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- W652492443 abstract "The paper presents the findings of a field evaluation of transit signal priority (TSP) strategies on transit vehicle travel time and intersection delay. The U.S. Route 1 (Richmond Highway) in Northern Virginia, where green extension TSP logic is deployed, is used as the case study network. The study corridor extends over 12.9 km (8.06 mi) and covers a total of 27 signalized intersections. The field evaluation is conducted using Global Positioning System (GPS) receivers that are Wide Area Augmented System (WAAS) enabled and installed on a sample of transit vehicles. The study demonstrates that portable WAAS-enabled GPS receivers provide accurate, reliable, and cost effective data that are superior to traditional travel survey data because they provide data at a second-by-second level of resolution. The study demonstrates that overall travel time improvements in the order of 3 to 6 percent are observed for TSP-operated buses. However, the results also demonstrate that in some cases green-extension TSP can increase transit-vehicle travel times by 2.5 percent during congested periods. The study demonstrates that the dwelling times are not affected by TSP operations and that TSP strategies can reduce transit vehicle intersection delay by as much as 23 percent. Furthermore, the study demonstrates that the benefits associated with TSP are highly dependent on the roadway level of congestion and are maximized under moderate to low levels of congestion." @default.
- W652492443 created "2016-06-24" @default.
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- W652492443 date "2006-01-01" @default.
- W652492443 modified "2023-09-24" @default.
- W652492443 title "Evaluation of Green Extension Transit Signal Priority Strategies Using Portable GPS Receivers" @default.
- W652492443 hasPublicationYear "2006" @default.
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