Nagpur Road classification
In Nagpur road classification, all roads were classified into five categories as National highways, State highways, Major district roads, Other district roads and village roads.
They are main highways running through the length and breadth of India connecting major ports , foreign highways, capitals of large states and large industrial and tourist centers including roads required for strategic movements.
It was recommended by Jayakar committee that the National highways should be the frame on which the entire road communication should be based.
All the national highways are assigned the respective numbers.
For e.g. the highway connecting Delhi-Ambala-Amritsar is denoted as NH-1 (Delhi-Amritsar), where as a bifurcation of this highway beyond Fullundar to Srinagar and Uri is denoted as NH-1_A.
They are constructed and maintained by CPWD.
The total length of National highway in the country is 58,112 Kms, and constitute about 2% of total road networks of India and carry 40% of total traffic.
They are the arterial roads of a state, connecting up with the national highways of adjacent states, district head quarters and important cities within the state
They also serve as main arteries to and from district roads. Total length of all SH in the country is 1,37,119 Kms.
Major district roads
Important roads with in a district serving areas of production and markets , connecting those with each other or with the major highways.
India has a total of 4,70,000 kms of MDR.
Other district roads
Roads serving rural areas of production and providing them with outlet to market centers or other important roads like MDR or SH.
They are roads connecting villages or group of villages with each other or to the nearest road of a higher category like ODR or MDR.
India has 26,50,000 kms of ODR+VR out of the total 33,15,231 kms of all type of roads.