Citation

Yokoya Y, Yamasaki A, Soma H. Trans. Soc. Automot. Eng. Jpn. 2023; 54(6): 1222-1229.

Copyright

(Copyright © 2023, Society of Automotive Engineers of Japan)

DOI

10.11351/jsaeronbun.54.1222

PMID

unavailable

Abstract

Based on a cellular automaton model of traffic flow, the mixed traffic flow dynamics with both conventional vehicles and connected autonomous vehicles (CAVs) was studied in terms of both the CAV-penetration rate and a connection range. CAVs behave synchronously with other CAVs ahead via real-time communication. The flux never reaches steady state above the critical density even though the traffic flow model is deterministic. With the CAV-penetration rate increases, the trade-off of an increase in flux and a destabilization of traffic flow becomes prominent. The connection range expansion increases the flux only when the CAV-penetration rate exceeds a certain threshold.

Language: ja

Keywords

CA model; connected autonomous vehicle; energy-saving driving; social system; traffic stream