Performance-Based Management of Traffic Signals (2020) / Chapter Skim
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Pages 191-204
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CHAPTER FOCUS Chapter 6 provides strategies to fully integrate signal performance measures into agency management practices. Across an agency, there are many potential users of signal performance measures, including traffic signal operators and maintenance staff, senior managers, planners, designers, and construction staff.
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6.1.1 CAPABILITY MATURITY MODEL (CMM) ASSESSMENT The Capability Maturity Model (CMM)
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PERFORMANCE MEASURE IMPACTS ON CMM DIMENSIONS The use of signal performance measures affects all aspects of CMM, not just the performance measurement dimension. This section summarizes how signal performance measures relate to the other three dimensions.
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planned projects. In Texas, the City of College Station was similarly able to deploy signal performance measures at the same time as a central system procurement that already had funding.
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6.2 IMPACT ON AGENCY ACTIVITIES As introduced in Chapter 1, signal performance measures can benefit traffic signal operators, but the measures can also be shared with other agency groups. This section summarizes how signal performance measures impact daily activities for all stakeholders as well as considerations for applying them as part of a performance-based management program.
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QUANTITATIVE PERFORMANCE TRACKING Agencies can develop a standard procedure for quantitatively tracking and documenting progress with agency staff, decisionmakers, and the public, potentially through a newsletter or annual update. A routine process for disseminating successes can facilitate information sharing between agencies and notify decision-makers about program activities.
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AGENCY EXAMPLE The Regional Transportation Commission (RTC) of Southern Nevada has the Freeway and Arterial System of Transportation (FAST)
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6.2.2 TRANSPORTATION PLANNING MODEL VALIDATION Signal performance measures provide a way for agencies to validate planning models. While signal performance measures can reduce the number of planning models needed to replicate existing conditions, models will still be required to test certain scenarios such as new geometry or significant traffic pattern changes.
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6.2.4 TRAFFIC OPERATIONS CONTINUOUSLY AVAILABLE DATA FOR LESS MODELING Engineers traditionally make traffic signal adjustments with the assistance of a model. Models are built to reflect existing conditions using traffic counts and field observations (typically from a single day)
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CONFIRM PUBLIC SERVICE REQUESTS Citizens often make public service requests when they notice an issue at a signalized intersection. Staff typically spend time talking with the citizen about the issue and trying to observe the issue that was reported.
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6.3 REFERENCES 1. Denney, Jr., R.W.
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Abbreviations and acronyms used without definitions in TRB publications: A4A Airlines for America AAAE American Association of Airport Executives AASHO American Association of State Highway Officials AASHTO American Association of State Highway and Transportation Officials ACI–NA Airports Council International–North America ACRP Airport Cooperative Research Program ADA Americans with Disabilities Act APTA American Public Transportation Association ASCE American Society of Civil Engineers ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials ATA American Trucking Associations CTAA Community Transportation Association of America CTBSSP Commercial Truck and Bus Safety Synthesis Program DHS Department of Homeland Security DOE Department of Energy EPA Environmental Protection Agency FAA Federal Aviation Administration FAST Fixing America's Surface Transportation Act (2015) FHWA Federal Highway Administration FMCSA Federal Motor Carrier Safety Administration FRA Federal Railroad Administration FTA Federal Transit Administration HMCRP Hazardous Materials Cooperative Research Program IEEE Institute of Electrical and Electronics Engineers ISTEA Intermodal Surface Transportation Efficiency Act of 1991 ITE Institute of Transportation Engineers MAP-21 Moving Ahead for Progress in the 21st Century Act (2012)
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TRA N SPO RTATIO N RESEA RCH BO A RD 500 Fifth Street, N W W ashington, D C 20001 A D D RESS SERV ICE REQ U ESTED Perform ance-Based M anagem ent of Traffic Signals N CH RP Research Report 954 TRB ISBN 978-0-309-67363-1 9 7 8 0 3 0 9 6 7 3 6 3 1 9 0 0 0 0
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