| Note
From the Director
Making
the Case for Regional Transportation Operations Collaboration and Coordination
The
Practice of Regional Transportation Operations Collaboration and Coordination
Regional
Transportation Operations Collaboration and Coordination and the Regional ITS
Architecture Development Process
A
Self-Assessment—Where Are You in Regional Collaboration and Coordination?
Applications
of Regional Operations Collaboration and Coordination Planning for Transportation
Operations:
TRANSCOM’s Regional Approach to Operations
Southern California ITS Priority Corridor
Maryland CHART
Capital Wireless Integrated Network (CapWIN)
Baltimore Regional Operations Coordination (B-ROC)
Project
Montgomery County ATIS
Cross-Jurisdictional Signal Coordination in Phoenix
San Antonio’s Advanced Warning to Avoid Railroad
Delays (AWARD) Project
San Antonio Medical Center Corridor Project
Phoenix’s Roadway Closure and Restriction System
(RCRS)
Ventura County Fare Integration
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Cross-Jurisdictional Signal Coordination in Phoenixvii
Part of the AZTech Metropolitan Model Deployment Initiative (MMDI) effort was to coordinate traffic signals across jurisdictions in the East Valley of Phoenix. That signal integration helped form Smart Corridors that allow smooth progressions across jurisdictions.
In order to accomplish integration across jurisdictions, the East Valley Task Force (composed of transportation specialists from the five jurisdictions in Phoenix) established standards for coordination and communication among agencies and jurisdictions. A communications infrastructure was implemented to allow information flow between jurisdictions, and a regional traffic control and management plan was developed to aid integration.
The project was considered a success due to the many operational benefits achieved. These benefits include increases in average travel speeds during peak periods, decreases in number of stops, decreases in crash risks, and reductions in fuel consumption. Furthermore, interagency communication was substantially increased, allowing for a multijurisdictional system with regional goals. This coordination and cooperation is expected to have a long-range positive impact on traffic operations
in the East Valley.
 Structure
- The East Valley Task Force was formed by transportation specialists from the five jurisdictions in Phoenix to identify areas for improvement and establish standards for interagency and interjurisdictional coordination.
- Regional traffic signal coordination was achieved through careful planning and increased coordination efforts.
Processes
- The Smart Corridor project, designed to improve efficiency in the Phoenix region’s transportation system and make commuting across jurisdictions easier for travelers, is used as leverage to achieve interagency communication and coordination.
- Data collection, involving traffic counts, turning-movement data, and global positioning system satellite receivers, was done before and after signal timing changes to calculate travel time, delays, and vehicle accelerations. The data showed that the project had several operational benefits, including increased travel speed and decreased delays.
Products
- Before starting the project, the East Valley Task Force established standards for interagency coordination and developed a regional traffic control and management plan to aid in technical integration among agencies. The plan included traffic signal timing plans for the Smart Corridors and coordination procedures for traffic management between jurisdictions.
Resources
- Each of eight regions involved in the project share the development and operating costs.
- Each region benefits from maximized efficiency for travelers and increased communication among agencies. The communications infrastructure developed for the project allows sharing of real-time traffic operations information that is instrumental to the initiation and achievement of regional goals.
Performance
- Establishing standards for interagency coordination provided expected levels of regionwide performance.
- Smart Corridor components linked to the AZTech server allow information sharing among agencies and jurisdictions. Traffic signal controllers, surveillance equipment, and detection devices were installed or upgraded to allow for the collection of information, which can be shared through workstations installed at TOCs in each jurisdiction.
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vii
“Cross-Jurisdictional Signal Coordination in Phoenix and Seattle,” Lessons Learned from the Metropolitan Model Deployment Initiative—Removing Barriers to Seamless Travel on Arterial Streets, FHWA-OP-01-035, U.S. Department of Transportation, March 2001.
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