UDOT Signal Performance Metrics: New and Upcoming Metrics

Mackey, Jamie

doi:10.5703/1288284316023

Cited by 1 publication

(2 citation statements)

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“…Requests Received. This measure is simply the number of requests received in a user-defined time period (16). It can be used to help agencies understand if the buses are sending TSP requests successfully and to confirm that they are being registered at the traffic signal.…”

Section: System Diagnosis Metricsmentioning

confidence: 99%

“…There are also some important references that focus on evaluation of TSP system impacts using field observed traffic data, more advanced traffic signal controller data, and microsimulation (13)(14)(15)(16)(17). This brief review of ATSPM research reveals an opportunity for practitioners and researchers alike to better understand how they can be used to advance bus priority.…”

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confidence: 99%

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Use of High-Resolution Signal Controller Data to Measure Transit Signal Priority Performance: A Case Study in the Boston Region

Jackson,

Huang,

Koonce

et al. 2023

Transportation Research Record: Journal of the Transportation R

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Automated traffic signal performance measures (ATSPMs) have been developed to organize data within a traffic signal, which will then be used to evaluate and monitor signal timing strategies. Past research has summarized the use of ATSPMs for performance-based management of a traffic signal system. The National Cooperative Highway Research Program Research Report 954 focused on many measures useful for general traffic, but did not consider transit agencies as specific stakeholders. ATSPMs do provide insights into measuring the number of preemption events, and the percentage of transit vehicles arriving on green, but additional information is needed to determine the effectiveness of transit signal priority or other transit preferential treatment strategies. This paper proposes a method for evaluating transit performance at signalized intersections more fully using the high-resolution data available within modern traffic signal controllers. The addition of transit-specific inputs within the ATSPM enumerations is used to produce transit-specific signal performance measures designed to be useful to practitioners. The methodology can be followed by other agencies seeking to enhance the capabilities of existing automatic vehicle location systems to further describe the performance at each signalized intersection. By incorporating transit into the ATSPM system, an agency can better assess the delay of buses, which can contribute to schedule adherence, on-time performance, and overall bus service. The methodology is presented as a prototype for further development and adaptation to individual agency objectives and data sources.

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Section: System Diagnosis Metricsmentioning

confidence: 99%

mentioning

confidence: 99%