. OPERATION DETERMINING AND MAINTAINING TRAVEL ROAD 3 - 115 DETERMINING AND MAINTAINING Determining and tra veling the road in the jobsite is an ext remely important factor both f or reasons of s afety and for reducing the cycle ti me.To ensure safety in operations, d DETERMINING TRAVEL ROAD ravel. As far as possible , restrict the travel road to one-way t If it is impossible t o keep to one-way traffic, make the ro ad with ample width to enable truck s travelin g in opposite directions to pas s each other. If it is impossible to provide a sufficient road width, provide passing places at ng the road. e road so that the loaded truck passes on the side closest to the hill face.
s with poor visibility along the road, set up mirrors. various points alo Always design th e road so that the loaded truck passe s on the side closest to the h ill face If there are curve s with poor visibility along the road, s In places where th e road should is weak or likely to colla pse, set up a sign at a point a t least 1.5 m (4 ft 11 in) from the road shoulder to warn of the danger. he road to be traveled at night. x. 6°) as far as possible, and emergency escape points ke failure.
It is important to s et up lighting or reflectors to enable t he road to be traveled at nigh The grade of slop e should be kept within 10% (appro should be set up on downhill slopes in case of any bra Make the road as straight as possible, and particularly in intermediate areas with cu rves, where the machine is traveling at high s peed, make the radius of the curve a s large as possible. Small S curves ar e particularly dangerous, so avoid su ch curves. The radius of the c urve m ust be a minimum of 12 to 15 m (39 ft 4 in to 49 ft 3 in). f curves as large as possible. as. on the outside of curves. oads cross it.
In particular, if roads cross at an angle on Make the radius o Make the road wi der at curves than it is in straight are Make the outside of the curve slightly higher. Be particularly ca reful to strengthen the road shoulder As far as possibl e, design the road so that no other r roads on slopes, a stepped difference is formed in the road. This is extremely dangerous, as i t causes the ma chine to r oll when traveling at high speed. e to provide a special road for the trucks. Cut the slope fac e to provide a special road for the tru MAINTAINING TRAVEL ROAD Carry out the neces sary action according to the condition s to insure that the road can a lways be travel ed in safety.
Remove any une venness in the travel surface, sloping to the left or right, or drooping of the road sho ulder. Make the road of ample strength and remove such obstacles as rocks and tree stumps. motor grader. nt dust from rising and reducing the visibility. Maintain the road from time to time with a bulldozer or Spray the road wi th water at suitable intervals to preve nt dust from rising and reduc ing the visibility