Vehicle Operating Speed on Urban Arterial Roadways

dc.contributor.authorFitzpatrick, Kayen
dc.contributor.authorDas, Subasishen
dc.date.accessioned2019-04-23T16:14:48Zen
dc.date.available2019-04-23T16:14:48Zen
dc.date.issued2019-01en
dc.description.abstractThis research explored (1) the relationship between suburban vehicle operating speed and roadway characteristics,especially the presence of bicyclists and (2) whether crowdsourced speed data could be used to estimate theunconstrained speed for a location. Both vehicle volume per lane and bicycle volume were found to be influential inaffecting average speed on lower speed urban arterial roadways. For 40.3 km/hr (25 mph) sites, an increase of 19vehicles per 15-min period would decrease average speed by 1.6 km/hr (1 mph), and an increase of more than 39bicyclists per 15-min period would decrease average vehicle speed by a similar amount. Because of the limited numberof 15-min periods with bicycle counts greater than 1, the research team also developed a model using all available 15-min periods with on-road speed data. Speed and volume data in 15-min increments for 2 weeks at nine sites wereobtained using on-road tubes and via a vendor of crowdsourced speed data. The difference between the tube data andthe crowdsourced data was calculated and called TMCS as a representation of tube (T) minus (M) crowdsourced (CS).The geometric variables that had the greatest influence on TMCS were the number of signals and the number ofdriveways within a corridor. When only including non-congested periods, weekends (Saturday or Sunday) wereassociated with the smallest TMCS.en
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/89097en
dc.language.isoenen
dc.publisherSAFE-D: Safety Through Disruption National University Transportation Centeren
dc.relation.ispartofseriesTTI-01-04en
dc.rightsCC0 1.0 Universalen
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/en
dc.subjectvehicle operating speeden
dc.subjectarterialsen
dc.subjectbicyclistsen
dc.subjectcrowdsourced dataen
dc.titleVehicle Operating Speed on Urban Arterial Roadwaysen
dc.typeReporten
dc.type.dcmitypeTexten
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