In order to increase the capacity and mitigate the traffic congestion at signalized and closely spaced T-intersections, an unconventional closely-spaced T-intersections design (UCTD) was proposed. Through setting back the main T-intersection’s left-turn conflict point to the adjacent T-intersection, there is no need to change the road’s land use or set additional pre-signals for the crossover segment. A two-phase scheme can be used in the main T-intersection for better performance of the heavy traffic flow. Micro simulation was developed to evaluate the UCTD’s performance. In one scenario, the UCTD resulted in a reduction of average delays by 64%, stops by 46%, average stop time by 72%, average queue length by 50%, maximum queue length by 55%, and fuel consumption and related emissions by 14% compared to conventional T-intersections. Also, results found that the UCTD is suitable when the main T-intersection’s traffic volume is much larger than that of the second one.
Analysis of Unconventional Design for Signalized and Closely-Spaced T-Intersections
19th COTA International Conference of Transportation Professionals ; 2019 ; Nanjing, China
CICTP 2019 ; 2636-2647
02.07.2019
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Simulation Studies of Traffic Operations at Oversaturated, Closely Spaced Signalized Intersections
Online Contents | 1998
|Simulation Studies of Traffic Operations at Oversaturated, Closely Spaced Signalized Intersections
Transportation Research Record | 1998
|Transportation Research Record | 1998
|