Speed flow relationship for nine 4-lane roads in Melbourne. Paper prepared for the 7th Conference of the Australian Road Research Board ARRB, Adelaide, 1974.

An empirical speed flow relationship has been established from the study of nine lengths of 4-lane roads in Melbourne. More than 88 per cent of the variability in measured peak period travel speeds has been explained by variables representing flow, opposing flow, traffic composition, kerb-side parking, signalised intersections, unsignalised intersections and land use.