CLASSIFICATION OF ROADS
Types of Roads
The different types of roads are classified into two categories, depending on whether they can be used during different seasons of the year
i) All-weather roads and
(ii) Fair-weather roads. All weather roads are those which are negotiable during all weather,except at major river crossings where interruption to traffic is permissible
up to a certain extend.
#Based on the type of the carriage way or the road pavement, the roads are classified as
i) paved roads, if they are provided with a hard pavement course which should be
atleast a water bound macadam (WBM) layer and
(ii) unmpaved roads, if they are not provided with a hard pavement course of atleast a WBM layer. Thus earth roads and gravel roads may be called unpaved roads.
#Based on the type of pavement surfacing provided; the road types are divided as:
i)surface roads, which are provided with a bituminous or cement concrete surfacing
and
(ii) unsurfaced roads which are not provided with bituminous or cement concrete surfacing. The roads provided with bituminous surfacing are also called black toped roads.
Nagpur Road Plan classified the roads in India based on location and function into following five
categories and described in section 2.4.3.
i. National Highways (NH)
(ii) State Highways (SH)
iii) Major District Roads (MDR)
(iv) Other District Roads (ODR) and
(v)Village Roads (VR)
