(a) The speed at which haulage equipment is operated should be
determined by the condition of the roadbed, rails, rail joints, switches,
frogs, and other elements of the track and the type and condition of the
haulage equipment.
(b) Track haulage roads should have a continuous clearance on one
side of at least 24 inches from the farthest projection of normal traffic.
Where it is necessary to change the side on which clearance is provided, 24
inches of clearance should be provided on both sides for a distance of not
less than 100 feet and warning signs should be posted at such locations.
(c) Track haulage roads developed after March 30, 1970, should have
clearance on the "tight" side of at least 12 inches from the farthest
projection of normal traffic. A minimum clearance of 6 inches should be
maintained on the "tight" side of all track haulage roads developed prior to
March 30, 1970.
(d) The clearance space on all track haulage roads should be kept
free of loose rock, supplies, and other loose materials.
(e) Positive stopblocks or derails should be installed on all tracks
near the top and at landings of shafts, slopes, and surface inclines.