1. Major route accident reduction by improvements;Box,1989
2. Brown, R.J., 1972. The identification and improvement of accident black spots. Technical Manual K21. National Institute of Road Research, Pretoria, South Africa.
3. Brown, H.C., Tarko, A.P., 1999. Effects of access control on safety on urban arterial streets. Transportation Research Record 1665. Transportation Research Board, Washington, DC, pp. 68–74.
4. Duarte, A., Corben, B., 1998. Improvement to black spot treatment strategy. Report no. 132. Monash University Accident Research Centre, Clayton, Victoria.
5. Federal Highway Administration, 1998. Highway statistics 1997 (FHWA PL-98-020). US Department of Transportation, Washington, DC.