Validating the efficacy of GPS tracking vehicle movement for driving behaviour assessment
MetadataShow full item record
Vehicle movement trajectory recorded by GPS maps the vehicle's lane position in time sequence, therefore theoretically can be used to assess driving behaviour. However, the data quality level which can be achieved for vehicle movement tracking by different GPS receivers and positioning techniques hasn't been fully explored and documented. This study systematically validated the efficacy of GPS recording vehicle movement using different types of receivers and positioning techniques. The receivers include both recreational and professional devices; the positioning techniques refer to Single Point Positioning (SPP), Differential GPS (DGPS) and Real-time kinematic (RTK) solutions. The field trials tested the positioning accuracy as well as the quality of trajectory tracking by comparing the recorded positions to benchmarks. The study findings indicate that vehicle movement trajectories recorded by recreational-grade GPS receivers can only match other spatial information at low resolution, which is limited to the assessment of wayfinding and navigation behaviour. In contrast, the SPP, DGPS and RTK techniques undertaken by professional receivers can raise horizontal accuracy to the metre, decimetre, and centimetre level respectively. For under open sky road driving, the RTK solution generated accurate and precise vehicle movement trajectories sufficient for extracting vehicle lane position, speed, acceleration/deceleration, so as to detect detailed driving events and quantitatively assess individual driver behaviour. This paper serves as a critical reference for other researchers on the different types of GPS receivers and solutions prior to engaging a GPS in their studies.
Showing items related by title, author, creator and subject.
Pursuing Precise Vehicle Movement Trajectory in Urban Residential Area Using Multi-GNSS RTK TrackingSun, Q.; Xia, J.; Foster, J.; Falkmer, Torbjorn; Lee, H. (2017)© 2017 The Authors. Published by Elsevier B.V. Close-to-reality vehicle movement trajectory data can be useful in many transport and geography studies when precise vehicle localization or timing is required in the ...
Assessing Drivers’ Visual-motor Coordination Using Eye Tracking, GNSS and GIS: a Spatial Turn in Driving PsychologySun, Qian (Chayn); Xia, Jianhong (Cecilia); Nadarajah, Nandakumaran; Falkmer, Torbjorn; Foster, Jonathan; Lee, Hoe (2015)Vehicle-driving in real traffic can be considered as a human-machine system involving not only the attribute of the vehicle movement but also the human visual perception, cognition and motion of the driver. The study of ...
Positioning Eye Fixation and Vehicle Movement: Visual-motor Coordination Assessment in Naturalistic DrivingQian, S.; Xia, Jianhong (Cecilia); Nadarajah, Nandakumaran; Falkmer, Torbjorn; Foster, Jonathan; Lee, Hoe (2015)In recent years, many driving studies in the traffic safety literature have undertaken error assessments of driver behaviour. However, few studies have been able to analyse the detailed individual vision and motor behaviours ...