The Carriageway Width is the width of road including shoulders and auxiliary lanes devoted to the use of vehicles.

What is clearance and width of carriageway?

Width of the carriage way or the width of the pavement depends on the width of the traffic lane and number of lanes. ... This require minimum of lane width of 3.75 m for a single lane road. However, the side clearance required is about 0.53 m, on both side and 1.06 m in the centre.

How the carriageway width is calculated?

The carriageway breadth depends upon the traffic lane breadth and number of lanes. As per IRC specifications for carriageway breadth, the highest permissible vehicle breadth is 2.44 m. The suitable side clearance for single lane road is 0.68 m (on both sides). The least road breadth must be 3.75 m.