Estimating freeway travel time and its reliability using radar sensor data

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dc.contributor.author Lu, Chaoru
dc.contributor.author Dong, Jing
dc.contributor.author Dong-O'Brien, Jing
dc.contributor.department Civil, Construction and Environmental Engineering
dc.date 2018-12-22T00:38:07.000
dc.date.accessioned 2020-06-30T01:12:47Z
dc.date.available 2020-06-30T01:12:47Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 2017
dc.date.issued 2018-01-01
dc.description.abstract <p>Travel time and its reliability are intuitive system performance measures for freeway traffic operations. This paper proposes a method to estimate travel times based on data collected from roadside radar sensors, considering spatially correlated traffic conditions. Link-level and corridor-level travel time distributions are estimated using these travel time estimates and compared with the ones estimated based on probe vehicle data. The maximum likelihood estimation is used to estimate the parameters of Weibull, gamma, normal, and lognormal distributions. According to the log-likelihood values, lognormal distribution is the best fit among all the tested distributions. Corridor-level travel time reliability measures are extracted from the travel time distributions. The proposed travel time estimation model can well capture the temporal pattern of travel time and its distribution.</p>
dc.description.comments <p>This is an Accepted Manuscript of an article published by Taylor & Francis as Lu, Chaoru, and Jing Dong. "Estimating freeway travel time and its reliability using radar sensor data." <em>Transportmetrica B: Transport Dynamics</em> 6, no. 2 (2018): 97-114. DOI: <a href="https://dx.doi.org/10.1080/21680566.2017.1325785" target="_blank">10.1080/21680566.2017.1325785</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/ccee_pubs/204/
dc.identifier.articleid 1201
dc.identifier.contextkey 13475226
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ccee_pubs/204
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/13853
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ccee_pubs/204/2018_DongJing_EstimatingFreeway.pdf|||Fri Jan 14 22:24:38 UTC 2022
dc.source.uri 10.1080/21680566.2017.1325785
dc.subject.disciplines Civil Engineering
dc.subject.disciplines Transportation Engineering
dc.subject.keywords Probe vehicles
dc.subject.keywords queue spillback
dc.subject.keywords radar sensor data
dc.subject.keywords travel time reliability
dc.title Estimating freeway travel time and its reliability using radar sensor data
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 02eacfea-376d-45b0-a048-1b6d00cfbf26
relation.isOrgUnitOfPublication 933e9c94-323c-4da9-9e8e-861692825f91
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