SECTION 18
MAINTENANCE AND PROTECTION OF TRAFFIC
SECTION 18: MAINTENANCE AND PROTECTION OF TRAFFIC
1800 - GENERAL
1800.01
SCOPE
This work shall consist of maintenance and protection of traffic through or around areas of construction or
maintenance. The work includes, but is not limited to, provision of detours and diversions, furnishing,
erecting and maintaining temporary traffic control devices including barriers, barricades, cones, drums,
warning signs and lights, road lighting, traffic signals and flagmen, all in conformance with these
Specifications.
1800.02
RELEVANT AUTHORITIES
The Relevant Authorities referred to in the Documents with whom the Contractor will be required to discuss
and coordinate the maintenance and protection of traffic proposals shall be as follows:
a.
b.
c.
The Ministry of Public Works – Roads Administration Maintenance Department.
The Ministry of the Interior – General Traffic Department.
The Local Area Traffic Police for the area in which the maintenance
protection of traffic proposals are to be implemented.
d.
The Kuwait Municipality – Safety Department.
e.
The Kuwait Municipality – Fire Department.
f.
g.
The Kuwait Public Transport Company.
The various Service Ministries of
affected by the proposals.
Authorities
whose
plant
and
installations
and
are
The Contractor will require the authorisation of the authorities listed as Items (a) to (d) above to obtain a
permit to implement each stage or sub-stage of all road detours, diversions and maintenance and protection of
traffic schemes.
1800.03
STANDARDS AND CODES
The following standards and codes in their latest edition shall be particularly applied to works covered by this
Section.
MUTCD
AASHTO
KMTCD
ANSI/ASEA
ANSI 107-2004
ITE
EN 471
Manual of Uniform Traffic Control Devices for Streets and Highways, 2009.
A Policy of Geometric Design of Highways and Streets, 2004
Kuwait Manual on Traffic Control Devices
American National Standards Institution / International Safety Equipment
Association
High Visibility Garment Standard
Institute of transportation Engineers
High Visibility Warning Clothing
1801 - TRAFFIC CONTROL DEVICES
1801.01
GENERAL
Traffic control devices shall conform to the requirements of these Specifications and to the “Kuwait Manual
on Traffic Control Devices”. All traffic control devices shall be approved by the Engineer before installation
on the site. After initial use is complete the Contractor may reuse any approved item as the need arises.
Unless otherwise shown on the Drawings, the installation, layout, and removal of traffic control devices shall
comply with the ‘Traffic control for road works’ manual.
18-1
SECTION 18
1801.02
MAINTENANCE AND PROTECTION OF TRAFFIC
MATERIALS REQUIREMENT
Traffic control devices shall meet the following materials requirements.
1801.02.1
Reflectorisation
All sign panels, barricades, drums, vertical panels and flagmen’s paddles shall be reflectorised by use of
reflectorised sheeting meeting the minimum requirements of Type I, enclosed lens as Specified in Section 7
(Traffic Markings and Signs) of these Specifications. Painting shall not constitute an approved substitute for
achieving reflectorisation.
1801.02.2
Construction Signs
a.
Sign panels shall conform to Section 7 (Traffic Markings and Signs) of these Specifications and to the
“Kuwait Manual on Traffic Control Devices” and shall be as shown on the Drawings.
b.
Unless otherwise approved by the Engineer, sign posts shall be of 100 x 100 mm nominal sound
seasoned soft wood free of excessive knots, acceptable to the Engineer and conforming to Section 19
(Timber Structures) of these Specifications. The sign posts shall be drilled with breakway holes as
shown on the Drawings or as directed by the Engineer.
1801.02.3
Barricades
Barricades shall be made of metal or plastic and shall collapse when tipped over, Barricades made of wood
will not be permitted.
1801.02.4
Cones
Cones shall be manufactured of a material capable of withstanding impact without damage to the cones or
vehicles. All cones shall be red coloured with a white reflectorised band as indicated on the Drawings. The
band shall have a reflective intensity complying with the minimum requirements of Type 1, enclosed lens
sheeting as specified in Section 7 (Traffic Markings and Signs) of these Specifications. Cones shall be
capable of remaining upright during normal traffic flow and wind conditions in the area where they are used.
Cones shall be a minimum of 750mm and a maximum of 1000mm in height. All the cones used on any one
section of the Works shall be of the same height.
1801.02.5
Vertical Panels
Vertical panels shall be constructed of metal or plastic and those made of wood will not be permitted.
1801.02.6
Drums
Drums shall be plastic or other synthetic material approved by the Engineer of approximately 200 litre (55
gallon US) capacity, and shall be purpose-made for traffic control. Drums made of metal will not be
permitted.
Drums shall be of a shape that will resist rolling if knocked over and they shall be reflectorised and coloured
red with a white band at mid-height in accordance with the “Kuwait Manual on Traffic Control Devices”.
Where considered necessary by the Engineer, the drums shall be weighted with sand or water..
1801.02.7
Temporary Metal Beam Guard Rail
Temporary guardrail shall conform to the applicable Clauses of Section 12 (Metal Works) of these
Specifications. Used guardrail material will be permitted providing it is neat in appearance, straight, and is
approved by the Engineer.
18-2
SECTION 18
1801.02.8
MAINTENANCE AND PROTECTION OF TRAFFIC
Temporary Concrete Barriers
Temporary concrete barriers shall conform to the requirements of Section 5 (Concrete Works) of these
Specifications and shall be as shown on the Drawings. Unless otherwise directed by the Engineer, temporary
concrete barriers shall have Type C warning lights fixed to the top of the barriers at 6 m centres.
The Ministry of Public Works may furnish some or all of the temporary concrete barriers. It shall be the
Contractor’s responsibility to collect the barriers from the designated Ministry of Public Works store, load
and transport to the site of the Works, unload and position.
Should the Ministry of Public Works be unable to furnish sufficient or any temporary concrete barriers, the
Engineer will instruct the Contractor to provide such as are required.
On completion of the Contract all barriers, whether provided by the Ministry of Public Works or by the
Contractor, shall become the property of the Employer and shall be delivered to a Ministry of Public Works’
storage area as directed by the Engineer.
1801.02.9
Warning Lights
Warning lights shall be Type A (low intensity flashing), Type B (high intensity flashing), or Type C (steady
burn), and shall meet the minimum requirements of the Institute of Transportation Engineers “Standard for
Flashing and Steady-Burn Barricade Warning Lights”, insofar as the I.T.E standard does not conflict with the
“Kuwait Manual on Traffic Control Devices”.
Arrangements, responsibilities and charges for power supply shall be as described for temporary lighting in
Clause 1801.02.13 of these Specifications. No power supply shall be taken from any Ministry of Electricity
and Water source, including permanent or temporary street lighting circuits, without the prior written
approval of Ministry of Electricity and Water.
1801.02.10
Flashing Arrow Boards
Flashing arrow boards shall be a minimum of 1200 mm high and 2400 mm wide, and shall be finished with
flat black enamel. A minimum of fifteen, 150mm diameter, amber lamps shall be installed in the panel. The
lamp configuration shall be provided with a visor, and the lamps, when illuminated, shall be visible on a
clear, cloudless day, for a minimum distance of 1500 m. Flashing arrow boards having only pointing arrow
heads (chevrons) shall not be used.
Four selectable modes of operation shall be provided as follows:
a.
b.
c.
d.
Pass Left Mode – Lighted arrow flashing left.
Pass Right Mode – Lighted arrow flashing right.
Pass Right and Left Modes – Lighted arrow flashing right and left simultaneously.
Caution Travel Mode – The outside top and bottom lamps on the panel flashing on and off
simultaneously (in a pattern which will not indicate a direction).
The electronic circuitry shall provide between 35 and 50 complete, and equally spaced, operating cycles of
the sign per minute in each of the modes specified above. The power source and the controls used for the
lights shall be reliably governed and voltage stabilized so as to provide the required equally spaced operating
cycles. The Engineer will reject the use of any power source which does not provide this.
A switch controlled variable dimming device shall be provided on the control panel which will reduce the
voltage on the lamps (dimming) to a minimum of 50% for night time use. Arrow boards shall be mounted to
provide a minimum of 2100 mm between the bottom of the board and roadway.
Where the arrow board is mounted on a towable trailer, the trailer shall be fitted with a parking brake or other
device, which shall be approved by the Engineer, and which will prevent the trailer moving under the effect
of wind or air turbulence from passing traffic.
18-3
SECTION 18
MAINTENANCE AND PROTECTION OF TRAFFIC
Any generator used for powering the flashing arrow board shall not leak oil or fuel onto the road or ground,
and care shall be taken to avoid spillage during refuelling. Any asphalt road surface which, in the opinion of
the Engineer, has become contaminated by oil or fuel shall be cut out and reinstated to the Engineer’s
satisfaction at the Contractor’s expense.
Arrangements, responsibilities and charges for power supply shall be as described for temporary lighting in
Clause 1801.02.13 of these Specifications. No power supply shall be taken from any Ministry of Electricity
and Water source, including permanent or temporary street lighting circuits, without the prior written
approval of Ministry of Electricity and Water.
1801.02.11
Temporary Traffic Markings
a.
Temporary Painted Markings - Temporary painted traffic markings shall conform to the
requirements of Section 7 (Traffic Markings and Signs) of these Specifications.
b.
Temporary Tape Markings – Temporary traffic tape markings shall consist of glass spheres,
complying with the requirements of Section 7 (Traffic Marking and Signs) of these Specifications,
embedded into a binder on a suitable backing that is pre-coated with a pressure sensitive adhesive.
The spheres shall be of uniform gradation and distributed evenly over the surface of the tape. The
colour of the tape shall conform to colour tolerance for traffic marking paint, as required in Section 7
(Traffic Markings and Signs) of these Specifications, and be readily visible when viewed under
vehicle headlights at night. The pavement marking tape, when applied in accordance with
manufacturer’s recommended procedures, shall be weather resistant and shall show no appreciable
movement, fading, lifting, or shrinkage during the useful life of the marking. The tape, as supplied,
shall be of good appearance, free of cracks, and edges shall be true, straight, and unbroken. Only tape
specifically designed for this use will be permitted. Use of foil-backed tape will not be permitted.
1801.02.12
Raised Pavement Markers
Raised pavement markers shall conform to Section 7 (Traffic Marking and Signs) of these Specifications.
Non-reflective markers (Type n) shall be white or silver as directed by the Engineer.
1801.02.13
Temporary Lighting
The Ministry of Electricity and Water may furnish used single or twin-arm light standards 9 m to 16 m
(nominal) high with ballast and luminaries but without lamps and cut-outs. The Contractor shall be
responsible for collecting light standards from the Ministry of Electricity and Water.
Should the Ministry of Electricity and Water be unable to furnish used light standards and fittings, the
Engineer will instruct the Contractor to provide single or twin-arm 12 m standards with one lantern and 400
Watt mercury vapour lamp per arm complete with ballasts.
The Contractor shall furnish and install all cables, foundations, control cabinets, photo cells, lamps, cut-outs
and everything else necessary to provide a complete lighting installation, all as specified in Section 14
(Lighting and Electrical Works) of these Specifications.
During the construction of the Works, temporary light standards may be required to be removed and
reinstalled in other locations as directed or approved by the Engineer to suit the phasing of the Works.
The Contractor shall be responsible for making the necessary arrangements with the Electrical Distribution
Network Section of the Ministry of Electricity and Water for the connection of the control cabinets of the
lighting systems to the power supply network. A formal application for connection must also be made to
Ministry of Electricity and Water through the Engineer. Adequate notice shall be given to the Engineer to
permit the processing of this application. Connection to the network will be carried out by Ministry of
Electricity and Water. Any connection charges shall be the responsibility of the Contractor. The cost of
electricity used for temporary lighting systems will not be charged to the Contractor.
18-4
SECTION 18
MAINTENANCE AND PROTECTION OF TRAFFIC
All regulations of the Ministry of Electricity and Water shall be strictly observed in the distribution and use of
the supply. Under no circumstances shall any installation be connected to the mains supply until authorised
by the Engineer.
The nominal voltage of the mains power to be supplied by the Ministry of Electricity and Water is 240 volts,
single phase at a nominal frequency of 50 Hz.
1801.02.14
Temporary Traffic Signals
Temporary traffic signals are to be provided by the Contractor and shall be approved by the Engineer. The
signals used shall be multi-pole units complete with a controller covered by a sunshade, as shown on the
Drawings. The poles shall be fitted with either one or two sets of three standard lanterns.
All temporary traffic signal installations shall be to the approval of the Engineer and the Traffic Department
of the Ministry of the Interior, and shall be in general conformance with Section 16 (Traffic Control System)
of these Specifications.
Pre-timer control or alternative methods of vehicle detection may be proposed by the Contractor where
signals are proposed for short-term operation. These proposals shall be approved by the Engineer and the
Traffic Department of the Ministry of the Interior before being implemented.
Arrangements, responsibilities and charges for power supplies shall be as described for temporary lighting in
Clause 1801.02.13 of these Specifications. No power supply shall be taken from any Ministry of Electricity
and Water source, including permanent or temporary street lighting circuits, without the prior written
approval of Ministry of Electricity and Water.
1801.03
FLAGMEN
Persons acting as Flagmen shall be physically and mentally qualified, trained in their duties and courteous.
For daytime and nighttime activity, flaggers shall wear high-visibility safety apparel that meets the
Performance Class 2 and 3 requirements, respectively, of the American National Standards Institution /
International Safely Equipment Association 107-2004 publication entitled “American National Standard for
High-Visibility Apparel and Headwear”, or equivalent versions, and labeled as meeting the ANSI 107-2004
standard performance for Class 2 and 3 risk exposure, respectively. The apparel background (outer) material
color shall be either fluorescent orange-red or fluorescent yellow-green.. High visibility clothing shall be kept
clean and that which, in the opinion of the Engineer, has become so dirtied that it is no longer effective shall
be cleaned or replaced.
The retroreflective material shall be orange, yellow, white, silver, yellow-green, or a fluorescent version of
these colors, and shall be visible at a minimum distance of 300 m.
1802 - APPLICATION OF TRAFFIC CONTROL DEVICES
1802.01
GENERAL
Traffic control devices shall be provided and maintained both inside and outside the Contract Limits as
needed to facilitate traffic guidance and to ensure that all traffic, whether vehicular or pedestrian, will be
accommodated safely.
Prior to start of construction operations, the Contractor shall erect such signs, cones, drums, barricades, and
other traffic control devices as may be required in the Contract Documents, or on proposals submitted by the
Contractor and approved by the Engineer or as directed by the Engineer. During non-working hours and
following completion of a particular construction operation, all warning signs, except those necessary for the
safety of the public, shall be removed or entirely covered with metal, plywood, or other sheet approved by
the Engineer, so that the entire sign panel will be invisible to traffic.
18-5
SECTION 18
MAINTENANCE AND PROTECTION OF TRAFFIC
Traffic control devices shall be in place and operated only as long as they are needed. Only those devices that
apply to conditions actually in existence shall be in place. If not needed, the traffic control devices shall be
transported to a storage area for further reuse on the project.
1802.02
REFLECTIVE MATERIALS
Reflective materials on signs, drums, barricades, and other devices shall be kept clean, free from dirt, dust,
mud and road grime. Scratches, rips, and tears in the sheeting shall be promptly repaired by the Contractor to
the Engineer’s satisfaction. Reflective sheeting materials shall maintain a reflectivity of not less than 50% of
the minimum intensity values specified in Clause 1801.02.1 of these Specifications.
1802.03
SIGN PANELS, BARRICADES, CONES, VERTICAL PANELS AND DRUMS
Sign panels, barricades, cones, vertical panels and drums shall be installed as shown in the Contract
Documents, or on proposals submitted by the Contractor and approved by the Engineer or as directed by the
Engineer.
These devices shall be supplied and maintained by the Contractor and they shall be relocated, realigned or
replaced as necessary. Any traffic control devices provided under this Clause which are damaged, lost,
stolen, destroyed or deemed unacceptable while their use is required on the Contract shall be promptly
replaced by the Contractor without additional payment or compensation.
All traffic control devices referred to in this Clause shall remain the property of the Contractor. The
Contractor shall not remove any item from the Contract without the Engineer’s written agreement.
1802.04
TEMPORARY METAL BEAM GUARDRAILS
Temporary metal beam guardrails shall be installed where shown in the Contract Documents, or on proposals
submitted by the Contractor and approved by the Engineer or as directed by the Engineer. The Contractor
shall maintain the guardrails and shall promptly replace all damaged sections.
During construction of the Works, the temporary metal beam guardrails may be required to be removed and
reinstalled in other locations as directed or approved by the Engineer.
1802.05
TEMPORARY CONCRETE BARRIERS
Temporary concrete barriers shall be installed where shown in the Contract Documents, or on proposals
submitted by the Contractor and approved by the Engineer or as directed by the Engineer. The Contractor
shall maintain the barriers and shall promptly replace, repair or realign, as directed by the Engineer, all
damaged or displaced sections.
During the construction of the Works, the temporary concrete barriers may be required to be removed and
reinstalled in other locations as directed or approved by the Engineer.
1802.06
WARNING LIGHTS
Type A warning lights shall be securely fixed to barricades or drums used singly or installed as shown in the
Contract Documents, or on proposals, submitted by the Contractor and approved by the Engineer or as
directed by the Engineer.
Type B warning lights shall be securely fixed to warning signs, barricades, and independent supports shown
in the Contract Documents, or on proposals submitted by the Contractor and approved by the Engineer or as
directed by the Engineer.
Unless otherwise specified, Type C warning lights shall be securely fixed to barricades, temporary concrete
barriers or drums as shown in the Contract Documents, or on proposals submitted by the Contractor and
approved by the Engineer or as directed by the Engineer.
18-6
SECTION 18
1802.07
MAINTENANCE AND PROTECTION OF TRAFFIC
FLASHING ARROW BOARDS
Flashing arrow boards shall be installed or positioned as shown in the Contract Documents, or on proposals
submitted by the Contractor and approved by the Engineer or as directed by the Engineer.
1802.08
1802.08.1
TEMPORARY TRAFFIC MARKINGS
General
Thinly applied Hot-Sprayed Thermoplastic layer, Reflectorised Traffic Paint or Temporary Traffic Tape may
be used for temporary pavement markings. In determining the type of marking to be used the Engineer shall
consider the duration the detour will be in use and the requirement to maintain a high standard of marking at
all times.
Before applying any temporary pavement marking, the Contractor shall demonstrate to the Engineer’s
satisfaction that the markings can be removed as specified herein.
Temporary traffic markings shall be installed as shown in the Contract Documents, on proposals submitted
by the Contractor and approved by the Engineer or as directed by the Engineer and shall be in conformance
with the following requirements:
a.
b.
c.
d.
The style of traffic markings shall be established in accordance with these Specifications and the
Kuwait Manual on Traffic Control Devices and shall be neat in appearance.
Broken striping shall be as Section 7 (Traffic Markings and Signs) of the Specifications excepting that
the width shall be 150 mm.
Solid striping shall be 150 mm wide.
Gaps between adjacent striping shall be 175 mm wide.
1802.08.2
Removal of Painted Pavement Markings
All conflicting construction striping and other pavement markings shall be removed to the fullest extent
possible by sand-blasting or by some other approved method that does not materially damage the surface or
texture of the pavement. Painting-out of conflicting markings shall not be permitted. The removal pattern
shall be of a shape that does not perpetuate the outline of the removed marking. Any damage to the pavement
surface shall be repaired by the Contractor at his own expense by methods acceptable to the Engineer.
Accumulations of sand or other material which might constitute a traffic hazard shall be removed. Sandblasted areas shall be lightly coated with an asphaltic emulsion or approved equal after inspection and
approval by the Engineer. All the foregoing operations shall be complete to the satisfaction of the Engineer
prior to opening to traffic.
1802.08.3
Opening of Roads and Detours
No road or detour shall be opened to traffic before all applicable traffic markings have been installed and all
conflicting markings removed to the satisfaction of the Engineer except for the markings at junctions of
Detours and existing roads which markings shall be installed and/or removed immediately after the road or
detour is opened or closed.
1802.09
TEMPORARY RAISED PAVEMENT MARKERS
Temporary Raised pavement markers shall be installed where shown in the Contract Documents, on
proposals submitted by the Contractor and approved by the Engineer or as directed by the Engineer.
Installation of temporary markers shall be in accordance with manufacturer`s instructions and shall be
cemented to the surface with the adhesive recommended by the manufacturer, and the procedures set out in
Section 7 (Traffic Markings and Signs) of these Specifications unless approval is given in writing by the
Engineer to other methods of fixing.
Where such markers are to be removed but the road surface is to remain in use, the markers shall be carefully
removed with the minimum of damage to the road surface. Any damage to the surface shall be made good at
the Contractor’s expense with materials and in a manner approved by the Engineer.
18-7
SECTION 18
1802.10
MAINTENANCE AND PROTECTION OF TRAFFIC
TEMPORARY LIGHTING
Temporary lighting shall be installed where shown in the Contract Documents, or on proposals submitted by
the Contractor and approved by the Engineer or as directed by the Engineer. The location and spacing of light
standards shall be approved by the Engineer unless the required spacing is indicated on the Contract
Drawings.
The Contractor shall maintain the temporary lighting installations and shall carry out routine inspections to
ensure all installations are functioning satisfactorily.
The Contractor shall promptly replace or repair any faulty or malfunctioning lamps or installations. The
Engineer shall be informed promptly of any traffic damaged installation and such installation shall be
replaced or repaired as directed by the Engineer.
During the construction of the Works, temporary lighting may be required to be removed and re-installed in
other locations as directed or approved by the Engineer.
1802.11
TEMPORARY TRAFFIC SIGNALS
Where the maintenance of traffic scheme requires the installation of traffic signals at a junction where there
are no existing signals the Contractor shall supply and install all temporary signal control equipment.
At existing signal – controlled junctions the Contractor shall utilise the existing equipment and shall supply
and install such additional equipment required for any modified road layout or traffic management system at
the junction.
The Contractor shall modify the temporary signal installation to suit the various detour and traffic
management stages and shall supply and install all additional equipment required to maintain continuous
operations of the traffic signals while transferring from one detour or traffic management stage to another.
The Contractor shall maintain the temporary traffic signal installation and shall replace promptly any broken
lamps and shall replace and repair any damaged or malfunctioning equipment.
Unless otherwise agreed with the Engineer the new permanent traffic signal equipment shall not be installed
at a junction until the permanent carriageway works are complete at the particular junction.
1802.12
DUST CONTROL
The Contractor shall, to the maximum extent possible, prevent nuisance due to dust raised as a result of
delivery of materials, excavation, backfilling, stockpiling, loading or unloading, hauling, the construction and
maintenance of Detours or any other of his operations. Dust control shall be by watering by tanker trucks
with spray attachments or by other approved methods.
1802.13
FLAGMEN
Flagmen shall be used only where approved by the Engineer and the Relevant Authorities. They shall not be
used for night-time operations unless approved by the Engineer.
1802.14
FAILURE OF THE CONTRACTOR TO COMPLY
Should the Contractor fail to provide satisfactory maintenance and protection of traffic through areas of
construction, or should he fail to adequately maintain access to properties and facilities affected by the
Works, or should he fail to furnish, maintain, repair or replace any traffic control devices within 24 hours of
being given written notice by the Engineer, the Employer shall apply a penalty in accordance with Clause
102.15 (Failure of the Contractor to Comply) of Section 1 (General) of these Specifications.
18-8
SECTION 18
1802.15
MAINTENANCE AND PROTECTION OF TRAFFIC
RECOVERY OF MATERIALS
On completion of the Works or when no longer required, the Contractor shall remove, transport and place in
a Ministry of Electricity and Water storage yard designated by the Engineer, all light standards and lighting
appurtenances whether initially provided by Ministry of Electricity and Water or by the Contractor. All
materials for Ministry of Electricity and Water storage shall be cleaned of dirt, concrete and deleterious
coatings to the approval of the Engineer.
On completion of the Works or when no longer required, the Contractor shall remove, transport and place in
a MPW storage yard designated by the Engineer, all temporary concrete barriers whether initially provided
by MPW or by the Contractor. All materials for MPW storage shall be cleaned of dirt and deleterious
coatings to the approval of the Engineer.
Asphaltic Pavement materials shall be recovered and stockpiled in locations designated by the Engineer in
accordance with Sections 2 (Earthworks) and 4 (Asphalt Works) of these Specifications.
All other traffic control devices shall become the property of the Contractor and when no longer required shall
be removed from the Works.
1803 - TRAFFIC SAFETY SUPERVISOR
1803.01
GENERAL
The Contractor shall provide a competent Traffic Safety Supervisor who shall be approved by the Engineer
and who shall be responsible for the Contractor’s maintenance and protection of traffic operations. This
Supervisor shall be contactable and available at all times during the Contract period and shall have received
traffic safety training or shall have had previous experience in supervising maintenance and protection of
traffic through highway construction work areas including Expressways and other high-speed / high traffic
volume roads.
1803.02
DUTIES
The Contractor’s Traffic Safety Supervisor’s duties shall include, but not be limited to, the following:
a.
b.
c.
d.
e.
f.
g.
h.
Understanding the requirements of these Specifications and the Contract Documents.
Assuring compliance of the Contractor’s maintenance and protection of traffic activities as required
by the Contract Documents.
Taking responsibility for coordination with, and gaining approvals from, all relevant Authorities for
the maintenance and protection of traffic operations as required by the Contract Documents.
Routinely inspecting the condition and position of traffic control devices in use on the Works and
ensuring that they are in proper working order, clean, visible and conforming to the Drawings, the
approved detailed detour Construction drawings and these Specifications.
Reviewing and anticipating appropriate traffic control device needs, advising the Engineer thereof, and
ensuring that such devices as are determined to be necessary for safe and efficient traffic movement are
obtained and placed at the required time.
Coordinating maintenance and protection of traffic operations with the Engineer.
Reviewing the Contractor’s equipment operations and storage, and his materials handling and storage
with respect to traffic safety and operation as required by the Contract provisions.
Holding an initial traffic safety meeting with the Main Contractor’s and Subcontractor’s
Superintendents and Foremen prior to beginning construction and periodic meetings (at least monthly)
thereafter as deemed necessary or as directed by the Engineer. The Engineer shall be provided with
the opportunity to attend these meetings and shall be issued with concise notes or minutes of these
meetings whether attended by him or not.
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SECTION 18
MAINTENANCE AND PROTECTION OF TRAFFIC
1804 - LIMITATION OF OPERATIONS
1804.01
GENERAL
The Contractor’s operations shall be limited as follows:
a.
All persons employed on installation, maintenance and removal of traffic devices and on the Works
shall wear an orange high visibility and reflective jacket conforming to EN 471, Class 3, or similar
approved by the Engineer and orange or light-coloured safety helmets. High visibility clothing shall be
kept clean and that which, in the opinion of the Engineer, has become so dirtied that it is no longer
effective shall be cleaned or replaced.
b.
Vehicles employed on installation, maintenance and removal of traffic devices or on the Works shall
be equipped with conspicuity devices approved by the Engineer. As a minimum, each vehicle shall be
equipped with two flashing amber beacons which shall be clearly visible all around the vehicle.
c.
Vehicles shall only enter and leave a works area which is under Maintenance and Protection of Traffic
by means of designated and properly signed entrance and exit points approved by the Engineer.
d.
No work shall be performed during the hours of darkness unless authorized in writing by the
Engineer.
e.
Night-time construction operations, where authorised by the Engineer, shall be illuminated by a
lighting system approved by the Engineer. The lighting system shall be positioned and operated to
preclude glare to approaching vehicles.
f.
The Contractor’s equipment shall be operated in the direction of traffic wherever practical.
g.
Insofar as is practicable, the construction of adjacent traffic lanes shall be completed to the same
elevation within the same or subsequent workday. Where not practicable, suitable arrangements shall
be made to protect traffic to the approval of the Engineer.
h.
The Contractor will coordinate with the Engineer on locations for staging areas. Selection of all
staging areas is subject to the approval of the Engineer. The boundary of all staging areas shall be
located at least 10 m from the edge of pavement. Access and egress from the staging area shall only
be from designated locations which shall have adequate sight distances, shall be properly signed, and
shall be subject to the approval of the Engineer.
i.
During non-work hours, pavers and rollers shall be parked in the staging areas, or 10 m from the edge
of the pavement. When it is impractical to meet these restrictions, due to land features or restrictions,
pavers and rollers may be parked as far from the pavement edge as possible with a minimum distance
of 2 m, as approved by the Engineer. An adequate number of barricades, with Type A warning lights,
shall be placed on the pavement side of the parked pavers and rollers and the cost will be borne by the
Contractor. All other equipment shall be stored at approved staging areas.
j.
Private vehicles, belonging to the Contractor’s employees, shall be parked in areas approved by the
Engineer and at no time shall private vehicles belonging to the Contractor’s employees be parked
within 10 m of traffic lanes.
k.
Contractor’s material shall be stored at the approved Contractor’s staging areas or at other locations
approved by the Engineer. If suitable areas within the project limits are not found to be adequate for
the Contractor’s storage plant or office requirements, the Contractor shall be responsible to find other
areas outside the project limits. All costs associated with the additional areas obtained shall be borne
by the Contractor.
18-10
SECTION 18
MAINTENANCE AND PROTECTION OF TRAFFIC
l.
The Contractor shall provide equipment for communications between the Works, flagmen where used,
and the mixing or batching plant, and shall make such equipment available to the Engineer for the
proper coordination of the Work, and for maintenance and protection of traffic.
m.
The Contractor shall schedule operations to minimise potential traffic backups.
n.
The Contractor shall not switch traffic routes for the closure or opening of lanes, diversions or detours
without first having:
i
ii
iii
iv
v.
The approval of the Engineer and all Relevant Authorities.
Adequate equipment and personnel on Site to remove and set up all traffic control devices
as approved by the Engineer.
Adequate equipment and personnel on Site to install any necessary road markings in
conjunction with the switching of traffic routes.
Adequate communications to control traffic safety.
All equipment and materials removed from the travelled way.
o.
With the prior approval of the Engineer and other Relevant Authorities, certain minor roads may be
operated, on a temporary basis, on a one-way-reversible-flow system. A minimum lane width of 3.5 m
shall be maintained and traffic shall be regulated by temporary traffic signals. STOP/GO signs
operated by flagmen may only be used in lieu of traffic signals with the approval of the Engineer and
the Relevant Authorities.
p.
The Engineer may suspend the performance of the Works, either in whole or in part, should, in the
Engineer’s opinion, unsafe traffic management related work methods take place or excessive traffic
delays occur during a construction operation. In either case, work will not be permitted to
recommence until the reasons for the suspension are corrected to the Engineer’s satisfaction.
1805 - MAINTENANCE OF ACCESSES
1805.01
GENERAL
The Contractor shall ensure that adequate access is maintained at all times to properties and facilities affected
by the Works.
Such properties and facilities shall include, but not be limited to, all public and private buildings, houses,
garages, parking areas, gardens, services (sub-stations, pump stations, manholes, pipelines, valve chambers
etc.), shops or any other facility designated by the Engineer.
As a minimum, accesses shall be replaced with the same width, standard and surface type as the existing
access facilities, but in all cases a construction of all accesses shall be agreed with the Engineer prior to
construction.
The locations of accesses to be maintained are not shown on the Drawings, and the Contractor shall
understand that any existing access whether public or private, paved or unpaved shall be maintained at all
times during the Contract period unless specifically authorised otherwise by the Engineer in writing.
1806 - TEMPORARY, TOTAL OR PARTIAL CLOSURE OF ROADS
1806.01
SCOPE
With the approval of the Engineer and all Relevant Authorities, the Contractor may temporarily, totally or
partially close existing roads to traffic. Approval shall not normally be given to total closure or partial closure
of lengths in excess of 500 m.
Unless agreed otherwise in writing by the Engineer, accesses shall be maintained at all times in accordance
with Clause 1805 of these Specifications.
18-11
SECTION 18
1806.02
MAINTENANCE AND PROTECTION OF TRAFFIC
DEFINITIONS
a.
A temporary total closure of a road shall comprise the closure of a road to all through vehicular and, if
approved by the Engineer, all pedestrian traffic movements.
b.
A temporary partial closure of a road shall include, but not be limited to, the following:
i.
ii.
iii.
iv.
1806.03
Closure of a lane or lanes of one or both carriageways of a dual carriageway.
Reduction in width of lanes of dual carriageways.
Closure of lanes of two-way roads.
Reduction in width of two-way roads.
GENERAL REQUIREMENTS
In presenting his proposals for a temporary, total or partial closure of a road, the Contractor shall show the
alternative roads which may be used by traffic, together with all necessary signage and traffic control device
layouts to ensure the free flow of traffic and the safety of traffic, pedestrians and properties. The Contractor
shall also indicate how vehicular and pedestrian access will be maintained to affected properties and
facilities, and the timetable for the road closure indicating whether it will be permanent for the stated
duration or only operative at certain times of the day/night.
The Contractor shall include in his proposals any temporary minor construction works (road widening,
amending corner radii, temporary ramps etc.) which may be necessary to ensure satisfactory maintenance and
protection of traffic and to gain the approval of the Engineer and of the Relevant Authorities to his proposals.
If required by the Engineer, the Contractor shall promptly make any amendments to his proposals, including
the provisions of additional or alternative traffic control devices.
The Contractor shall provide the alternative roads, or parts thereof, with additional signs, traffic markings,
temporary lighting, traffic signals and other traffic control devices as determined necessary by the Engineer
or any Relevant Authority.
Should the Engineer or any of the Relevant Authorities refuse the Contractor permission to institute a
temporary, total or partial closure of a road, not forming part of the Detour concepts shown in the Contract
Documents, the Contractor shall not be entitled to any time extension or financial compensation.
On completion of the total or partial closure of a road, the Contractor shall remove all temporary
construction, and traffic control devices and shall restore the site to its original condition or such other
condition as directed or approved by the Engineer.
1807 - DETOURS AND DIVERSIONS
1807.01
GENERAL
Detour works shall comprise but not be limited to necessary field surveys, the construction and maintenance
of paved and unpaved Detour carriageways and shoulders including all earthworks, the provision and
installation of metal beam guardrails, temporary concrete barriers, adequate drainage, lighting, traffic signals,
signs, barricades, pavement markings and other traffic control devices as shown in the Contract Documents,
or on proposals submitted by the Contractor and approved by the Engineer or as directed by the Engineer.
Where required, temporary protection of existing services, in accordance with the requirements of the
concerned Service Authority or Company, shall form part of the Detour works.
Restoration of the Detour sites to their original condition or such other condition as directed or approved by
the Engineer will be required on completion of use of the Detours.
Diversion works shall comprise, but not be limited to, the installation, maintenance and removal of traffic
signs (including temporary illumination of the signs where required by the Drawings or directed by the
18-12
SECTION 18
MAINTENANCE AND PROTECTION OF TRAFFIC
Engineer), traffic signals, and other traffic control devices indicating and controlling alternative routes on
existing roads, as shown in the Contract Documents, or on proposals submitted by the Contractor and
approved by the Engineer or as directed by the Engineer, for use where an existing road is temporarily closed
due to maintenace or construction work.
1807.02
DRAWINGS FOR DETOURS, DIVERSIONS AND TEMPORARY, TOTAL OR
PARTIAL ROAD CLOSURES
1807.02.1
Traffic Detour and Diversion Drawings
The Traffic Detour and Diversion Drawings included in the Documents show the major road detours,
diversions, road closures and traffic management schemes proposed for construction of the Works.
The Drawings have been approved by the Ministry of Public Works Roads Administration, Maintenance
Department, the Ministry of the Interior General Traffic Department, the Traffic Studies Section of the
Kuwait Municipality Planning Department, the Municipality Traffic Department and the Kuwait Public
Transport Company. The Drawings for the major detours and diversions are suitable for submission to the
appropriate Relevant Authorities to obtain permits to implement the major road detours and diversion
proposals.
1807.02.2
Alternative Proposals
If the Contractor wishes to propose an alternative detour or diversion concept or significantly amend the
alignment of the detour roads as indicated on the Traffic Detour Drawings he shall be entirely responsible for
agreeing the revised concept with and for preparing detailed detour construction or diversion drawings (to the
same degree of detail as those forming part of the Traffic Detour Drawings) for approval of the Engineer, the
Relevant Authorities (as specified herein) and the Traffic Studies Section of the Kuwait Municipality
Planning Department.
1807.02.3
Drawings for Sub-Stagings, Localised Detours and Temporary, Total or Partial Closure
of Roads
The Contractor shall prepare any additional drawings required to show sub-stagings necessary to construct
the major detours together with all drawings required to obtain permits for localised short term detours and
temporary, total or partial closure of roads. The drawings shall be to a scale of 1:1000 and shall show the
proposed highway geometry and the number, type and location of traffic control devices as specified in these
Documents. Copies of the Contract Drawings may be used as the base for all such additional drawings.
1807.02.4
Vertical Alignment
The vertical profile for detour roads shown on the Traffic Detour Drawings is indicative of the alignment
proposed. The Contractor shall review the proposed alignment and make such adjustments, necessary to
maintain the required clearance to services and to ensure adequate road drainage.
1807.02.5
Detailed Detour Construction and Diversion Drawings
Drawings prepared by the Contractor for alternative detour and diversion schemes, and those for sub-stagings
of major detours, minor detours or for temporary, total or partial closure of roads shall become detailed
detour Construction drawings once approved by the Engineer and the appropriate Relevant Authorities.
The detailed detour Construction and diversion drawings shall be a part of the Contract Documents, provided
that the approval of the drawings shall in no way release the Contractor from his responsibilities for the
proper fulfillment of the requirements of the Contract. The Contractor shall provide the Engineer with one
transparency on stable polyester film together with six (6) paper copies and one soft (CD) copy of each of the
detailed detour Construction and Diversion drawings with the exception of those which have been nominated
from the set of Traffic Detour and Diversion Drawings.
18-13
SECTION 18
1807.03
1807.03.1
MAINTENANCE AND PROTECTION OF TRAFFIC
GENERAL CONDITIONS TO BE OBSERVED FOR DETOURS AND DIVERSIONS
Detours
General conditions for Detours shall include the following:
a.
The flow of traffic shall be maintained at all times.
b.
Traffic shall not be permitted to pass under bridges or other overhead structures which are under
construction except with the approval of Engineer.
c.
Detour roadway cross-sections and pavement structure sections shall be as detailed on the Drawings
or as specified herein.
d.
All Detour staging and sub-staging shall be approved by the Engineer in writing prior to commencing
construction.
e.
All traffic control and signing arrangements shall be in accordance with the requirements of these
Specifications.
f.
The Contractor shall ensure that the Detours are maintained at all times and that all necessary repairs
are promptly carried out.
g.
Pavement markings shall be re-applied when necessary as directed by the Engineer to maintain a high
standard of definition throughout the period a Detour is in use.
1807.03.2
Diversions
General conditions for Diversions shall include the following:
a.
The flow of traffic shall be maintained at all times.
b.
The design of the diversion shall take into account the requirements of any load restrictions on
bridges, culverts and other structures that may be considered as part of a diversion route.
c.
All traffic control and signing arrangements shall be in accordance with the requirements of these
Specifications. Temporary traffic signs shall be illuminated at night where shown on the Drawings or
required by the Engineer.
1807.04
1807.04.1
TYPES OF DETOURS AND DIVERSIONS
General
The following types of Detours and Diversions shall be utilised as shown in the Contract Documents, on
proposals submitted by the Contractor and approved by the Engineer or as directed by the Engineer.
Type I Temporary Unsurfaced Detour (for one week period)
Type II Temporary Surfaced Detour (for one month period)
Type III Short Term Detour (for three months period)
Type IV Long Term Detour ( for longer than three months period)
Type V Diversion using existing roads
1807.04.2
Type I – Temporary Unsurfaced Detour
The existing ground surface shall be graded and compacted to the satisfaction of the Engineer.
18-14
SECTION 18
MAINTENANCE AND PROTECTION OF TRAFFIC
The Contractor shall ensure satisfactory dust control in accordance with Clause 1802.12 of these
Specifications.
1807.04.3
Type II – Temporary Surfaced Detour
The surface of the Detour shall be prepared as noted for a Type I Detour and shall then be treated with a prime
coat as described in Clause 405 of Section 4 (Asphalt Works) of these Specifications followed by a 50 mm
thick layer of asphaltic concrete Type II laid and compacted in accordance with Section 4 (Asphalt Works) of
these Specifications.
1807.04.4
Type III and Type IV Detours
The pavement construction details for both Type III Short Term and Type IV Long Term Detours will be as
shown in the Contract Documents, on proposals submitted by the Contractor and approved by the Engineer
or as directed by the Engineer.
1807.04.5
Type V Diversion
The diversion shall utilize existing roads and shall follow the route and utilize the traffic signs layout and
legends, traffic signals, and other traffic control devices indicating and controlling alternative routes on
existing roads as shown on the Contract Drawings or directed by the Engineer/MOI. If the Contractor wishes
to propose an alternative diversion concept or significantly amend the route of the diversion roads as
indicated on the Drawings or directed by the Engineer/MOI, he shall be entirely responsible for agreeing the
revised concept with, and for preparing detailed diversion drawings (to the same degree of detail as those
forming part of the Traffic Diversion Drawings) for approval of, the Engineer, the Ministry of Interior’s
Traffic department, the Relevant Authorities (as specified herein) and the Traffic Studies Section of the
Kuwait Municipality Planning Department.
1807.05
REQUIREMENTS FOR DETOURS AND DIVERSIONS
1807.05.1
General
The requirements of Clause 1802 Application of Traffic Control Devices of these Specifications as
supplemented herein shall apply to Detour and Diversion Works.
1807.05.2
Construction Requirements
Earthworks shall be constructed as shown in the Contract Documents, on proposals submitted by the
Contractor and approved by the Engineer or as directed by the Engineer. Acceptable grades and grade
transitions shall be provided where Detours join existing pavements.
The works shall be carried out in accordance with the following -Sections of these Specifications:
a
b.
c
d.
Earthworks Section 2 (Earthworks)
Sub-Base Section 3 (Sub-Base and Base Course)
Asphalt Works Section 4 (Asphalt Works)
Temporary Drainage Section 6 (Stormwater Drainage)
The requirements for Dynaflect testing of the earthworks (Clause 204.01.3) of Section 2, sub-base (Clause
303.03.7) of Section 3 and asphalt works (Clause 411.03.4) of Section 4 of these Specifications shall not
apply to Detour Types I, II and III which do not form part of the Permanent Works.
18-15
SECTION 18
1807.05.3
MAINTENANCE AND PROTECTION OF TRAFFIC
Temporary Lighting
1807.05.3.1 Detours
The Detour lighting system shall be as shown in the Contract Documents, on proposals submitted by the
Contractor and approved by the Engineer or as directed by the Engineer. Unless otherwise specified, the
Contractor shall install light standards at approximately 40 m spacings in the median and/or on one or both
sides of the Detours.
1807.05.3.2 Diversions
Any additional temporary lighting required on a Diversion route shall be as shown in the Contract Documents,
on proposals submitted by the Contractor and approved by the Engineer or as directed by the Engineer.
1807.05.3.3 Signs
Where shown on the Drawings or required by the Engineer, temporary Detour and Diversion traffic signs
shall be illuminated to the approval of the Engineer.
1807.05.4
Cross Drainage
The Contractor shall ensure the continuity of existing cross-drainage facilities by extending them under
Detours as shown in the Contract Documents, on proposals submitted by the Contractor and approved by the
Engineer or as directed by the Engineer.
Cross-drainage shall be provided under Detours in locations approved or as directed by the Engineer.
Unless otherwise shown on the Drawing or in the Contract Documents or unless otherwise directed by the
Engineer the extension of existing cross-drainage facilities and the provision of cross-drainage under Detours
shall be by 1000 mm diameter reinforced concrete pipes as specified in Section 6 (Stormwater Drainage) of
these Specifications.
Where specified or as directed by the Engineer drainage pipes shall be recovered, cleaned and set aside for
reuse on other Detours. Used pipes shall not be used in the permanent works.
1807.05.5
Restoration of Detour Sites
On completion of the Works or when, in the opinion of the Engineer, the Detours are no longer required, the
Contractor shall remove all temporary lighting, and all construction, materials, and structures as specified in
Clause 1802 of these Specifications, and shall restore the Detour sites to their original condition, or to such
other condition as shown in the Contract Documents, on proposals submitted by the Contractor and approved
by the Engineer or as directed by the Engineer.
1807.05.6
Restoration of Diversions
On completion of the Works or when, in the opinion of the Engineer, the Diversions are no longer required,
the Contractor shall remove any temporary lighting and all temporary traffic signs, temporary traffic signals,
other temporary traffic control devices, as specified in Clause 1802 of these Specifications, and shall restore
the Diversion Roads to their original condition, or to such other condition as shown in the Contract
Documents, on proposals submitted by the Contractor and approved by the Engineer or as directed by the
Engineer.
1808 - PORTABLE ENERGY ABSORBING TERMINAL (E.A.T.) SYSTEMS
The portable E.A.T. systems are to be used as shown in the Drawings in connection with the maintenance
and protection of traffic during the various construction stages.
18-16
SECTION 18
MAINTENANCE AND PROTECTION OF TRAFFIC
The materials, installation, spare parts, repair of damaged E.A.T. systems and all requirements for the E.A.T.
system will be provided in accordance with Clause 1206 of Section 12 (Metalworks) of these Specifications.
Where indicated on the Drawings and when directed by the Engineer, the Contractor shall relocate such
portable E.A.T. systems. The relocation shall include the complete portable E.A.T. system with all anchors.
When no longer required for the maintenance and protection of traffic during construction, the Contractor
shall remove all portable E.A.T. systems, which shall become the property of the Employer, and shall load,
transport, unload and place them in storage at a location directed by the Engineer.
1809 - MEASUREMENT AND PAYMENT FOR MAINTENANCE AND PROTECTION OF TRAFFIC
1809.01
MEASUREMENT
Measurement shall be as follows:
1809.01.1
Construction Signs and Vertical Panels
Construction signs and vertical panels shall each be measured by square metre of face area of each type for
each time they are initially used in an area or locality, as shown in the Contract Documents, or as proposed
by the Contractor and approved by the Engineer, or as directed by the Engineer.
1809.01.2
Barricades, Cones and Drums
Barricades, Cones and Drums shall each be enumerated separately for each type for each time they are
initially used in an area or locality, as shown in the Contract Documents, or as proposed by the Contractor
and approved by the Engineer, or as directed by the Engineer.
1809.01.3
Temporary Metal Beam Guardrail
Temporary Metal Beam Guardrail shall be measured by the metre run (centre of end post to centre of end
post). Measurement shall be for:
a.
b.
c.
1809.01.4
as provided and installed.
as provided and installed as replacement to damaged rail.
as removed and re-installed.
Temporary Concrete Barriers
Temporary Concrete Barriers shall be measured by the metre run. Measurement shall be for:
a.
b.
c.
d.
e.
1809.01.5
as provided by Contractor and installed.
as provided by MPW and installed.
as provided by Contractor and installed as replacement to damaged barriers.
as provided by MPW and installed as replacement to damaged barriers.
as removed and re-installed.
Warning Lights
Warning lights type A, B or C shall be measured separately by the actual number of each type for each time
they are initially used in an area or locality as shown in the Contract Documents, or as proposed by the
Contractor and approved by the Engineer or as directed by the Engineer.
1809.01.6
Flashing Arrow Boards
Flashing Arrow Boards shall be measured by unit on a daily basis for any portion of a day for which they
were ordered by the Engineer and were actually operational on the Works.
18-17
SECTION 18
1809.01.7
MAINTENANCE AND PROTECTION OF TRAFFIC
Temporary Traffic Markings
Temporary Traffic markings shall be measured as specified in Clause 701. 16 (Measurement and Payment of
Road Markings) of Section 7 (Traffic Marking and Signs) of these Specifications for each type of material
used. Measurement shall be for:
a.
b.
c.
1809.01.8
application
removal
re-application
Raised Pavement Markers
Raised Pavement Markers shall be measured by the number installed, removed, or reinstalled. Measurement
shall be for:
a.
b.
c.
1809.01.9
Non reflective markers
Reflective markers (regardless of colour combination)
Type d markers
Temporary Lighting
Temporary Lighting shall be measured by the number of single-arm and the number of double-arm standards
installed. Measurement shall be for:
a.
b.
c.
d.
e.
f.
g.
h.
i.
J
1809.01.10
single-arm standards as installed (Ministry of Electricity and Water provided)
single-arm standards as installed (Contractor provided)
double-arm standards as installed (Ministry of Electricity and Water provided)
double-arm standards as installed (Contractor provided)
single-arm standards as installed as replacement to damaged standards (Ministry of Electricity
and Waterprovided).
single-arm standards as installed as replacement to damaged standards (Contractor provided).
double-arm standards as installed as replacement to damaged standards (Ministry of Electricity
and Water provided)
double-arm standards as installed as replacement to damaged standards (Contractor provided)
removal and reinstallation of single arm standards.
removal and reinstallation of double arm standards.
Temporary Traffic Signals
Temporary Traffic Signal installations shall be measured as an item for each junction to include installation,
maintenance, and removal.
1809.01.11
Dust Control
Dust Control shall be measured and paid for separately for Detours only. Measurement shall be by the
number of 1000 litre units of water used as approved by the Engineer.
1809.01.12
Flagmen
When required, flagmen shall not be measured and paid for separately but shall be considered a subsidiary
obligation of the Contractor under other items of this Section.
1809.01.13
Maintenance of Access
Except for measurement and payment of items included in Section 18 (Maintenance and Protection of
Traffic) of these Specifications, maintenance of access shall not be measured and paid for separately but will
be considered a subsidiary obligation of the Contractor under other items of this Section.
18-18
SECTION 18
1809.01.14
MAINTENANCE AND PROTECTION OF TRAFFIC
Detours and Diversions
Measurement of temporary unsurfaced detours shall be by the metre square of carriageway as defined in
the Contract and/or as instructed by the Engineer.
Measurement of temporary paved detours shall be by the metre square of the top of the paved surface for the
types specified. Tapered edges of the paved surfaces shall not be included in the measurement. Measurement
of Diversions will be by the unit, per Diversion including setting up, maintenance, and removal of all signs,
temporary lighting, temporary signals and everything else necessary for the safe operation of the diversion,
for any length of time of diversion. Measurement shall be for:
a.
b.
c.
d.
e.
Type I Temporary Unsurfaced Detour
Type II Temporary Surfaced Detour
Type III Short Term Detour
Type IV Long Term Detour
Type V Diversion
The construction of other detours and access roads required but not shown in the Contract Documents shall
not be measured but shall be considered as subsidiary to other items of work.
1809.01.15
Cross-Drainage
Cross drainage pipes shall be measured by the overall metre run of each pipe diameter regardless of depth for
both the initial installation and for re-use.
1809.01.16
Maintenance of Detours and Diversions
The cost for maintaining the detours and diversions, including such items but not limited to metal beam
guardrails, temporary concrete barriers, flashing arrow boards, raised pavement markers, temporary lighting,
temporary traffic signals, temporary signage, detour pavement, earthworks and shoulders and drainage shall
not be measured or paid for separately but shall be considered a subsidiary obligation of the Contractor under
other items of this Section.
1809.01.17
Restoration of Detour and Diversion Sites
Restoration of Detour sites shall not be measured and paid for separately but will be considered a subsidiary
obligation of the Contractor under other items of this Section.
1809.01.18
Contractor’s Traffic Safety Supervisor
The Contractor’s Traffic Safety Supervisor, communications equipments, and night time construction
lighting system will not be measured or paid for but will be considered a subsidiary obligation of the
Contractor under other items of this Section.
1809.01.19
Portable Energy Absorbing Terminal (E.A.T.) Systems
Measurement shall be by the number for each type required as provided and installed or as removed and
reinstalled.
No separate measurement or payment will be made for repair of E.A.T. systems damaged by any cause
whatsoever, the cost of which shall be considered a subsidiary obligation of the Contractor under other items
of this Section.
No separate measurement or payment will be made by the Employer for the removal, loading, transporting,
off-loading and placing portable E.A.T. systems in the MPW stores when no longer required and when
directed by the Engineer.
18-19
SECTION 18
MAINTENANCE AND PROTECTION OF TRAFFIC
1809.02
PAYMENT
1809.02.1
General
The quantities, as determined in accordance with Clause 1809.01of these Specifications, will be paid for at
the rate per unit of measurement for each of the pay items included in the Bills of Quantities, which payment
will be full compensation for all works and requirements prescribed in this Section of these Specifications.
No traffic control devices that are delivered to or removed from the Site without approval of the Engineer will
be considered for payment.
1809.02.2
Construction Signs, Vertical Panels, Barricades, Cones, Drums and Warning Lights
Rates for Construction Signs, Vertical Panels, Barricades, Cones, Drums and Warning Lights etc. shall also
include for, but not be limited to: supply, installation, loading and unloading, positioning and repositioning
within an area or locality, transporting, storage and removal on completion, and all fixings, posts, temporary
foundations, ballast, regular cleaning, maintenance, replacement of lost, stolen, damaged or defective items,
and all associated labour, material and equipment requirements.
1809.02.3
Temporary Lighting
Rates for Temporary Lighting shall also include, but not by way of limitation, any necessary generators with
fuel, spares and maintenance, lamps and cut-outs for standards supplied by the Ministry of Electricity and
Water and replacement lamps as and when required for all standards.
1809.02.4
Temporary Traffic Signals
Rates for the Temporary Traffic Signal installation for each particular junction shall also include for, but not
be limited to, repositioning existing equipment, supplying, installing and reinstalling additional equipment
including all cabling, ductwork, controller foundations and the like to maintain an approved traffic signal
installation until such time as the permanent signal installation is operational. Rates shall also include for
removal of all existing and temporary equipment and all such other works as are required in accordance with
the Contract Documents to maintain the approved signal control system for all detour and traffic management
stages at the particular junction.
1809.02.5
Detours
In addition to the requirements of Clause 1809.02.1 herein, payment for Detours shall also include for
necessary field surveys, preparation of Construction drawings, liaison and gaining approvals from the
Engineer/MOI and the Relevant Authorities and all other things necessary to provide the Detours. Payment
shall also include for the recovery and stockpiling of all asphaltic materials as specified.
No claim for additional costs or extension of time will be allowed consequent to approval of alternative
layouts for Detours proposed by the Contractor.
1809.02.6
Portable Energy Absorbing Terminal (E.A.T.) Systems
Payment for provision and installation of portable E.A.T. systems shall be at the rates in Section 18 of the
Bills of Quantities which rates shall include for detailed design submission, supply and installation of the
complete system (including all necessary materials and anchor systems), labour, tools, equipment and
appurtenances and for supplying installation and maintenance manuals to the Engineer as specified herein.
Payment for removal and reinstallation of portable E.A.T. systems from one location to another within the
limits of this Contract shall be at the rates shown in the Bills of Quantities, which rates shall include for all
materials, labour, tools, equipment, loading, hauling, unloading and appurtenances required to remove and
reinstall the portable E.A.T. system, complete, in a new location as shown on the approved drawings or as
directed by the Engineer.
18-20
SECTION 18
MAINTENANCE AND PROTECTION OF TRAFFIC
1809.03
Items in the Bill of Quantities
PAY ITEM
DESCRIPTION
UNIT OF MEASUREMENT
1809.1
Construction Signs
sq.m
1809.2
Vertical Panels
sq.m
1809.3
Barricades
nr
1809.4
Cones
nr.
1809.5
Drums
nr
1809.6
Flashing Arrow Boards
nr/Days
1809.7
Temporary Thermoplastic Broken and Solid
m
Lines Traffic Markings (width) (color)
(application / removal/reapplication)
1809.8
Temporary Reflectorised Broken and solid linesTraffic
m
1809.9
Temporary Tape Markings (width)
1809.10
Raised Pavement Markers (type, installed/removed/reinstalled) nr
1809.11
Temporary Metal beam Guardrail
Markings (width) (color) (application / removal /reapplication)
m
m
(provided & installed/ provided & installed as replacement/
removed and re-installed)
1809.12
Temporary Concrete Barrier
m
(provide by the Contractor/ provided by MPW/provided
by the Contractor as replacement/ provided by MPW as
replacement/ removed and re-installed)
1809.13
Warning Lights (Per Type)
nr
1809.14
Temporary Lighting (Per Type)
nr
(provided by the Contractor/ provided by MEW/ provided
by the Contractor as replacement/ provided by MEW as
replacement/ removal and reinstallation)
1809.15
Temporary Traffic Signal (Per Junction)
LS
1809.16
Detours (Per Type)
sq.m
1809.17
Diversions
nr
1809.18
Dust Control (For Detours Only)
cu.m
1809.19
Cross-Drainage
m
1809.20
(pipe dia./ initial installation/re-use)
Portable EAT Systems (Per Type)
nr
(provided and installed/ removed and reinstalled)
18-21