766. Walking in transport roads in regard to mines.

Persons may walk a length of road1 while vehicles are in motion under certain conditions: namely, at mines other than mines of coal, stratified ironstone, shale or fireclay, if there is a continuous2 clear space of at least 600 mm in width between the vehicles and one side of the road or if the maximum speed of the vehicles does not exceed 2.7 metres per second3; and, at mines of coal, stratified ironstone, shale or fireclay, if there is such a continuous clear space of at least 600 mm in width and the maximum speed does not exceed 4.5