Shared lane design has been used to relieve the hindrance of left-turn movement. The primary object of the study is to identify the benefit zone where shared lane design overwhelms conventional protected control strategies at signalized intersections. Analytical models were proposed to calculate the minimum green time duration required to fully discharge all the approaching vehicles, which is used as an indicator of the effectiveness of different strategies. Based on the proposed model, the benefit zone of the shared lane design was identified. With the benefit zone plot, engineers can decide whether to deploy shared lane design according to the traffic demand. A realistic method was also provided to increase the accuracy of the proposed models. The results showed that the shared lane design is suitable to intersections where traffic demand from opposing approaches is significantly unbalanced. The proposed framework is expected to be helpful for traffic engineers to improve the performance of signalized intersections effectively and efficiently without complex computing.
Benefit Zone Analysis of the Shared Lane Design at Signalized Intersections in China
17th COTA International Conference of Transportation Professionals ; 2017 ; Shanghai, China
CICTP 2017 ; 2222-2230
2018-01-18
Conference paper
Electronic Resource
English
Lane Specific Dilemma Zone Warnings at Signalized Intersections
British Library Conference Proceedings | 2012
|Investigation of Saturation Flow on Shared Right-Turn Lane at Signalized Intersections
Transportation Research Record | 2014
|Analysis of single-lane approaches at signalized intersections
Elsevier | 1991
Operational analysis of the contraflow left-turn lane design at signalized intersections in China
Online Contents | 2016
|