Improving the calibration time of traffic simulation models using parallel computing technique

Nima Dadashzadeh, Murat Ergun, Ali Sercan Kesten, Marijan Žura

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Citations (Scopus)

Abstract

The calibration procedure for traffic simulation models can be a very time-consuming process in the case of a large-scale and complex network. In the application of Evolutionary Algorithms (EA) such as Genetic Algorithms (GA) and Particle Swarm Optimization (PSO) for calibration of traffic simulation models, objective function evaluation is the most time-consuming step in such calibration problems, because EA has to run a traffic simulation and calculate its corresponding objective function value once for each set of parameters. The main contribution of this study has been to develop a quick calibration procedure for the parameters of driving behavior models using EA and parallel computing techniques (PCTs). The proposed method was coded and implemented in a microscopic traffic simulation software. Two scenarios with/without PCT were analyzed using the developed methodology. The results of scenario analysis show that using an integrated calibration and PCT can reduce the total computational time of the optimization process significantly - in our experiments by 50% - and improve the optimization algorithm's performance in a complex optimization problem. The proposed method is useful for overcoming the limitation of computational time of the existing calibration methods and can be applied to various EAs and traffic simulation software.
Original languageEnglish
Title of host publication2019 6th International Conference on Models and Technologies for Intelligent Transportation Systems (MT-ITS)
PublisherIEEE
Number of pages7
ISBN (Electronic)9781538694848
ISBN (Print)9781538694855
DOIs
Publication statusPublished - 28 Oct 2019
Externally publishedYes
Event6th International Conference on Models and Technologies for Intelligent Transportation Systems - Krakow, Poland
Duration: 5 Jun 20197 Jun 2019
Conference number: 6

Conference

Conference6th International Conference on Models and Technologies for Intelligent Transportation Systems
Abbreviated titleMT-ITS 2019
Country/TerritoryPoland
CityKrakow
Period5/06/197/06/19

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