Highway planning is of great importance when the funds available are limited, whereas the total requirement is much higher.
The objective of highway planning are as follows:-
- To plan the overall network of roads efficiently at minimum cost.
- To divide the overall plan into phases to decide the priorities.
- To plan the future requirement and improvement of roads.
Classification of Roads
- Roads are classified on the basis follow as:-
- On the basis of duration of their use.
- All weather roads
-paved and unpaved roads.
- Fair weather roads
-surface and non surfaced roads.
- On the basis of traffic volume.
- On the basis of load transferred.
- On the basis of location and function.
- National highway
- State highway
- Major district roads
- Ordinary district roads
- There are main highways running through the length & width of the country connecting major portions,foreign highways,capital of large state and large industrial areas,tourist destinations,places of strategic importance (DEFENSE).
- State highways are arterial roads of state connecting the national highways of adjacent state,district & important cities.
- MDR are important roads within a district serving area production, market & connecting with their major roads and state highways.
- ODR are the seeds serving rural areas of production & providing them the outlet to the market.
- VR are roads connecting villages or groups of villages each ODRs.
- NOTE-Urban roads are also classified as follows
- Arterial Roads
- Sub -Arterial Roads
- Collector street
- Local street
- Rectangular or Block
- Radial or Star & Block
- Radial or Star & Circular
- Radial or Star & Grid