TRAFFIC SAFETY ASSESSMENT BY USING MICRO-SIMULATION MODELLING AND TRAFFIC CONFLICTS AT LARGE ROUNDABOUTS
Konferenční objektOtevřený přístuppeer-reviewedpostprintDatum publikování
2015
Autoři
Lopour, Pavel
Vedoucí práce
Oponent
Název časopisu
Název svazku
Vydavatel
Univerzita Pardubice
Abstrakt
Recent research has shown that traffic conflicts provide useful insight into the failure mechanism that leads to road collision between vehicles while being more frequent than accidents and without social cost. This paper provides proactive quantitative evaluation of traffic safety on three design layouts of large roundabouts by using microscopic traffic simulation approach. Combination of VISSIM and Surrogate Safety Assessment Model (SSAM) were used to model variant roundabouts with atypical layouts and assess traffic safety. The roundabouts were assessed by two approaches: (1) surrogate safety indicators - Time to Collision (TTC) and Post encroachment time (PET) and (2) safety assessment methods (reflecting severity of conflicts and potential collisions). Based on comparison of the results achieved by both methods and generally accepted safety principles were submitted proposals and recommendations for practical use of the proactive traffic safety assessment methods with surrogate safety indicators.
Rozsah stran
p. 290-301
ISSN
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Zdrojový dokument
6th International Scientific Conference: Conference Proceedings
Vydavatelská verze
http://isc.upce.cz/download/Conference_Proceedings.pdf
Přístup k e-verzi
open access
Název akce
Principy udržitelné dopravy : dopravní konference 2015 a 6. mezinárodní vědecká konference (03.09.2015 - 04.09.2015)
ISBN
978-80-7395-924-1
Studijní obor
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Klíčová slova
traffic conflicts, safety, roundabouts, surrogate safety indicators, SSAM, VISSIM, dopravní konflikty, bezpečnostů, okružní křižovatka, náhradní ukazatele bezpečnosti, SSAM, VISSIM