Abstract
Microscopic traffic simulations are widely used in many applications thanks to their benefits, including high-fidelity human mobility modeling. While parallel computing is often regarded as a breakthrough, one drawback is the significant computational cost it incurs. The communications for the synchronization of resources among the computing nodes are still a bottleneck that can impact overall system performance and efficiency. As an alternative, adjusting synchronization strategies can be considered to reduce the cost, although this may result in decreased accuracy and an increase in undesirable artifacts. To our knowledge, analytical approaches for artifacts and synchronization strategies are not well investigated. In this context, we conduct a comprehensive analysis to understand factors of parallelization of large-scale micro-traffic simulations. Considering the life cycle of a vehicle in simulations, we analyze possible states and state transitions of vehicles in parallel computing. This paper identifies artifacts that may occur in a border region where multiple computing nodes share and exchange due to differences among the internal state of entities and the surrounding environment.
| Original language | English |
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| Title of host publication | 33rd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL 2025 |
| Editors | Mohamed Mokbel, Shashi Shekar, Andreas Zufle, Yao-Yi Chiang, Maria Luisa Damiani, Moustafa Youssef |
| Publisher | Association for Computing Machinery, Inc |
| Pages | 149-152 |
| Number of pages | 4 |
| ISBN (Electronic) | 9798400720864 |
| DOIs | |
| State | Published - Dec 12 2025 |
| Event | 33rd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL 2025 - Minneapolis, United States Duration: Nov 3 2025 → Nov 6 2025 |
Publication series
| Name | 33rd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL 2025 |
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Conference
| Conference | 33rd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL 2025 |
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| Country/Territory | United States |
| City | Minneapolis |
| Period | 11/3/25 → 11/6/25 |
Funding
This work is supported by the Intelligence Advanced Research Projects Activity (IARPA). The U.S. Government is authorized to reproduce and distribute reprints for Governmental purposes notwithstanding any copyright annotation thereon. Disclaimer: The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of IARPA, DOE, or the U.S. Government. Notice: This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (https://www.energy.gov/doe-public-access-plan).
Keywords
- mobility
- parallel computing
- traffic simulation
- transportation