标题：An
Optimization Model for Staggered Bottleneck Congestion with Heterogeneous
Commuters
主讲人：Dr. Liu
Yang, Department of Industrial and Systems Engineering, National University of
Singapore, Singapore
邀请人：涂辉招副教授
时间：2015年12月17日（星期四）10:00-11:15
地点：tyc8722太阳集团城103报告厅
主讲内容简介：
The traffic
congestion in the morning rush hours is mainly caused by home-to-work trips
which are constrained by the working hour schemes imposed by employers. This
study extends Vickrey’s bottleneck model and examines the temporal evaluation
of the staggered congestion under the flexible working hour scheme, i.e.,
employees can choose their work start time according to their needs. Along the
line of the semi-analytical approach in Liu et al. (2015), an equivalent
optimization model with capacity constraints is proposed here for solving the
dynamic user equilibrium of heterogeneous commuters. The proposed formula
admits symmetric Hessian matrix which allows us to prove the uniqueness and the
stability of long-run equilibrium. The proposed approach is used to numerically
test the redistribution work trips at user equilibrium. It can
be served as a useful tool for policy makers to estimate the congestion
reduction after implementing the flexible work arrangement, and to guide the
employers to properly stagger working hours.
主讲人简介：
Dr. Liu Yang is
currently an Assistant Professor of Department of Industrial and Systems
Engineering at National University of Singapore. She received her B.S. from
Tsinghua University, her M.S. from Hong Kong University of Science and
Technology and her Ph.D. from Northwestern University. Previously, Dr. Liu
worked as a consultant at Cambridge Systematics and provided modeling expertise
to public agencies such as Chicago Department of Transportation. Dr. Liu’s
research covers various topics in the areas of transportation system modeling
and analysis, and transportation economics. Her research interests focus in congestion
pricing, travel demand modeling and management, and shared mobility service
network design and operations. Her recent research is supported by Singapore
Ministry of Education AcRF Tier 1.
欢迎各位老师、同学积极参加同路人学术论坛！
tyc8722太阳集团城研究生会
tyc8722太阳集团城青年教师沙龙