The length of road per sq km of area is known as road density. Road transportation in India faces a number of problems. Three of them are given below:
(i) Keeping in view the volume of traffic and passengers, the road network is inadequate.
(ii) About half of the roads are unmetalled and this limits their usage during the rainy season.
(iii) The roadways are highly congested in cities and most of the bridges and culverts are old and narrow.
(iv) The National Highways are inadequate too.
