An innovative design for left turn bicycles at continuous flow intersections

An innovative design for left turn bicycles at continuous flow intersections

Zhao, J. (University of Shanghai for Science and Technology)
Gao, Xing (University of Shanghai for Science and Technology)
Knoop, V.L. (TU Delft Transport and Planning)

2019

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.

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

http://resolver.tudelft.nl/uuid:97854351-416a-462b-9221-04c00dc79afa

https://doi.org/10.1080/21680566.2019.1614496

2168-0566

Transportmetrica B: Transport Dynamics, 7 (1), 1305–1322

Institutional Repository

journal article

© 2019 J. Zhao, Xing Gao, V.L. Knoop