1. Road traffic considered as a random series;Adams;J. Inst. civ. Engrs,1936
2. On the highway crossing problem;Allan;Proc. Fourth Conf. of the Australian Road Research Board,1968
3. Distribution of acceptance gaps for crossing and turning manoeuvers;Blunden;Proc. Aust. Road Res. Bd.,1962
4. The risk taken crossing a road;Cohen;Opl. Res. Q.,1955
5. Gap acceptance in the freeway merging process;Drew,1967