There exist great variations in the distribution of roads in India
The length of National Highways passing through a state is not always a true index of economic well being of a state, as they serve only the main routes
Ex: Bihar has some of the longer route length of National highways, still is Economically backward compared to other states
But, the length of state highways could be a better index of road accessibility at the state level
An index of road accessibility, is the density of roads, which is defined as the length of roads per 100 sq.km of surface area
A representation of road densities in India is as follows:
