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Short Course of Operations Research
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Speaker: Janny Leung (University of Macau)
Part I – Public transport for smart cities
September 17, 15:30 – 17:30 with a short break
Abstract: The
idea of a smart city is one that utilizes IoT technologies and data analytics
to optimize the efficiency of city operations and
services, so as to provide a high quality of life for its
citizens. Due to reduced public funding, many public transportation systems are
already facing challenges to maintain their services. For a smart city, the
goal of public transportation is not simply the movement of people, but to
provide mobility for living. In order to provide sufficient coverage/frequency,
an integrated co-ordinated multi-modal public transportation system is needed,
leading to substantial increase in operational complexity. Environmental concerns
and the recent pandemic may also have changed work and commuting patterns in
the future. For smart cities, public transport must offer ubiquitous access,
real-time response to demand, convenience and quality service, and
energy-efficient operations. This talk will discuss the challenges in network
design, operations planning, scheduling and management of smart public
transport systems.
Part II –
Real-time re-scheduling for tramway operations
September 18, 15:30 – 17:30 with a short break
Abstract: We
study a vehicle and crew (re-)scheduling problem for a public transit system
which is subject to highly stochastic travel times and disruptions. Our
research is motivated by the operations of the tramways system in Hong Kong
which faces severe challenges because it does not run on dedicated tracks but
must share the road with vehicular traffic in heavily congested areas. We
develop a decision-support system that optimises service frequencies,
meal-break delays and overtime costs, and taking stochastic time-dependent
travel-time uncertainties into account. The efficiency and effectiveness are
evaluated via simulation. The results identify the potential benefits of
revising the schedule dynamically in real time using optimization models.
We will also
discuss bus-bridging strategies to handle major disruptions.
Place: NOVA FCT, sala Samsung
(Auditório Professor Manuel Laranjeira) do Edifício I
Registration for the short course:
https://docs.google.com/forms/d/e/1FAIpQLSeNRQUlU2JDASJ8T3Wk6_igjnGNoRyDHP085VVpnNEVJgfpLQ/viewform?usp=header
Short Bio: Janny Leung obtained an S.B. degree in
Applied Mathematics from Harvard University, an M.A. in Mathematics from Oxford
University and a Ph.D. in Operations Research from the Massachusetts Institute
of Technology. Before returning to Hong Kong in 1996, she was a faculty member
at Yale University and the University of Arizona.
Her main research interests are combinatorial
optimization, transportation logistics and operational research. In Hong Kong,
she has collaborated with local companies on projects involving workforce
scheduling, facility layout, supply chain management and public transit
planning. She has published in many academic journals, has been invited as
plenary speaker at major international conferences, and served on the editorial
boards of the leading journals in her field. Her research has been
well-supported by the National Science Foundation of USA and the Hong Kong
Research Grants Council. She is a Fellow of the Chartered Institute of
Logistics and Transport, a Fellow of the Hong Kong Institution of Engineers, a
Fellow of the Institute for Operations Research and the Management Sciences
(Informs) and a Fellow of the International Federation of Operational
Research Societies (IFORS).