. OPERATION DETERMINING AND MAINTAINING TRAVEL ROAD DETERMINING AND MAINTAINING TRAVEL ROAD Determining and traveling the road in the jobsite is an extremely important factor for reasons of safety. To ensure safety in operations, do as follows. 3 - 127 DETERMINING TRAVEL ROAD To prevent contact with machines trave ling in the opposite direction, restrict the travel road to one-way traffic as far as possible. If it is impossible to keep to one-way traf fic, make the road with ample width to enable trucks traveling in opposite directions to pass each other. If it is i various points along the road.
To avoid the danger of the road should mpossible to provide a sufficient road width, provide passing places at er collapsing, set up the passing places so that the loaded machine is face). ong the road, set up mirrors. places always on the inside (next to the slope If there are curves with poor visibility al If the road shoulder is soft or liable to c ollapse, put up signs at least 1.5 m from the road shoulder to w arn of t he danger. s to be travelled at night. Set up lighting or reflectors if the road i The grade of slope should be kept withi n 10% (approx. 6 deg.) as far as possible, and emergency esca pe points should be set up on downhill slopes in case of any brake failure.
Make as many straight stretches on the travel road as possible. In particular, make the radius of curve s as large as possible at the midway point, where the machine is traveling at high speed. larly dangerous. The minimum radius of curves should be 12 - 15 m. ossible. in straight areas. igher. road shoulder on the outside of curves. oads cross the travel road. In particular, on slopes, where the crossing Avoid small S-curves. They are particu larly dangerous. The minimum radius of curves should be 12 - 15 m.
Make the radius of curves as large as p Make the road wider at curves than it is Make the outside of the curve slightly h Be particularly careful to strengthen the As far as possible, avoid having other r crossing road is higher on one side, a ramp is fo strongly to the side. This will not only c rmed on the travel road, and machines traveling at high speed will sway ause spillage of the load but will also hinder travel operations. road for the trucks. Cut the slope face to provide a special MAINTAINING TRAVEL ROAD Perform the necessary action according t o the conditions to insure that the road can always be traveled in safety.
Remove any uneven places on the roa d surface, places where the road is angled to the left or right, a nd places where the road shoulder sags. To ensu obstructions. re that the road has ample strength, remove rocks, tree stumps , or other a bulldozer or motor grader. tervals to prevent dust from rising and reducing the visibility. Maintain the road from time to time with Spray the road with water at suitable in