Estimation of travel time on urban networks with midlink sources and sinks
This paper presents a methodology for estimation of average travel time on signalized urban networks by integrating cumulative plots and probe data. This integration aims to reduce the relative deviations in the cumulative plots due to midlink sources and sinks. During undersaturated traffic conditions, the concept of a virtual probe is introduced, and therefore, accurate travel time can be obtained when a real probe is unavailable. For oversaturated traffic conditions, only one probe per travel time estimation interval—360 s or 3% of vehicles traversing the link as a probe—has the potential to provide accurate travel time.
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|Item Type:||Journal Article|
|Keywords:||Data Integration , Estimating, Oversaturation (Traffic Flow), Traffic Signal Control Systems, Travel Time, Undersaturated Conditions (Traffic), Urban Highways, Virtual Probe Vehicle|
|Subjects:||Australian and New Zealand Standard Research Classification > BUILT ENVIRONMENT AND DESIGN (120000) > URBAN AND REGIONAL PLANNING (120500) > Transport Planning (120506)|
|Divisions:||Current > QUT Faculties and Divisions > Science & Engineering Faculty|
|Copyright Owner:||Copyright 2009 U.S. National Research Council, Transportation Research Board|
|Deposited On:||06 Oct 2010 22:40|
|Last Modified:||16 Aug 2012 02:55|
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