1. Ali, Z., Easa, S. M., and Hamed, M. (2009). “Stop-controlled intersection sight distance: Minor road on tangent of horizontal curve.” J. Transp. Eng., ASCE, Vol. 135, No. 9, pp. 650–657, DOI: 10.1061/(ASCE)0733-947X(2009)135:9(1650).
2. American Association of State Highway and Transportation Officials (2011). A Policy on Geometric Design of Highways and Streets. AASHTO, Washington DC, USA.
3. Boodlal, L. (2004). Accessible sidewalks and street crossings -An informational guide. Federal Highway Administration, US Department of Transportation, Washington, DC, USA
4. City of Calgary (2010). Cone-of-vision impacts in roundabouts. Final Report, Calgary, AB, Canada,
https://doi.org/www.ctep.com/pdf/Bunt%20_Cone%20of%20Vision%20Final%20Report%20.pdf.
5. Department for Regional Development (2007). Geometric design of roundabouts. Vol. 6, Section 2, Part 3 TD16/07, Belfast, Northern Ireland.