Hypercongestion, Autonomous Vehicles, and Urban Spatial Structure

Takao Dantsuji () and Yuki Takayama ()
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Takao Dantsuji: Monash Institute of Transport Studies, Monash University, Clayton, Victoria 3800, Australia; Institute of Science and Engineering, Kanazawa University, Kanazawa 920-1192, Japan

Transportation Science, 2024, vol. 58, issue 6, 1352-1370

Abstract: This paper examines the effects of hypercongestion mitigation by perimeter control and the introduction of autonomous vehicles on the spatial structures of cities. By incorporating a bathtub model, we develop a land use model where hypercongestion occurs in the downtown area and interacts with land use. We show that hypercongestion mitigation by perimeter control decreases the commuting cost in the short run and results in a less dense urban spatial structure in the long run. Furthermore, we reveal that the impact of autonomous vehicles depends on the presence of hypercongestion. The introduction of autonomous vehicles may increase the commuting cost in the presence of hypercongestion and may cause a decrease in the suburban population; however, it may make cities spatially expand outward. This result contradicts that of the standard bottleneck model. When perimeter control is implemented, the introduction of autonomous vehicles decreases the commuting cost and results in a less dense urban spatial structure. These results show that hypercongestion is a key factor that can change urban spatial structures.

Keywords: hypercongestion; perimeter control; autonomous vehicle; bathtub model; land use model (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:inm:ortrsc:v:58:y:2024:i:6:p:1352-1370

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