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|Title:||hMETIS-based offline road network partitioning|
|Keywords:||distributed transportation simulation|
offline road network partitioning
|Citation:||Xu, Y.,Tan, G. (2012). hMETIS-based offline road network partitioning. Communications in Computer and Information Science 323 CCIS (PART 1) : 221-229. ScholarBank@NUS Repository. https://doi.org/10.1007/978-3-642-34384-1_27|
|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. © 2012 Springer-Verlag.|
|Source Title:||Communications in Computer and Information Science|
|Appears in Collections:||Staff Publications|
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