Chapter
Aug 30, 2023
A Machine Learning Method for Saturation Headway Estimation Based on Commonly Available Information
Authors: Chen-Xi Xi [email protected], Hai-Tian Huang [email protected], Zi-Zhuo Lin [email protected], Cheng-Chuan An [email protected], and Jing-Xin Xia [email protected]Author Affiliations
Publication: CICTP 2023
ABSTRACT
Estimation of saturation headway at signalized intersections is of vital importance for traffic supply measurement and signal timing optimization. Most previous studies either need manual participation in collecting label values or require dynamic or aggregated data (e.g., heavy vehicle and turning ratio) to build estimation model. In this paper, we proposed a machine learning method for saturation headway estimation using commonly available features. To efficiently extract reliable saturation headway for model training, an aggregate-based signal cycle identification method was developed to obtain saturation headway sequence automatically by the designed rule. The results show the extreme values at the interior and the end of the continuous headway sequence are identified accurately. The significance of selected features is proved by KS test. Meanwhile, the performance in diverse cases validates the effectiveness and robustness of the proposed model.
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Published online: Aug 30, 2023
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ASCE Technical Topics:
- Aggregates
- Artificial intelligence and machine learning
- Computer programming
- Computing in civil engineering
- Data collection
- Dynamic models
- Education
- Engineering fundamentals
- Highway and road management
- Highway transportation
- Highways and roads
- Infrastructure
- Intersections
- Methodology (by type)
- Models (by type)
- Optimization models
- Pavements
- Practice and Profession
- Research methods (by type)
- Traffic engineering
- Traffic management
- Traffic signals
- Training
- Transportation engineering
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1Intelligent Transportation Systems Research Center, Southeast Univ., Nanjing, Jiangsu, China. Email: [email protected]
2Intelligent Transportation Systems Research Center, Southeast Univ., Nanjing, Jiangsu, China. Email: [email protected]
3Intelligent Transportation Systems Research Center, Southeast Univ., Nanjing, Jiangsu, China. Email: [email protected]
4Intelligent Transportation Systems Research Center, Southeast Univ., Nanjing, Jiangsu, China. Email: [email protected]
5Intelligent Transportation Systems Research Center, Southeast Univ., Nanjing, Jiangsu, China. Email: [email protected]
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