An Adaptive Procedure for Prediction of Traffic Conditions at Signalized Intersection
To capture the complex nature of intersection queue dynamics, this research proposed a recursive nonparametric regression model and implemented it to forecast traffic flows and queue evolution in a congested actuated intersection. The major contribution of this study is that the proposed model can be used to substitute traditional simulation software in the lower level of a real time traffic control system to search the optimal control variables, and then utilize the found solutions as the inputs in the simulation software in the upper level of that control system to attain the systemperformances. In this way, the advantages of traditional mathematical modeling approach and simulation software could be both utilized, while theirdisadvantages could be effectively avoided. The proposed model also takesthe external un-quantifiable or non-easily quantifiable factors influenceon the traffic pattern into consideration. Moreover, its multi-step prediction ability and the usage of an advanced data structure makes the proposed approach has the potential to be applied in real-time control. As an application, a case study based on Baltimore-Washington network is presented. The numerical results are reasonable. For the covering abstract see ITRDE140665.
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Authors:
- LIU, K E
- GHAMAN, R
- FEI, XIANG
- Publication Date: 2007-10
Language
- English
Media Info
- Serial:
Subject/Index Terms
- TRT Terms: Conferences; Forecasting; Intelligent transportation systems; Queuing; Simulation; Software; Traffic congestion; Traffic control; Traffic flow; Trip generation
- ITRD Terms: 8525: Conference; 632: Congestion (traffic); 132: Forecast; 663: Generated traffic; 8735: Intelligent transport system; 6594: Queue; 9103: Simulation; 8645: Software; 654: Traffic control; 671: Traffic flow
- Subject Areas: Operations and Traffic Management; I71: Traffic Theory; I72: Traffic and Transport Planning; I73: Traffic Control;
Filing Info
- Accession Number: 01148932
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- Files: ITRD
- Created Date: Jan 25 2010 9:03AM