Exact-Differential Large-Scale Traffic Simulation

Hanai, M.; Suzumura, T.; Theodoropoulos, G.; Perumalla, K.

doi:10.1145/2769458.2769472

Exact-Differential Large-Scale Traffic Simulation

Hanai, M.; Suzumura, T.; Theodoropoulos, G.; Perumalla, K.

Authors

M. Hanai

T. Suzumura

G. Theodoropoulos

K. Perumalla

Abstract

Analyzing large-scale traffics by simulation needs repeating execution many times with various patterns of scenarios or parameters. Such repeating execution brings about big redundancy because the change from a prior scenario to a later scenario is very minor in most cases, for example, blocking only one of roads or changing the speed limit of several roads. In this paper, we propose a new redundancy reduction technique, called exact-differential simulation, which enables to simulate only changing scenarios in later execution while keeping exactly same results as in the case of whole simulation. The paper consists of two main efforts: (i) a key idea and algorithm of the exact-differential simulation, (ii) a method to build large-scale traffic simulation on the top of the exact-differential simulation. In experiments of Tokyo traffic simulation, the exact-differential simulation shows 7.26 times as much elapsed time improvement in average and 2.26 times improvement even in the worst case as the whole simulation.

Citation

Hanai, M., Suzumura, T., Theodoropoulos, G., & Perumalla, K. (2015). Exact-Differential Large-Scale Traffic Simulation. In SIGSIM-PADS'15 : proceedings of the 3rd ACM Conference on SIGSIM-Principles of Advanced Discrete Simulation : June 10-12, 2015, London, UK (271-280). https://doi.org/10.1145/2769458.2769472

Conference Name	3rd ACM SIGSIM Conference on Principles of Advanced Discrete Simulation - SIGSIM-PADS '15
Conference Location	London, United Kingdom
Start Date	Jun 10, 2015
End Date	Jun 12, 2015
Online Publication Date	Jun 10, 2015
Publication Date	Jun 10, 2015
Deposit Date	Apr 21, 2016
Publicly Available Date	Apr 28, 2016
Pages	271-280
Book Title	SIGSIM-PADS'15 : proceedings of the 3rd ACM Conference on SIGSIM-Principles of Advanced Discrete Simulation : June 10-12, 2015, London, UK.
DOI	https://doi.org/10.1145/2769458.2769472

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Copyright Statement
© 2014 ACM. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in Masatoshi Hanai, Toyotaro Suzumura, Georgios Theodoropoulos, and Kalyan S. Perumalla. 2015. Exact-Differential Large-Scale Traffic Simulation. In Proceedings of the 3rd ACM SIGSIM Conference on Principles of Advanced Discrete Simulation (SIGSIM PADS '15). ACM, New York, NY, USA, 271-280. https://doi.org/10.1145/2769458.2769472