Effectiveness of VMS Using Empirical Loop Detector Data |
Levinson, D and Huo, Hong (2003), Effectiveness of VMS Using Empirical Loop Detector Data presented at Transportation Research Board Conference, January 12 – 16 2003 Washington DC (Session 565) |
Abstract: The effectiveness of Variable Messages Signs (VMS) on route
guidance is assessed by a discrete probit choice model that estimates
the proportion of vehicles that diverts to an alternative routes given
the characteristics of different messages. A before–and–after
study is also conducted to quantitatively evaluate the network wide reduction
of travel time and total delay of VMS systems. We find that VMS has no
obvious effect on reduction of travel time, but can reduce the total delay.
Keywords: Variable message signs (VMS), Route Choice, Diversion Behavior, Cost Benefit Analysis |
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