IMPACT OF DYNAMIC MESSAGE SIGNS ON OCCURRENCE OF ROAD ACCIDENTS

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dc.contributor.advisorHaghani, Alien_US
dc.contributor.authorNorouzi, Azadehen_US
dc.contributor.departmentEnvironmental Science and Technologyen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2012-10-10T11:36:34Z
dc.date.available2012-10-10T11:36:34Z
dc.date.issued2012en_US
dc.description.abstractDynamic Message Signs (DMS) are key components of Advanced Traveler Information Systems to manage transportation networks, reduce congestion and improve safety through providing motorists with real-time information regarding downstream traffic conditions. While DMSs are intended to improve efficiency and safety of road networks, little has been done to study the effect of the signs on driver safety and their localized safety impacts. This thesis employs ground truth data as the basis to investigate the issue in State of Maryland in a four-year period (2007-2010). The results show no significant difference between the accident pattern in the proximity of DMSs and the onward adjacent segments. On-and-off study is also conducted on DMS operation status (on/off). The results converge with the previous analysis suggesting that there is no meaningful relationship between occurrence of accidents and presence of DMSs. Besides, statistical analysis on DMS characteristics and accidents in impact areas are performed.en_US
dc.identifier.urihttp://hdl.handle.net/1903/13090
dc.subject.pqcontrolledCivil engineeringen_US
dc.subject.pqcontrolledTransportation planningen_US
dc.subject.pquncontrolledDatabase Managementen_US
dc.subject.pquncontrolledDynamic Message Signsen_US
dc.subject.pquncontrolledGISen_US
dc.subject.pquncontrolledRoad Accidentsen_US
dc.subject.pquncontrolledSASen_US
dc.titleIMPACT OF DYNAMIC MESSAGE SIGNS ON OCCURRENCE OF ROAD ACCIDENTSen_US
dc.typeThesisen_US

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