Abstract
Distributed transportation simulation is an important technology for evaluating large-scale traffic applications and control policies, before they are implemented in real-world traffic systems. Offline road network partitioning is the first step towards distributed transportation simulation. Currently, road network portioning algorithms, like METIS, are designed to reduce the execution time. However, a slower execution time is acceptable for offline road network partitioning, if it leads to more efficient road network partitions. This paper introduces hMETIS-based offline road network partitioning. One experiment based on Singapore expressways shows that compared with the famous METIS-based offline road network partitioning, hMETIS-based offline road network partitioning reduces the number of vehicles crossing partitions by 9.8% on average, with a similar load imbalance and an acceptable execution time. For distributed traffic simulations, where there are large amount of data exchanged between partitions, hMETIS-based offline road network partitioning is one candidate solution to reduce the simulation time and increase the scalability.
This research was supported by the Singapore-MIT Alliance for Research and Technology (SMART), Grant R-252-000-459-592.
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Xu, Y., Tan, G. (2012). hMETIS-Based Offline Road Network Partitioning. In: Xiao, T., Zhang, L., Fei, M. (eds) AsiaSim 2012. AsiaSim 2012. Communications in Computer and Information Science, vol 323. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-34384-1_27
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DOI: https://doi.org/10.1007/978-3-642-34384-1_27
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