题目:On Multi-Objective Stochastic User Equilibrium
主讲人:Judith Wang
时间:2015年9月24日 16:00
地点:九里校区01109会议室
内容简介:
There is extensive empirical evidence that travellers consider many ’qualities’ (travel time, tolls, reliability, etc.) when choosing between alternative routes. Two main approaches exist to deal with this in network assignment models: Combine all qualities into a single (linear) utility function, or solve a multi-objective problem. The former has the advantages of a unique solution and efficient algorithms; the latter, however, is more general, but leads to many solutions and is difficult to implement in larger systems. In the present paper we present three alternative approaches for combining the principles of multi-objective decision-making with a stochastic user equilibrium model based on random utility theory. The aim is to deduce a tractable, analytic method. The three methods are compared both in terms of their theoretical principles, and in terms of the implied trade-offs, illustrated through simple numerical examples.
主讲人简介:
Dr. Judith Wang is currently Associate Professor in Transport Engineering - Resilient Transportation, based in the School of Civil Engineering and Institute for Transport Studies at University of Leeds in the UK. She received her MSc(Eng) in Transport Planning and Engineering from University of Leeds in 1993 and PhD from Hong Kong University of Science and Technology in 2004. Prior to moving to the UK, she had worked for the University of Auckland in New Zealand for more than eight years, as a Lecturer in the Department of Civil Engineering, a Research Fellow in the Energy Centre and a Senior Research Fellow in the Department of Engineering Science. She has had an over 20 years’ career in transport planning, with considerable experience not only in academia, but also nine years of practical experience in the transport industry in Hong Kong as well as in New Zealand, specialising in modelling and planning of transport services and infrastructure. Her work experience in Hong Kong include operations planning of the Mass Transit Railway in Hong Kong and strategic planning for the new Hong Kong International Airport opened in 1998.