# Dimensions of Level Crossings

Some of the important dimensions of square A class and B class level crossings are given in Table 23.1. It may be mentioned here that the angle of crossing between the centre line of the railway and the road should not be less than 45°.

Table 23.1 Dimensions of A class and B class level crossings

 Description of item A class level crossing on a class-I road B class level crossing on a class-II road Maximum width of gates 9 m 7.5 m Minimum length of guard rails 11 m 9.5 m Position of gates when open to road traffic Always from or towards, but not across, the line Same as A class Maximum distance of gate post from the centre line of the track 3 m 3 m Maximum distance of gate lodge from the centre line of the nearest track 6 m 6 m Minimum width of metalled road Same as the width of the Same as the width of between gates Level and gradients gate the gate (a) between gates Level Level (b) beyond gates Level up to a distance of 8 m; a grade of 1 in 30 beyond that Level up to a distance of 8 m; a grade of 1 in 20 beyond that Minimum length of road outside the gates 22.5 m 15 m Minimum fencing on lines parallel to the track 15 m 15 m Provision of light indicators at the gates for the benefit of road users Red when the gate is closed and white when it is open to road traffic Same as A class