NJDOT 2009 Design Summit
Traffic Operations
How Do We Maintain Mobility?
Dennis Motiani, Director
Statewide Traffic Operations
Statewide Traffic Operations
Traffic
Management
Center
Emergency
Service
Patrol
Work Zone
Management
Advance Traveler
Information
System
ITS
Engineering
ITS
Maintenance
Centralized
Traffic Signal
Systems
Incident
Management
Statewide Traffic Management Center
Statewide Traffic Operations
Traffic
Management
Center
Emergency
Service
Patrol
Work Zone
Management
Advance Traveler
Information
System
ITS
Engineering
ITS
Maintenance
Centralized
Traffic Signal
Systems
Incident
Management
Advance Traveler Information System
Advance Traveler Information System
www.nj511.info
www.nj511.info
Advance Traveler Information System
Statewide Traffic Operations
Traffic
Management
Center
Emergency
Service
Patrol
Work Zone
Management
Advance Traveler
Information
System
ITS
Engineering
ITS
Maintenance
Centralized
Traffic Signal
Systems
Incident
Management
ITS Engineering
SCOPE
PRELIMINARY DESIGN SUBMISSION
FINAL DESIGN SUBMISSION
Use ITS web site for guideline updates.
CAN 073-1/7/09
ITS Engineering
SCOPE
• COP/Need for Proposed Devices.
• Coordination with TOC’s
• Non-programmatic detail
• Communication Alternates.
• Possible utility for DSL/Cable/Wireless
• Network will always go beyond project limits
• Coordination for NJTA connections (feasibility check)
• Early Staging /Temporary Measures.
• General Impacts to Existing ITS.
•
Any unusual system needs.
ITS Engineering
PRELIMINARY DESIGN
• Existing ITS Impact Requirements.
• TOC space availability.
• Network Requirements (even beyond project).
• Utility confirmation for DSL/Cable/WL.
• NJTA confirmation if connection.
• Non-Standard Requirements.
• Specs, Details, Test Protocols.
• Obtain Latest Standards from ITS Engineering.
• Pre-FDS approvals by ITS Engn if no PDS.
ITS Engineering
FINAL DESIGN
• Complete Fiber Diagrams.
• IP and other input from DOT-IT.
• Upgrades outside project limits.
• New and Modified ITS Details.
• Complete Material Specifications.
• Coordination with Roadway & Structural
Plans.
ITS Engineering
FINAL DESIGN (continued)
•
•
•
•
•
Estimate should separate DMS purchase $$$.
Schedules to Reflect Lead Times and Testing.
Temporary /Interim Use Requirements.
Document Systems Engineering Compliance.
Existing ITS Impact Requirements.
• Legacy or upgrade software.
• TOC block diagrams.
• Work time allowances.
While Scoping/Designing…
• CCTV and DMS viewability.
• Context Sensitive Design.
• Consideration must always be given to
maintenance.
ITS Engineering
POST FINAL DESIGN
• ITS Engineering signoff of System Engineering
Compliance.
• Provide for Construction Engineering and
Construction Inspection.
Statewide Traffic Operations
Traffic
Management
Center
Emergency
Service
Patrol
Work Zone
Management
Advance Traveler
Information
System
ITS
Engineering
ITS
Maintenance
Centralized
Traffic Signal
Systems
Incident
Management
Work Zone Management
Final Rule
Work Zone Safety and Mobility
Rule
Implementation of Updates to
23 CFR Section 630, Subpart J
Overview of the Updated Rule
Establishes requirements and provides
guidance for:
- Systematically addressing WZ safety and
mobility impacts.
- Developing strategies to help manage
these impacts.
On all FederalFederal-aid Highway Projects
Why TMPs?
Has affects on
- Safety
- Mobility
- Constructability
TMPs = more comprehensive approach to
managing WZ impacts
TMP Contents
Transportation Management Plans (TMP)
•Required on all projects
•Temporary Traffic Control Plan (TTCP)
•Transportation Operations Plan (TOP)
•Public Information Plan (PIP)
Significant Project
•TTCP, TOP and PIP Required
Non-Significant Project
•TTCP Required
•TOP and PIP Recommended
NJDOT Response
Policy No. 815
Work Zone Safety and Mobility
TMP during Planning
TMP development begins in the
project planning and scoping phase
•Involves planning and design staff
•Incorporates big picture issues
•Further details as project progresses
•Allows more accurate programming and
budgets
New Jersey Department of
Transportation
Traffic Mitigation Guidelines
New Jersey Department of Transportation
Traffic Mitigation Guidelines
Section 1 – Introduction
1.1 Purpose and Benefits of Traffic Mitigation Actions
The Department is committed to providing a network of transportation facilities that enables New
Jersey residents, workers, and visitors
to move efficiently within and through the State.
Developing and maintaining a Statewide transportation network requires that the Department
periodically upgrade and improve these facilities through construction projects. The Department’s
first priority is to complete these projects in a timely and cost-efficient manner. The Department
recognizes, however, that construction projects inconvenience motorists traveling through the
construction corridors and disrupt businesses located nearby, in some cases resulting in substantial
user costs.
New Jersey Department of Transportation
Traffic Mitigation Guidelines
•Low impact projects - traffic demands is < work
zone capacities during any time of the 24 hour day.
•Moderate impact projects - traffic demands is >
than work zone capacities for a period of 0-6 hrs
per 24 hour day.
•High impact projects - traffic demands is > work
zone capacities for 6+ hours per 24 hour day.
Low impact projects
The TM needs for low impact projects generally
can be adequately addressed by minimal and
“standard” traffic controls used routinely in
construction areas. These could include, for
example:
•Fixed signs to alert motorists to the presence of
construction activity ahead.
•Traffic cones and temporary barriers to guide
motorists through the construction area.
Moderate impact projects
Augment TM strategies used in low impact
projects with strategies such as•Construction area screening,
•Variable Message Signs,
•Reduced Travel Speeds
•Temporary Parking and Turn Restrictions
•Pavement Markings.
•Detours without additional upgrades to alternate routes.
•Modest TDM strategies such as rideshare marketing.
Moderate impact projects
•Modest public outreach targeted to residents,
businesses, and community centers in the local area
affected by the construction: for example, postings on web
sites, and fax network for employers and others.
•Construction activity restrictions/nonconstruction increases in capacity (e.g., narrow lanes) to
minimize peak period delays.
•Development of incident management plan to
reduce delays caused by accidents.
High impact projects
•Most aggressive TM strategies.
•More costly strategies could be appropriate due to the high
cumulative cost of delay and disruption.
•Temporary capital improvements might be warranted to
maintain capacity.
•Deliver information to the public-at-large and to motorists
traveling through the construction area, and to support the
needs of businesses for employees and customer access.
High impact projects
•Advanced traffic operations and control strategies,
such as ramp metering, signal adjustments, reversible
lanes, lane closure restrictions, and truck restrictions.
•Extensive public outreach to the public-at-large and
to targeted groups, including public information
meetings, brochures, news releases, media
advertising, appearances at community events, a
public information center, and a telephone hotline.
•Detours that require capital improvements to
alternate routes.
High impact projects
•Temporary capital improvements, such as
crossovers, temporary roadways, and temporary use
of shoulders and median areas to maintain capacity.
•Contracting strategies, such as A+B bidding,
contractor incentive/disincentive provisions, lane
rental provisions, and project consolidation.
•Expanded TDM strategies such as temporary transit
service, free bus service, Park & Ride lots, TDM
information, and assistance to employers.
WORK ZONE MOBILITY AND SAFETY
STRATEGIES
Traffic Management
• Demand Management
• Design Alternatives to Minimize Congestion Cost
• Alternative Project Scheduling and Phasing
• Alternative Contracting and Delivery Strategies to
Accelerate Project Completion.
Traffic Management Strategies
Smart Work Zones
Reversible lanes
Dynamic Message Signs
Travel Time and Delay Estimation System
Traffic Conditions Displayed on Internet
511 Traveler Information
Increased Incident Management Capabilities
Demand Management Strategies
Alternative Route Improvements
Alternate Mode
Mass Transit Improvements
Improved Pre-Construction Traveler
Information
Design Alternatives to Minimize
Congestion Cost Strategies
• Temporary Pavement
• Crossovers
Alternative Project Scheduling and
Phasing Strategies
• Nighttime Construction Schedules
• Full Road Closures and Detour Routes
Alternative Contracting and Delivery Strategies to
Accelerate Project Completion
Lane Rental
A+B and A+B+C Contracting
Incentives/Disincentives
Interim Completion Dates and Liquidated
Damages
Design/build
Designing Same Old Same Old
is Getting “Old”
I-295 Rancocas
Rancocas--Mt Holly Rd to RT 130
Rt. 440 over Ramp WI/WK in Edison
Rt. 9 over Main St in Woodbridge
Pavement Rehab on Rt. 42
Pavement Markings for Better Guidance
VMS Messages
DESIGN VMS MESSAGES
DEPLOYED DURING
CONSTRUCTION
IN PRELIMENARY
AND FINAL DESIGN