1. Analysis of traffic conflicts and collisions;Allen;Transportation Research Record,1978
2. A quantitative definition of the near accident concept (Supplementary Report 557);Balasha,1980
3. State-of-the-art. Report on traffic conflicts research in Canada;Cooper,1977
4. Irregularities in traffic flow as an estimate of risk at intersections;Hakkert,1977
5. Design considerations on traffic conflict surveys;Hauer;Transportation Research Record,1978