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K. Ejiri¹, Y. Suda¹, D. Yamaguchi², M. Ueda³, T. Maeoka³ and T. Nishino⁴

¹Katayanagi Advanced Research Institute, Tokyo University of Technology, Hachioji, Japan
², National Traffic Safety and Environment Laboratory, Japan
³, Hiroshima Electric Railway Co., Ltd., Japan
⁴, Chuden Engineering Consultants, Japan

doi:10.4203/ccc.15.21.7

K. Ejiri, Y. Suda, D. Yamaguchi, M. Ueda, T. Maeoka, T. Nishino, "Field Verification of Public Transport Priority System Functions Using Intelligent Transport Systems in Hiroshima City", in J. Pombo, (Editor), "Proceedings of the Seventh International Conference on Railway Technology: Research, Development and Maintenance ", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 15, Paper 21.7, 2026, doi:10.4203/ccc.15.21.7

Keywords: public transportation priority system, intelligent transport systems, traffic signal control, tram, bus, field operational test.

Abstract

This study verifies the functions of a public transport priority system using intelligent transport systems under real traffic conditions in Hiroshima City. On March 12, 2025, a test run was conducted at the Sendamachi 3-chome intersection, focusing on two of the six use cases defined in SIP Phase 3: driver pre-emptive deceleration support using signal information, and intersection passage smoothing support through signal modifications (extending green time/shortening red time). The results confirmed correct operation of vehicle-passage detection via virtual beacons, public transport priority system control for green extension and red shortening, and a driver-facing indicator showing whether public transport priority system control was available. At the same time, the results revealed the need for advance notification to drivers regarding whether public transport priority system control would be executed. Based on these findings, we will proceed with trials in a model area as technical verification toward further advancement of public transport priority system.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 15 PROCEEDINGS OF THE SEVENTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 21.7 Field Verification of Public Transport Priority System Functions Using Intelligent Transport Systems in Hiroshima City K. Ejiri¹, Y. Suda¹, D. Yamaguchi², M. Ueda³, T. Maeoka³ and T. Nishino⁴ ¹Katayanagi Advanced Research Institute, Tokyo University of Technology, Hachioji, Japan ², National Traffic Safety and Environment Laboratory, Japan ³, Hiroshima Electric Railway Co., Ltd., Japan ⁴, Chuden Engineering Consultants, Japan doi:10.4203/ccc.15.21.7 Full Bibliographic Reference for this paper K. Ejiri, Y. Suda, D. Yamaguchi, M. Ueda, T. Maeoka, T. Nishino, "Field Verification of Public Transport Priority System Functions Using Intelligent Transport Systems in Hiroshima City", in J. Pombo, (Editor), "Proceedings of the Seventh International Conference on Railway Technology: Research, Development and Maintenance ", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 15, Paper 21.7, 2026, doi:10.4203/ccc.15.21.7 Keywords: public transportation priority system, intelligent transport systems, traffic signal control, tram, bus, field operational test. Abstract This study verifies the functions of a public transport priority system using intelligent transport systems under real traffic conditions in Hiroshima City. On March 12, 2025, a test run was conducted at the Sendamachi 3-chome intersection, focusing on two of the six use cases defined in SIP Phase 3: driver pre-emptive deceleration support using signal information, and intersection passage smoothing support through signal modifications (extending green time/shortening red time). The results confirmed correct operation of vehicle-passage detection via virtual beacons, public transport priority system control for green extension and red shortening, and a driver-facing indicator showing whether public transport priority system control was available. At the same time, the results revealed the need for advance notification to drivers regarding whether public transport priority system control would be executed. Based on these findings, we will proceed with trials in a model area as technical verification toward further advancement of public transport priority system. download the full-text of this paper (PDF, 1493 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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