6533b859fe1ef96bd12b7771

RESEARCH PRODUCT

Surrogate Measures of Safety at Roundabouts in AIMSUN and VISSIM Environment

Maria Luisa TumminelloAnna GranaTullio GiuffrèOrazio GiuffrèSalvatore Trubia

subject

050210 logistics & transportationVISSIMComputer sciencebusiness.industryRoundabout05 social sciencesMicrosimulationSurrogate safety measureTraffic simulation010501 environmental sciences01 natural sciencesVisSimTransport engineeringSoftware0502 economics and businessRoundaboutTrajectorySettore ICAR/04 - Strade Ferrovie Ed AeroportiAIMSUNbusinesscomputer0105 earth and related environmental sciencescomputer.programming_language

description

This paper addresses issues on road safety analysis through microscopic traffic simulation models. The Surrogate Safety Assessment Model (SSAM) was applied to read vehicle trajectory files generated by two micro-simulators and then calculate surrogate measures of safety. Since safety assessment of any road entity can provide different results based on the micro-simulator which is used, the main objective of this research was to estimate the safety performance of three roundabout layouts and compare the conflict events simulated by AIMSUN and VISSIM. The two micro-simulators were used to build the calibrated models of the roundabouts, each fitting the corresponding empirical capacity function. The results provided insights on how to set the SSAM filters in order to have a comparable frequency of conflicts by simulation and examine conditions under which a safety analysis could be independent of the software used.

yearjournalcountryeditionlanguage
2018-08-01
https://doi.org/10.1007/978-3-319-98618-0_5