Classification of Road:

Road are classified as follows

1.On the basic of duration of theirs use

• All Weather Road

  •  Paved and Non Paved Roads.

• Fair Weather Road

  •  Surface and Non Surface Roads.

2.On the basis of traffic volume

• Light Traffic Roads

  • The roads which are carrying 400 vehicles daily on an average is called light traffic roads.

• Medium Traffic Roads

  •  If a road is carrying 400 to 1000 vehicles per day, then it is said to be a medium traffic road.

• High Traffic Roads

  •  If a road is carrying is more than 1000 vehicles per day then it is considered as high traffic road.

3.On the basis of load transported.

4.On the basis of location and function.

• National Highways (NH)

  •  National Highways  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 for the defense of India.

• State Highways (SH)

  •  State Highways are arterial roads of a state, connecting up with the national highways of adjacent state, district head quarters and important cities within the state and serving as the main arteries for traffic to and from district roads.

• Major District Roads (MDR)

  •  MDR are important roads with a district serving area of production, materials and connecting with other major roads and state highways.

• Other District Roads (ODR)

  •  ODR roads serving rural areas of production and providing then the outlet to the market.

• Village Road (VR)

  •  VR are the road connecting village or village of groups with each and ODR.

Note: Urban roads are also classified as follows

• Arterial Road
• Sub Arterial Road
• Collector Streets
• Local Streets

Types of Road Pattern

The various types of road pattern may be classified as follows:

• Rectangular or Block Pattern

• Hexagonal

• Radial or Star and Block

• Radial or Star and Circular

• Radial or Star and Grid

Introduction & Highway Development and Planning

• Introduction of Transportation.
• Development of Road.
• Development of Roads In India.
• Classification of Road & Types of Road Pattern.
• Engineering Surveys For Highway Alignment & Maximum Saturation System / Utility Factor System.