Transit signal priority in a connected vehicle environment: User throughput and schedule delay optimization approach

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openAccess
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Conference article in proceedings
Date
2020-11-03
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Language
en
Pages
6
252-257
Series
2020 Forum on Integrated and Sustainable Transportation Systems (FISTS)
Abstract
Transit signal priority (TSP) is a common strategy to improve bus right-of-way at signalized intersections. However, TSP systems have several challenges, such as negative externalities for non-transit users, and handling conflicting priority requests. Considering recent advances in connected vehicle technology, we propose a user-based signal priority strategy (UST) to facilitate bus movement at intersections while minimizing adverse effects to non-transit users. Additionally, we extend UST by minimizing bus scheduled delay (UST-SD) to compensate bus delay that is caused by network congestion. We compare UST and UST-SD with a conventional TSP ring barrier controller (RBC) at an isolated signalized intersection in a microscopic simulation environment. The findings show that the proposed strategy improves user and vehicle performance measures while providing priority for buses.
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Mohammadi, R, Roncoli, C & Mladenovic, M N 2020, Transit signal priority in a connected vehicle environment: User throughput and schedule delay optimization approach . in 2020 Forum on Integrated and Sustainable Transportation Systems, FISTS 2020 ., 9264898, IEEE, pp. 252-257, IEEE Forum on Integrated and Sustainable Transportation Systems, Delft, Netherlands, 03/11/2020 . https://doi.org/10.1109/FISTS46898.2020.9264898