Performance Tuning of Coordinated Active Traffic Control Algorithm : Simultaneously Improving Corridor Safety and Mobility Performances
Author
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-09
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Proactive traffic control based on macroscopic traffic flow model is an innovative approach to active traffic management.
An online, model predictive control (MPC) based active traffic control algorithm, DynaTAM, is proposed to implement integrated control through ramp metering (RM) and variable speed limit (VSL).
DynaTAM predicts traffic states to anticipate incoming traffic congestion and to provide control plan recommendations for optimizing the network traffic conditions.
However, as with other sophisticated prediction-based control algorithms, a system fine-tuning procedure is required for DynaTAM.
In this study, two aspects will be addressed to further improve system performance.
First, the control algorithm is evaluated to find the correlations between the prediction horizon length and the controlled system performance to suggest the most efficient prediction horizon length for the control algorithm.
Second, safety considerations are quantitatively incorporated into the control algorithm.
The control algorithm optimizes the traffic network targeting the cost reductions achieved by both improved mobility and reduced crash risk.
A field-data-based simulation study is conducted to evaluate the system performance within various parameters and to determine the most suitable algorithm parameters.
Optimized by the refined DynaTAM algorithm, the targeted area shows significant improvements in terms of both traffic safety and mobility.
American Psychological Association (APA)
Fang, Jie. 2014. Performance Tuning of Coordinated Active Traffic Control Algorithm : Simultaneously Improving Corridor Safety and Mobility Performances. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-448128
Modern Language Association (MLA)
Fang, Jie. Performance Tuning of Coordinated Active Traffic Control Algorithm : Simultaneously Improving Corridor Safety and Mobility Performances. Mathematical Problems in Engineering No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-448128
American Medical Association (AMA)
Fang, Jie. Performance Tuning of Coordinated Active Traffic Control Algorithm : Simultaneously Improving Corridor Safety and Mobility Performances. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-448128
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-448128