Speedup of DTA-Based Simulation of Large Metropolises for Quasi Real-Time ITS Applications

Agop Koulakezian, Billy Graydon, Hossam Abdelgawad, Baher Abdulhai, Yi Chang Chiu, Alberto Leon-Garcia

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

The assessment of real-time intelligent transportation system (ITS) applications, such as traffic management and adaptive route guidance systems, requires the use of fast and near real-time dynamic traffic simulation models. Even off-line applications, used for testing planning scenarios, often require fast-enough traffic simulation models that enable the required repetitive simulations. This is even more critical for large-scale networks with millions of vehicles. This paper investigates the speedup of DTA simulation models, using compiler optimizations and parallelism. DynusT as a widely used DTA model was evaluated as a test case, while its results could be generalized because we have used real-networks and calibrated them using real data sets in the Greater Toronto and Hamilton Area (GTHA). Extensive testing is performed to evaluate various dimensions for speed-up including: network size, number of processors, various optimization levels and operating systems. The performance results show that compiler optimizations and parallelism allow to: 1) double the speed required for a 4-hour simulation after 12 iterations to reach equilibrium, and 2) bring down the initial simulation time (required for network loading) by 2.5 times, enabling the testing of various real-time ITS applications.

Original languageEnglish (US)
Title of host publicationProceedings - 2015 IEEE 18th International Conference on Intelligent Transportation Systems
Subtitle of host publicationSmart Mobility for Safety and Sustainability, ITSC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages483-490
Number of pages8
ISBN (Electronic)9781467365956, 9781467365956, 9781467365956, 9781467365956
DOIs
StatePublished - Oct 30 2015
Externally publishedYes
Event18th IEEE International Conference on Intelligent Transportation Systems, ITSC 2015 - Gran Canaria, Spain
Duration: Sep 15 2015Sep 18 2015

Publication series

NameIEEE Conference on Intelligent Transportation Systems, Proceedings, ITSC
Volume2015-October

Other

Other18th IEEE International Conference on Intelligent Transportation Systems, ITSC 2015
Country/TerritorySpain
CityGran Canaria
Period9/15/159/18/15

ASJC Scopus subject areas

  • Automotive Engineering
  • Mechanical Engineering
  • Computer Science Applications

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