Research on Speed Limit of Two-Lane Highway of Mountain Area

Abstract:

The paper investigates the effects of the road geometry parameters and the driver psychosocial reaction behaviors on driving safety of vehicles on the two-lane highway of mountain area. Firstly, the equivalent accident rate, P, is put forward as driving safety indicator, and the parameter sensitive analysis are performed between P and road geometry parameters including curve radius, slope and length, then the estimation model and evaluation criterion of P is established. Secondly, the psychosocial reaction behavior index, N, is provided as ride comfort indicator, and the evaluation model of N is established by relating N with road geometry parameters and driving speed. Finally, the two kinds of limiting condition including highest safety of the general bending, slope sections and lowest safety of the sharp curve, steep sections are present and the corresponding the driving speed is calculated. The analysis show that when V=35km/h in the most secure particular curved, the optimum driving safety and comfort can be achieved. As well, the maximum speed will be 10km/h in the lowest ones.

• Periodical: Applied Mechanics and Materials (Volumes 178-181)
• Pages: 1904-1907
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.178-181.1904
• Online since: May 2012
• Authors: Yu Heng Kan, Xin Qiu, Xiang Shen, Qing Yang, Le Yi Zhang
• Keywords: Alignment Element, Ride Comfort, Speed Limit, Traffic Safety

References

[1] L.X Wu: Journal of Jilin Institute of Architectural and Civil, (2005) No3, pp.35-36.(In Chinese).

[2] J.G Qiao: Study on the key parament of two-lane highway in mountain based on the driver's factors (Ph.D., Beijing University of Technology, China 2006). (In Chinese).

[3] J.E. Leish and J.P Leish: Transportation Research Record, (1997) No 631,pp.435-467.

[4] Z.H Li: Research on two-lane of road alignment safety (Ph.D., Tongji university, China 2009). (In Chinese).

[5] S.F Niu. Research on traffic safety characteristics of curved Section of highway (Ph.D., Jilin university ,China 2008). (In Chinese).

[6] The application of the evaluation of the safety road geometric structure by using the information technology of human body (Tongji university Press, China 2005) (In Chinese).

[7] Research on the permanent design of two-lane road route in mountain (Research Institute Of Highway, Beijing 2007) (In Chinese).