An innovative design for left turn bicycles at continuous flow intersections

Journal article (2019)

Authors

J. Zhao University of Shanghai for Science and Technology
Xing Gao University of Shanghai for Science and Technology
Copyright: © 2019 J. Zhao, Xing Gao, V.L. Knoop
DOI: https://doi.org/10.1080/21680566.2019.1614496
More Info
expand_more

Published Date

2019

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

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 leftturn
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.