Search results for "Surrogate safety measure"

showing 2 items of 2 documents

Surrogate Measures of Safety at Roundabouts in AIMSUN and VISSIM Environment

2018

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 functio…

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
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Calibration of microscopic traffic simulation models for evaluating operation and safety performance at roundabouts

AIMSUN microsimulation roundabout genetic algorithmSSAM surrogate safety measureturbo-roundaboutsingle-lane roundabouts; double-lane roundabouts; turbo-roundabouts; entry capacity; operations; gap- acceptance parameters; Systematic Review; Meta-analysis; capacity uncertainty; AIMSUN microsimulation roundabout genetic algorithm; passenger car equivalent; SSAM surrogate safety measurecapacity uncertaintygap- acceptance parameteroperationsingle-lane roundaboutpassenger car equivalentSettore ICAR/04 - Strade Ferrovie Ed AeroportiMeta-analysiSystematic Reviewdouble-lane roundaboutentry capacity
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