01660521

Component

In this paper, the authors study the problem of devising a signal control policy for road transportation networks that is fair and provides high throughput. In particular, the authors propose and study a novel Queue-Delay Backpressure algorithm with variable cycle length, that takes into account both the queue lengths and the head-of-line delay at a junction. Using a variety of simulations, the authors show that the proposed algorithm achieves a middle ground between maximizing throughput and minimizing the maximum delays incurred. The authors then optimize cycle lengths to achieve minimum weighted sum of delays. Finally, the authors also study the effect of explicitly considering start-up losses in headways while optimizing the cycle lengths, and conclude that it is beneficial to consider these effects while designing signal control policies.

This paper was sponsored by TRB committee AHB25 Standing Committee on Traffic Signal Systems.

18-03915

English

15p

2018

Transportation Research Board 97th Annual Meeting

Digital/other

Figures; References

Algorithms; Headways; Optimization; Queuing; Simulation; Through traffic; Traffic delays; Traffic signal cycle

Highways; Operations and Traffic Management; Planning and Forecasting

Transportation Research Board Annual Meeting 2018 Paper #18-03915

TRIS, TRB, ATRI

Jan 8 2018 10:58AM