A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Lateral Positioning of Vehicles on Horizontal Curves of Local Roads in New Zealand
In New Zealand, the prevalent approach to surfacing chip-sealed roads is to utilize the Transverse Variable Application Spray Bar (TVAS), which sprays a reduced bitumen within wheel path zones to mitigate flushing, while applying a higher rate outside these areas to minimize raveling. Visual inspection is currently used to locate wheel paths for calibrating the TVAS. This study aims to automate obtaining vehicle positioning data. Additionally, prior research on lateral positioning has predominantly focused on a highway context. This study seeks to address this gap by exploring the relationship of vehicle positioning in regard to the different curves in an urban environment. The lateral positioning of vehicles across nine horizontal curves in Christchurch was recorded using a low-cost IoT prototype. This study finds that the design intended positioning differs from the actual observed location of vehicles around curves on local roads. This research presents the results of the impact of curve radius, lane width, and deflection angle on the vehicles’ lateral positioning around a curve. It has been found that a larger curve radius results in a more consistent vehicle path, and concentrated lateral positioning. These findings provide valuable references for TVAS calibration on horizontal curves.
Lateral Positioning of Vehicles on Horizontal Curves of Local Roads in New Zealand
In New Zealand, the prevalent approach to surfacing chip-sealed roads is to utilize the Transverse Variable Application Spray Bar (TVAS), which sprays a reduced bitumen within wheel path zones to mitigate flushing, while applying a higher rate outside these areas to minimize raveling. Visual inspection is currently used to locate wheel paths for calibrating the TVAS. This study aims to automate obtaining vehicle positioning data. Additionally, prior research on lateral positioning has predominantly focused on a highway context. This study seeks to address this gap by exploring the relationship of vehicle positioning in regard to the different curves in an urban environment. The lateral positioning of vehicles across nine horizontal curves in Christchurch was recorded using a low-cost IoT prototype. This study finds that the design intended positioning differs from the actual observed location of vehicles around curves on local roads. This research presents the results of the impact of curve radius, lane width, and deflection angle on the vehicles’ lateral positioning around a curve. It has been found that a larger curve radius results in a more consistent vehicle path, and concentrated lateral positioning. These findings provide valuable references for TVAS calibration on horizontal curves.
Lateral Positioning of Vehicles on Horizontal Curves of Local Roads in New Zealand
Lecture Notes in Civil Engineering
Li, Zongjin (editor) / Mendonça, Paulo (editor) / Li, Yu (author) / van der Walt, Daniel (author) / Scheepbouwer, Eric (author) / Guo, Brian (author) / Patel, Tirth (author)
International Conference on Civil Engineering and Materials Science ; 2024 ; Singapore
Proceedings of the 9th International Conference on Civil Engineering and Materials Science ; Chapter: 25 ; 269-279
2025-03-13
11 pages
Article/Chapter (Book)
Electronic Resource
English
| BASE | 2020
Safety Evaluation of Horizontal Curves on Rural Undivided Roads
| British Library Online Contents | 2013
Signing and marking of substandard horizontal curves on rural roads
| British Library Conference Proceedings | 1998
Lateral Clearance Needs on Compound Horizontal Curves.
| Online Contents | 1993