Efficient Original-Destination Bandwidth: A Novel Model for Arterial Traffic Signal Coordination

Abstract

This paper proposes an efficient origin-estimation bandwidth (OD band) model, which provides dedicated progression bands for arterial traffic based on the real-time dynamic matrix of their estimated OD pairs. The innovations of the OD band model are as follows: First, the dynamics of through and turning-in/out traffics are analyzed based on the matrix of their estimated OD pairs, and used to generate the traffic movement sequence at continuous intersections; Second, the end-time of green interval for lag-lag phase sequence at continuous intersections is determined according to the relevant constraints, the relationship between the start/end-time of green interval and the minimum/maximum green intervals; Third, the bandwidths of the two directions of the artery ware produced, after being weighted by their traffic demands. The intuitiveness, convenience, and feasibility of the OD band model were fully demonstrated through a case study. Overall, the OD band model helps to produce bi-directional progression bands for traffic with many turning movements on the artery, and enables the through and turning-in/out traffics to proceed through continuous intersections, when the signals at those intersections are green.

Investigating the Effect of Network Traffic Signal Timing Strategy with Dynamic Variable Guidance Lanes

“…At present, the studies about network signal control mainly follow two research lines. On the one hand, considerable studies [19][20][21][22][23] are carried out on the basis of arterial coordinated signal control. These studies have been devoted to computing the parameters of network signal control, such as cycle lengths, green splits, and off-sets.…”

“…Regarding on-line traffic control, a hybrid approach combining interacting-intersection optimization (i.e., optimizing the parameters such as the green time, the off-sets, and the phase sequences) and the link metering control was considered. Wang [23] proposed an efficient origin-destination bandwidth (OD band) model, which provided dedicated progression bands for arterial traffic flows based on the real-time dynamic matrix of their estimated OD pairs. Wada [24] considered an optimal coordinated traffic signal control under both deterministic and stochastic demands.…”