RiskSMART – Infrastructure Design
Session outline
1.
Introduction
2.
Comparison with Brisbane City Plan 2000
3. Purpose and role of Infrastructure design planning
scheme policy
4. Content of the Infrastructure design planning scheme
policy
5.
Summary
Introduction
• Located in Schedule 6 of Brisbane City Plan 2014
• Drafted in accordance with Queensland Planning Provisions
• Supersedes a large proportion of the current Subdivision and
Development Guidelines, e.g. infrastructure design
• Parts of the guidelines not covered by the Infrastructure
design planning scheme policy (IDPSP) will either be covered
by a new development code within the Brisbane City Plan
2014, e.g. Flood affected land, or contained within a new
manual, e.g. processes for asset handover
• Excludes water and sewer standards (QUU)
Infrastructure design planning scheme
policy
• IDPSP contains thirteen chapters ranging from road and
stormwater design, streetscape, structures, parks, riverside
facilities, public toilets etc.
• Supersedes the design components currently located within
the Subdivision & Development Guidelines (S&D Guidelines).
The Queensland Planning Provisions (QPP) identifies
requirements to be included in planning scheme
• Any of this infrastructure that becomes a Brisbane City
Council asset is required to be designed and constructed in
accordance with the IDPSP (also some standards for
infrastructure that will be privately owned)
Infrastructure design planning scheme
policy
• Contains references to many Brisbane City Council standard
drawings (being updated for Brisbane City Plan 2014 go-live)
• Uses industry standards in many cases
• Excludes water and sewer standards—post 1July 2014 will be
assessed by QUU
• For constructed assets the handover process will be
contained within a manual that sits outside the scheme. Part
D of S&D Guidelines to be used in the interim.
• Inclusion of dual occupancy category
Infrastructure design planning scheme
policy
 Chapter 2
 gives broad overview of transport network including road, freight, bicycle and streetscape
 Chapter 3
 minor and major road types have been reviewed
 some changes to current types (e.g. minor road now considered to take up to 6000vpd)
 sets the design standards for various road types
 includes elements such as on road bicycle requirements, carriageway and verge widths, wildlife
movement. Pavement design requirements have changed
 Chapter 4
 pathway design outside the road corridor
 requirements for pathways not located within the road reserve, e.g. bicycle and / or pedestrian
pathways
 Prescribed tidal work
Roads subject to Light Traffic Loadings
Granular Pavements Fig 3.5.5.1.1a
DESIGN CHART FOR ROADS SUBJECT TO LIGHT TRAFFIC
0
50mm C320 or
Mulitgrade Asphalt
25mm C170 Asphalt
25mm C170 Asphalt
100mm of Class 1 Base Gravel
100mm of Class 1 Base Gravel
100
100mm of Class 2 Sub - Base Gravel
100mm of Class 2 Sub - Base Gravel
200
CBR 10
300
CBR 7
400
CBR 5
1.00E+05
Traffic Loading, ESA
5
9 x 10 5 ESA
4
600
1.00E+04
5.0 x 10 ESA
1.5 x 10 5 ESA
CBR 4
500
4 x 10 ESA
Thickness of Pavement, mm
50mm Mulitgrade Asphalt
CBR 3
1.00E+06
Infrastructure design planning scheme
policy
• Chapter 5
• contains streetscape requirements from neighbourhood plans as well as centre design manual
• Chapter 6
• Covers design requirements for public art installations
• Includes requirements for visibility and position, materials, structural, lighting, installation and
maintenance
• Chapter 7
• covers hydrology/hydraulics, design standards, sets guidelines for when on-site detention is required,
specifics on lawful point of discharge, road drainage, open and natural channel design, disposal of
property drainage, easement requirements, basement drainage, pumped systems, water quality
(refers to Queensland Urban Drainage Manual where necessary)
• includes simplified methodology for calculating detention storage for sites <2Ha
• adopted % annual exceedance probability terminology rather than average recurrence interval
• changes to inter-allotment drainage
Infrastructure design planning scheme
policy
Table 7.2.3.A changes due to increase in average size roof area
Infrastructure design planning scheme
policy
Infrastructure design planning scheme
policy
• Chapter 8 Structures
• Requirements for bridges, culverts, tunnels, earth retaining structures, water
access structures, sea and river walls
• Key reference is AS5100 Bridge Design
• Chapter 9 Public utilities
• Standards for street lighting, electricity services, telecommunications
(including Council telecommunication conduits) and traffic signals
• Chapter 10 Parks
• Requirements for park infrastructure, including planting, pathways, lighting,
furniture, drinking fountains, public toilets, shelter structures, playgrounds and
recreation facilities (e.g. sports ovals, skate board parks, dog off-leash areas),
signage, public art, emergency vehicle access
Infrastructure design planning scheme
policy
• Chapter 11
• Public toilets
• Location and design
• Chapter 12
• Public riverside facilities
• Supersedes existing Public Riverside Facilities Design and Maintenance Manual (incorporates the
majority of its content)
• Covers revetment walls, material selection, pedestrian and bicycle pathways, structures over the
river, balustrading and handrails, furniture (e.g. seating, shade structures), lighting, planting, signage
and public art
• Design life
• Chapter 13
• Community facilities
• Sets the desired standards of service for community facilities, e.g. halls, libraries, public swimming
pools
Infrastructure design planning scheme
policy – benefits
• Improved quality of constructed assets
• Incorporates all development standards within the planning
scheme which allows for greater policy transparency and
ease of reference
• Provides a head of power for our design standards
• Allows for hyper-linking to external documents such as
Queensland Urban Drainage Manual, Queensland Urban
Traffic Control Devices, AUSTROADS
• Provides more clarity on requirements than current
guidelines
Infrastructure design process
• Check overlay codes (Part 8.2) for implications on
infrastructure provision e.g. Road hierarchy overlay code,
Bicycle overlay code, Biodiversity overlay code, etc.
• Check secondary codes (Part 9.4) such as Stormwater code,
Infrastructure design code, Transport, access, parking and
servicing code implications
• Performance outcomes within these codes require things such
as roads, stormwater, verges, streetscape, footpaths, bike
paths, water, sewerage, public utilities, etc. to be provided
Summary
• IDPSP Incorporates all development standards within the
planning scheme which allows for greater policy transparency
and ease of reference
• Provides a head of power for our design standards to improve
quality of constructed assets.
• Provides more clarity on requirements than current guidelines
• Consistent with other local government areas (QPP
compliant)
• Uses industry standards where possible