check list for road safety measure
Hello, friends today I am going to share about the check list for road safey measure.
A. A minimum 100 mm thickness of pavement GSB layer constructed to the full roadway width.
B. Shoulder side slopes are not be steeper than 2H: 1V unless stone pitching of the slope is provided.
C. Speed breakers as per NRRDA circular comply with the requirements of IRC: 99 – 1988 for general traffic.
D. speed breakers placed at the threshold of a habitation and at regular intervals (150-200 m) through the habitation.
E. within habitation, wherever deep side drains are constructed either within or adjacent to the roadway, is covered by slabs laid level with the adjacent pavement and capable of being manually removed.
F. in habitation where child playing areas border the road ,a low profile wall raised kern or boundary marking ( depending on the site condition ) , is constructed to create a physical boundary and act as a deterrent to the random movement of a child onto the road.
G. on roads where , because of the lack of dry land in the general area, the shoulder will be continually occupied and only intermittently available for traffic ,speed breakers are installed at regular intervals ,not more than 300 m apart ,for the entire length of the road.
H. The drawings show all obstructions in the proposed road shoulder with a note that the obstruction is to be removed.
I. if a shoulder obstruction cannot be removed, hazed markers are installed to mark the obstruction.
J. Hazard markers are installed at all pipe culvert headwalls.
K. Hazard markers are installed at each end of all box culvert, river crossing causeways and similar CD structures.
L. Hazard markers are installed at any discontinuity in the shoulder.
M. Directional sight boards are installed on all sharp curves and bends.
N. Speed breakers are provided at sharp curves and bends where the curve design speed is less than 40km/h in mountainous and steep terrain.
O. Speed breakers are provided and directional sight boards installed at sites where reverse horizontal curves are closely speed reduction is required.
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