Citation

Zhao J, Gao X, Knoop VL. Transportmetrica B: Transp. Dyn. 2019; 7(1): 1305-1322.

Copyright

(Copyright © 2019, Hong Kong Society for Transportation Studies, Publisher Informa - Taylor and Francis Group)

DOI

10.1080/21680566.2019.1614496

PMID

unavailable

Abstract

To improve the practical capacity of the continuous flow intersections (CFI) and eliminate the conflict between left-turn bicycles and through vehicles, an optimization design method for left-turn bicycles was proposed. The pre-stop line for through vehicles and the crossing passage for left-turn bicycles were set at the pre-signal points of the CFI. The control of the through vehicles at pre-signal was added in the proposed method. A linear programming model was established to achieve the maximum vehicular practical capacity. The optimization effectiveness and applicability for this design were validated by a case study and sensitivity analyses. The results show that the improvements in practical capacity obtained by the proposed method increase with the increase of the left-turn bicycles volume and through vehicle percentage, while decrease with longer cycle length. As for bicycles, the proposed method can reduce the delay in the case of high traffic demand.

Language: en

Keywords

Continuous flow intersections; left-turn bicycles; linear programming; practical capacity; unconventional design