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SUMMARY:STRUCTURED FLEXIBLE TRANSIT SYSTEMS FOR LOW DEMAND AREAS
DTSTART:20150424T121500
DTEND:20150424T131500
DTSTAMP:20260501T165340Z
UID:ac8fea119c731dd8acdee854aadef69a84335ba783696176ce4ee4be
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Dr Yanfeng Ouyang\, Associate Professor University of Il
 linois at Urbana-Champaign (UIUC)\, USA\nPublic transportation is often vi
 ewed as a means to address congestion in urban areas.  However\, it also 
 serves another equally important societal function: providing mobility to 
 those who lack access to alternative modes of transportation.  Traditiona
 lly\, public transit networks contain fixed bus routes and predetermined b
 us stations.  Such systems are often found unaffordable and even inaccess
 ible in areas and/or time periods with low travel demand. This talk focuse
 s on alternative “structured” flexible-route transit systems\, in whic
 h each bus is allowed to travel across a predetermined area to serve passe
 ngers\, while these bus service areas collectively form a hybrid “grand
 ” structure that resembles hub-and-spoke and grid networks. We analyze t
 he agency and user cost components of this proposed system in idealized sq
 uare cities and seek the optimum network layout\, service area of each bus
 \, and bus headway\, to minimize the total system cost.  They compare the
  performance of the proposed transit system with that of comparable system
 s (e.g. fixed-route transit network and taxi service)\, and show how each 
 system is advantageous under certain passenger demand levels.  It is foun
 d out that under low-to-moderate demand levels\, the proposed flexible-rou
 te system has the lowest system cost. At the end of the talk\, some ongoin
 g extensions of the proposed transit system will be briefly discussed.\nBi
 o : Yanfeng Ouyang is Associate Professor\, P.F. Kent Endowed Faculty Scho
 lar of Civil and Environmental Engineering\, and D.B. Willett Faculty Scho
 lar at the University of Illinois at Urbana-Champaign (UIUC). He received 
 his Ph.D. in civil engineering from the University of  California at Berk
 eley in 2005. His research mainly focuses on transportation and logistics 
 systems\, infrastructure systems\, traffic flow theory\, and applications 
 to energy\, sensor\, and agricultural systems. He currently serves as a De
 partment Editor of IIE Transactions\, an Area Editor of Networks and Spati
 al Economics\, an Associate Editor of Transportation Science\, an Associat
 e Editor of Transportmetrica B\, and a Guest (Co-)Editor of Transportation
  Research Part B\, Journal of Intelligent Transportation Systems\, and the
  International Journal of Rail Transportation. He is on the editorial advi
 sory board of Transportation Research Part B and the Journal of Infrastruc
 ture Systems.  He received a Faculty Early Career Development (CAREER) Aw
 ard from the U.S. National Science Foundation in 2008\, a Walter L. Huber 
 Research Prize from the American Society of Civil Engineers in 2015\, a Hi
 gh Impact Project Award from the Illinois Department of Transportation in 
 2014\, an Engineering Council Outstanding Advisor Award from UIUC in 2014\
 , a Xerox Award for Faculty Research from UIUC in 2010\, and a Gordon F. N
 ewell Award from Berkeley in 2005.
LOCATION:GC B3 30 http://plan.epfl.ch/?lang=fr&room=GCB330
STATUS:CONFIRMED
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