Safety in highways is one of the most important subjects in Transportation Engineering. Increasing rate of vehicles and the needs to design or geometrically modifying the highways, emphasized on the safe-designing of the roadways more than before. Between the constructive components of the highway, horizontal curves due to the more occurrences of accidents are of great importance. The American ministry of highway and transportation introduced the software IHSDM, with variant capabilities, to predict accidents. In this research, five types of curves (simple circle curve and clothoid-circle-clothoid) at different intersection angles were designed, and accident rates based on the standard specifications on each curve was predicted by using the IHSDM, and the results are compared with each other. Finally, by processing the curves of accident rates versus the curves types and intersection angle, and comparing them with each other, the necessity of using spiral curves in the highway design is emphasized.
- Iran’s Management and Planning Organization (1992). “Highways Geometrical Design Standard “, 161 issue, publication of Iran’s Management and Planning Organization.
- A Policy on Geometric Design of Highways and Streets (2004) ,AASHTO ,Washington D.C.
- Bitzl .(1964) 'The safety level of roads', Research road construction and road traffic technique' Ministry of transportation, vol.28
- Feuchtinger, M.E., Christoffers, C. (1953) 'Driving Dynamic Investigation as Measure of Road-Traffic-Safety' , Journal for traffic safety, vol.1
- Kerbs, H.G., 'Kloechner, J. H. (1977) 'Investigation of the Effect of Highway and traffic conditions outside build-up areas on accident rates', research road construction and road traffic technique, ministry of transportation
- Lamm, R.,Mailaender, T. and Psarianos B. (1999) 'Highway design and traffic safety engineering handbook'
- Zegeer, C.V. , Twomey, J.M.Heckman, M.L. and Hayward, J.C.(1992) ' Safety effectiveness of highway design features'
Guest Editor: Eleonora Papadimitriou, PhD
Editors: Dario Babić, PhD; Marko Matulin, PhD; Marko Ševrović, PhD.
The mission of our journal is to provide high quality communication of research results, which is crucial for the effectiveness of scientific research, the promotion of scientific information, new ideas, and original research in the field of traffic and transportation engineering.
1848-4069
0353-5320
Proud publisher
Accelerating Discoveries in Traffic Science |
2024 © Promet - Traffic&Transportation journal
