Integrating Business Processes to Improve Travel Time Reliability (2011) / Chapter Skim
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Pages 61-71
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From page 61... ...
Many local agencies within the Phoenix metropolitan area operate independent traffic signal management systems; many also use CCTV cameras and DMS and operate web-based traveler information systems. Agencies within the AZTech partnership include Arizona DOT, Maricopa County DOT, the Maricopa Association of Governments, Valley Metro/Regional Public Transportation61Authority, several cities, and state and local law enforcement and emergency response agencies.
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From page 62... ...
Maricopa County DOT initiated the development of the RADS database, and Arizona DOT is a key partner in operating, maintaining, and enhancing the capabilities of that system. Arizona DOT is responsible for operating and managing stateowned transportation facilities, which includes urban area freeways and rural interstate and highway corridors.
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From page 63... ...
The RADS database has been configured to produce a data set suitable to transmit to other systems, as well as to be viewed by operators at TMCs to ascertain potential impacts to streetnetworks and initiate an appropriate response from the city and county crews, which could include maintenance support for incident cleanup or specialized response teams to support emergency traffic management near a major incident. The RADS receives updated information from the CAD system every minute, and information that is sent to TMCs or traveler information systems is updated accordingly.
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From page 64... ...
As part of this MOU, data sharing parameters were outlined, including recognition by transportation agencies that they would be able to access a filtered data feed about arterial incidents, and recognition by Phoenix Fire that incident data provided to RADS would be shared with several external entities. Types of Agencies Involved Arizona DOT and Maricopa County DOT are the primary operating and maintaining agencies of the RADS database.
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From page 65... ...
Arizona DOT estimates that there are 400 incident messages more per month broadcast on 511 and www.az511.gov with the addition of the Phoenix Fire data feed. Benefits Maricopa County DOT and Arizona DOT have indicated that the data links and information exchanges enabled throughRADS provide for significantly more operations and traveler information data than was previously collected.
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From page 66... ...
California: San Pablo Avenue Signal Retiming Project The San Pablo Avenue Corridor is one of three main arterial corridors identified as part of the SMART Corridor Program. Retiming on the corridor was funded through the Metropolitan Transportation Commission (MTC)
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From page 67... ...
The East Bay SMART Corridor Program includes three major arterial corridors in the eastern portion of the San Francisco Bay area with various stakeholders, including ACCMA. ACCMA was established in 1995 and has been heavily involved with the San Pablo Avenue Corridor Retiming project.
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From page 68... ...
The consultant also coordinates with transit agencies that operate on the corridor for transit signal priority, if included in the project. The consultant develops recommendations for the revised signal timing plans and submits the timing plans to the project team for comments.
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From page 69... ...
The strong relationships developed through these regularly scheduled meetings paved the way for successful partnerships and well-developed timing plans for the San Pablo Avenue corridor that passes through various jurisdictions. • The consultant submits the signal timing plans to each of the local agencies involved.
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From page 70... ...
Benefits The RSTP and SMART Corridor programs provide several benefits in addition to the 35:1 benefit-cost ratio previously stated. Several agencies with limited engineering staff have access to funds and proven consultants to assist in designing and implementing signal timing plans.
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From page 71... ...
Analysis and Research Observations The MTC RSTP helped provide assistance and expertise for retiming traffic signals. MTC has retained a large pool of consultants for the signal timing projects.
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