Correct option is D
Crossing Angle at Road-Rail Level Crossings:
At a road-rail level crossing, the crossing angle refers to the angle between the road and the railway track.
To ensure safety and visibility for vehicles and trains, the crossing angle should be large enough to allow proper alignment of the road with the track and reduce the risk of accidents.
Minimum Angle Requirement:
The crossing angle should NOT be less than 45° to ensure proper sightlines and safe movement of vehicles across the tracks.
