The different types of roads are classified based on the below classifications:
(i) Expressways: Expressways, as the name suggests it is that features two or more traffic lanes in each direction, with opposing traffic separated by a median strip it has controlled entries and exits and advanced designs eliminates steep grades, sharp curves, and other hazards and inconveniences to driving.Currently, the longest expressway in India is the Purvanchal Expressway at 340.8 km (211.8 mi) and the widest expressway is the Delhi–Meerut Expressway at 14 lanes.
(ii) Highways: Highways connect villages to cities or cities to cities or state to state or the roads connecting the state capital to the national capital are called highway Generally laid in two lanes, it can be extended up to 6 lanes and are classified as National highway, State highways,Urban Highways and Rural highways.
(iii) Street Roads: With permitted minimum speed, street roads have various functions, where local markets function, more pedestrians moving in and out, loading and unloading process are carried out, street roads are generally the busiest one in short distance.
(vi) Based on Materials Used: They are designed for low volume work operation, they are made by the soil available around the area. Soil is laid for two three layers and later compacted and used, which is the cheapest one.
(v) Gravel roads: It is the second cheapest road, which is better than earthen roads. In this, a mixture of soil and gravel is paved and compacted, also called as metal roads. Generally, these types of roads are built in villages.
(vi) Murram Roads: It is gravelly lateritic material which occurs during the disintegration of igneous rocks by weathering agencies. The road is laid by Murram, so it gets this name and provides greater finish life compared to earthen and gravel roads.
(vii) Bituminous Roads: Bituminous is a black viscous and adhesive material that occurs during the distillation of petrol. It provides greater finish than any of the types and provides smoothness for a longer period.
(viii) Concrete Roads: These roads are laid in cement concrete material and its costlier among all types of roads. These roads are recommended for high traffic places and take more time to construct. The average life of concrete roads is 40 years whereas the bituminous roads have an average life of 3 years.