Impact of car speed on traffic safety in the city
https://doi.org/10.52170/1815-9265_2023_65_5
Abstract
The purpose of this work is to assess the impact of vehicle speed in the city on traffic safety. Signalized intersections are common places where traffic accidents are concentrated in large cities. Left turns are the most dangerous maneuvers at signalized intersections, so an investigation of actual speeds for left-turning cars was carried out. Observations were carried out using video filming.
An analysis of the speed processing results at signalized intersections in Volgograd and Volzhsky showed that the smaller the turning radius, the lower the speed of turning left. The average turning speed with a radius of 23 to 40 m for cars was 21,4-26,4 km/h, for trucks – 19,2-21 km/h. The average speed of left turns at signalized intersections is taken into account when calculating meantime of cycles. In Russia, the recommended average speed is 25 km/h. In Germany, the design speed of cars turning left depends on the turning radius – 18 km/h with a radius of less than 10m and 25 km/h with a radius of more than 10m. The actual average speed of left turns, as observed, can be both higher and lower than the Russian recommendations. The lower the speed of cars turning left and the larger the signalized intersection, the longer it takes for the car to travel long-distance conflict points. If time is not enough, there is a high probability of a traffic accident. To improve road safety at such complex nodes of the city’s road network as signalized intersections, it is necessary to detail the incoming parameters for managing transport and pedestrian flows.
About the Authors
S. V. Vitolin
Volgograd State Technical University
Russian Federation
Russian Federation
Sergey V. Vitolin – Associate Professor of the Construction and Operation of Transport Facilities Department, Candidate of Engineering
Volgograd
V. S. Fedorova
Volgograd State Technical University
Russian Federation
Russian Federation
Violetta S. Fedorova – Second-year Master’s Student of the Construction and Operation of Transport Facilities Department
Volgograd
R. S. Koloskov
Volgograd State Technical University
Russian Federation
Russian Federation
Roman S. Koloskov – Second-year Master’s Student of the Construction and Operation of Transport Facilities Department
Volgograd
I. M. Andreyanov
Volgograd State Technical University
Russian Federation
Russian Federation
Igor M. Andreyanov – Senior Student of the Transport Engineering Systems and Technosphere Safety Faculty
Volgograd
D. D. Egorov
Volgograd State Technical University
Russian Federation
Russian Federation
Daniil D. Egorov – Senior Student of the Transport Engineering Systems and Technosphere Safety Faculty
Volgograd
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Review
For citations:
Vitolin S.V., Fedorova V.S., Koloskov R.S., Andreyanov I.M., Egorov D.D. Impact of car speed on traffic safety in the city. Bulletin of Siberian State University of Transport. 2023;(2):5-12. (In Russ.) https://doi.org/10.52170/1815-9265_2023_65_5
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