Research Topic
Overview - JMTR Program Group
# | Name | Ongoing Program | Historical Program |
---|---|---|---|
1 | Multi-modal mixed traffic flow modeling under connected environment | JMTR_2301 | - |
2 | Traffic signal optimization | JMTR_2107 | JMTR_2204 |
JMTR_2305 | JMTR_2021 | ||
(JMTS_2202) | JMTR_2020 | ||
JMTR_2019 |
Research Program Description
I. Multi-modal mixed traffic flow modeling
i. Joint optimization of connected bus trajectories & traffic signals (JMTR_2301)

Leveraging the advantages brought by the connected environment and fully integrating the macroscopic state of mixed traffic flow with the microscopic trajectories of connected buses, the connected bus speed and traffic signals can be integrated into macro-microscopic models of mixed traffic flow to capture traffic flow dynamics more accurately by treating connected buses as moving bottlenecks.
II. Traffic signal optimization
i. Robust time-of-day traffic signal control (JMTR_2204, JMTR_2305)

Time-of-day (TOD) fixed timing strategy can be adopted in tackling traffic demand fluctuation within the day for urban signalized intersections. This program is initiated to develop methods & models that can generate efficient TOD control plans with robust signal timings for isolated (JMTR_2204) and arterial (JMTR_2305) signalized intersections.

JMTR_2204: Joint optimization of TOD intervals and robust signal timing for isolated intersection.
Keywords: Bi-level optimization, Arrival-departure curve, BLEAQ_II algorithm, SUMO.
JMTR_2305: Joint optimization of TOD intervals and robust signal timings for network-level intersections
[1 | JMTR_2204] Jia, Y., An, C. (*), Lu, Z., & Xia, J. (2023). Joint optimization of time-of-day intervals and robust signal timing for isolated intersection. 23rd COTA International Conference of Transportation Professionals (CICTP2023), July 14-17, 2023, Beijing, China
ii. Optimization of contraflow left-turn lanes (JMTR_2107, JMTR_2020, JMTR_2019)

The contraflow left-turn lane (CLL) design provides a novel approach to alleviate congestion for those signalized intersections with heavy left-turn traffic. This program is initiated to develop models and methods to optimize traffic signal control schemes for isolated, arterial, and network levels of signalized intersections with CLL.

JMTR_2019: Traffic signal optimization for the isolated intersection with CLL
Keywords: queue accumulation polygon, Genetic algorithm.
JMTR_2020: Traffic signal optimization for arterial intersections with CLL
Keywords: Multi-objective sustainability, NSGA-II.
JMTR_2107: Traffic signal optimization for grid-level
intersections with CLL
Keywords: Nonlinear programming.
[1 | JMTR_2020] Chen, X. (*), & Jia, Y. (2021). Sustainable traffic management and control system for arterial with contraflow left-turn lanes. Journal of Cleaner Production, 280, 124256.
[1 | JMTR_2107] Chen, X. (*), Jia, Y. (2024). Traffic signal optimization for mitigating pollutant emissions of grid intersections with contraflow
left-turn lanes. 103rd Annual Meeting of the Transportation
Research Board (TRB 2024 Annual Meeting), January 7-11, 2024, Washington, D.C., United States.
[2 | JMTR_2020] Jia, Y., & Chen, X. (*). (2021). Pre-signal installation optimization to improve the operations of arterial management and control system with contraflow left-turn lanes. The 20th and 21st Joint COTA International Conference of Transportation Professionals (CICTP20-21), December 17-20, 2021, Xi'an, China
[3 | JMTR_2020] Jia, Y., & Chen, X. (*). (2021). Arterial management and control system with contraflow left-turn lanes: An environmentally-friendly perspective. The 20th and 21st Joint COTA International Conference of Transportation Professionals (CICTP20-21), December 17-20, 2021, Xi'an, China
[4 | JMTR_2019] Jia, Y., & Chen, X. (*). (2019). Dynamic Traffic Signal Control Optimization for the Intersection with Contraflow Left-turn Lanes. 19th COTA International Conference of Transportation Professionals (CICTP2019), July 6-8, 2019, Nanjing, China
[5 | JMTR_2019] Jia, Y., & Chen, X. (*). (2019). Traffic Signal Coordination Control Optimization for Reducing Traffic Emissions of Intersection with Contraflow Left-turn Lane. World Transport Convention (WTC2019), June 13-16, 2019, Beijing, China
# | Affiliated Program | Funding Name | Funding # | Role | Prize | Duration |
---|---|---|---|---|---|---|
1 | JMTR_2020 | National Innovation and Entrepreneurship Training Program for Undergraduates of Shaanxi Province | S201910710021 | PI | Third | 2019.7-2020.12 |
S201910710038 | PI | - | 2019.7-2020.12 | |||
2 | JMTR_2019 | National Innovation and Entrepreneurship Training Program for Undergraduates of Shaanxi Province | S201910710038 | PI | - | 2019.7-2020.12 |
# | Year | Competition | Prize | Sort | Affiliated JMTR Program |
---|---|---|---|---|---|
1 | 2021 | ’Challenge Cup’ Shaanxi Provincial College Student Competition - Academic Works | 1st | 2nd author | JMTR_2020 |
2 | 2019 | The 9th Transportation Science & Technology Competition of Chang’an University | 3rd | 1st author | JMTR_2019 |