The examination of acceleration and deceleration (A/D) characteristics in vehicles at intersections holds significant relevance in intersection design, fuel emission modelling, and various related domains. This paper presents an evaluation of the A/D behaviour of cars, specifically at signalized intersections, focusing on mixed-traffic conditions characterized by weak lane discipline. To gather comprehensive data, extensive field runs were conducted in Chennai city, India, employing passenger cars equipped with an Inertial Measurement Unit (IMU) and a Global Positioning System (GPS) capable of capturing vehicle dynamics at a deci-second resolution. An algorithm was developed with over 90% accuracy to distinguish between straight and turning movements at intersections. Subsequently, a thorough analysis and modelling of the A/D behaviour was carried out, focusing on ‘stop and go’ manoeuvres at 22 four-lane, four-legged signalized intersections, encompassing both straight and turning movements. The analysis revealed that straight movements exhibited 14.6% higher acceleration and 12.34% greater deceleration than turning movements. The study explores various A/D characteristics and the findings indicate that average and maximum deceleration rates increase with approach speeds, peaking approximately 8 s before stopping. The average critical speeds for acceleration and deceleration manoeuvers were observed to be 8.24 and 16.80 km/h for all approach speed ranges, respectively. Notably, the A/D behaviour was found to be best described by polynomial models in both types of movements with R2 greater than 0.8. This research could provide valuable inputs for traffic simulation models, characterizing driving behaviour and developing driver assistance systems.
Manoeuvre Detection and Modelling Acceleration/Deceleration Behaviour at Signalized Intersections Through Instrumented Vehicles
Lecture Notes in Civil Engineering
International Conference on Transportation System Engineering and Management ; 2023 ; Warangal, India October 12, 2023 - October 14, 2023
Recent Advances in Transportation Systems Engineering and Management—Volume 1 ; Chapter : 3 ; 31-52
2024-10-02
22 pages
Article/Chapter (Book)
Electronic Resource
English
Evaluation of Driver Deceleration Behavior at Signalized Intersections
Transportation Research Record | 2007
|Taylor & Francis Verlag | 2023
|Evaluation of Driver Deceleration Behavior at Signalized Intersections
Online Contents | 2007
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