时间：12月27日上午10:00
地点：土木楼520会议室
讲座人：Dr. Jiaqi Ma (Leidos, Inc)
Research Seminar Topic:
Smart Transportation Systems with Connected Automated Vehicles
Speaker
Dr. Jiaqi Ma (Leidos, Inc)
Saxton Transportation Operations Lab
Turner-Fairbank Highway Research Center, McLean, VA, USA
Abstract
Advanced connected automated vehicle technologies enable us to modify driving behavior and precisely control vehicle trajectories, which have been greatly constrained by human limits in existing manually-driven highway traffic. In order to maximize benefits from these technologies on highway traffic management, vehicle trajectories need to be 1) controlled at the individual level and 2) coordinated collectively in a stream of traffic. The first part of the seminar introduces a shooting heuristic algorithm for constructing feasible trajectories for a stream of vehicles considering realistic constraints including vehicle kinematic limits, traffic arrival patterns, car-following safety, and signal operations. A customized optimization framework isalso introduced for identifying a stream of vehicle trajectories that yield the optimum traffic performance measures on mobility, environment and safety. The seminar also introduces other major projects and field experiments with connected automated vehicles conducted at the Turner-Fairbank Highway Research Center at the Federal Highway Administration, including speed harmonization, eco-approach and departure and cooperative lane change and merge.
Short Bio
Dr. Jiaqi Ma is a Research Scientist and Project Manager with Leidos, Inc., working at the Saxton Transportation Operations Lab of the FHWA Turner Fairbank Highway Research Center. He received his Ph.D. and M.S. degrees from the Department of Civil and Environmental Engineering at the University of Virginia, and M.S. and B.S. degrees from the School of Civil Engineering at the Beijing Jiaotong University, China. His areas of expertise include connected automated vehicles, Intelligent Transportation Systems, traffic modeling and simulation, network optimization, planning for operations, travel demand forecasting, and data mining. He has managed and participated in many research projects funded by USDOT and state DOTs, covering a wide range of areas including vehicle automation-based Speed Harmonization, Cooperative Adaptive Cruise Control, bottleneck identification and mitigation, and Benefit/Cost analysis of Traffic Incident Management Strategies, etc. He is a Member of the TRB Standing Committee on Vehicle-Highway Automation, a member of the TRB Subcommittee on Travel Time Speed and Reliability, and a member of the American Society of Civil Engineers.