01697725

Component

This study develops and analyses the centralised and decentralised strategies for urban network traffic management through an analytical optimal control framework. The optimal control framework is built based upon the Hamilton-Jacobi formulation of kinematic wave model. Under the decentralised scheme, the authors introduce the use of sensitivity analysis for designing an effective solution algorithm on a decomposed network. The authors also demonstrate how such sensitivity analysis can be used to reduce the computational effort involved in the optimisation process. The proposed control strategies are applied to a set of test scenarios constructed from a real road network in Central London in the UK. Specific interests in the investigation include comparison of the performance gain and computational effort of the two strategies under different circumstances. This study generates insight on urban traffic management with effective use of traffic flow theory and advanced optimisation techniques.

This paper was sponsored by TRB committee AHB45 Standing Committee on Traffic Flow Theory and Characteristics.

19-00392

English

18p

2019

Transportation Research Board 98th Annual Meeting

Digital/other

Figures; References

Highway traffic control; Optimization; Sensitivity analysis; Urban highways

Kinematic wave models

Highways; Operations and Traffic Management

Transportation Research Board Annual Meeting 2019 Paper #19-00392

TRIS, TRB, ATRI

Dec 7 2018 9:35AM