1. Geometric design consistency based on speed change on horizontal curves;Abdelwahab W.;Road Transport Res.,1998
2. Consistency of horizontal alignment for different vehicle classes;Al-Masaeid H.;Transp. Res. Rec.,1995
3. Banderet, L., and B. Shukitt-Hale. 2002. Cognitive performance, mood, and neurological status at high terrestrial elevation. Fort Belvoir, VA: Defense Technical Information Center.
4. Bird R. and I. Hashim. 2005. “Operating speed and geometry relationships for rural single carriageways in the UK.” In Proc. 3rd Int. Symp. on Highway Geometric Design 01004385. Chicago: Newcastle Univ.
5. Cardoso, J., A. L. De Macedo, G. Kanellaidis, A. Flouda, I. Dimitropoulos, H. Peltola, S. Ranta, and G. Dupre. 1998. Improvements of models on the relations between speed and road characteristics. Lisbon, Portugal: Laboratoris Nacional De Engenharia Civil.