Citation

Bahmankhah B, Fernandes P, Teixeira J, Coelho MC. Int. J. Inj. Control Safe. Promot. 2019; 26(3): 205-215.

Affiliation

Department of Mechanical Engineering/Centre for Mechanical Technology and Automation (TEMA) , University of Aveiro , Aveiro , Portugal.

Copyright

(Copyright © 2019, Informa - Taylor and Francis Group)

DOI

10.1080/17457300.2019.1624578

PMID

31169057

Abstract

Drivers' instantaneous decisions regarding speed and acceleration/deceleration, as well as the time rate of acceleration change (jerk) can result in a volatility driving behaviour with significant impact on cyclist safety. The contribution of this article is the assessment of driving volatility in motor vehicle (MV)-bicycle interactions at two-lane roundabouts. Traffic flow and bicycle GPS data were collected from two two-lane roundabouts. Then, traffic, emissions and safety models were used to evaluate volatility impacts on safety, pollutant emissions and traffic performance. The findings showed jerk have an impact on driving volatility between MVs and bicycles, regardless of roundabout design with higher amplitude of variation for MVs. However, MVs had higher acceleration-deceleration variation than bicycles.

Language: en

Keywords

Driving volatility; cyclists; emissions; roundabout; safety