Chapter
Apr 26, 2012
Travel Speed Forecasting Algorithm Based on Data Fusion
Authors: Yaoqiao Zhai [email protected], Jiancheng Weng [email protected], Jian Rong, and Xiaoming LiuAuthor Affiliations
Publication: International Conference on Transportation Engineering 2009
Abstract
Due to the variety of equipment and collection condition, different traffic data collection methods have their own application fields and different precision. Therefore, in order to acquire more reliable analysis results, the data from different detectors needs to be fused. And then travel speed estimation should be carried out based on the data fusion results. The paper presents a short-term forecasting algorithm for travel speed based on Kaiman filter data fusion. After the pretreatment and traffic states division, the multi-source data including microwave detector data, loop detector data and Floating Car Data (FCD) are fused to estimate travel speed according to the different traffic states. This research determines parameters for Kalman filter, and computes the states Transfer Matrix by using the artificial neural network (ANN). The analysis result of model validation shows that the average accuracy of travel speed forecasting algorithm is over 90 percents.
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© 2009 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Algorithms
- Data analysis
- Data collection
- Engineering fundamentals
- Environmental engineering
- Equipment and machinery
- Filters
- Filtration
- Forecasting
- Infrastructure
- Mathematics
- Methodology (by type)
- Probe instruments
- Research methods (by type)
- Statistics
- Traffic engineering
- Traffic management
- Traffic speed
- Transportation engineering
- Water treatment
Authors
Affiliations
Beijing Key Laboratory of Transportation Engineering, Beijing University of Technology, Beijing, 100124. E-mail: [email protected]
Beijing Key Laboratory of Transportation Engineering, Beijing University of Technology, Beijing, 100124. E-mail: [email protected]
Jian Rong
Beijing Key Laboratory of Transportation Engineering, Beijing University of Technology, Beijing, 100124
Xiaoming Liu
Beijing Key Laboratory of Transportation Engineering, Beijing University of Technology, Beijing, 100124
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