Dowel Bar Dowel bar: Dowel bars of expansion joints are mild steel round bars of short length. Half-length of bar bonded in one cement c...

Stabilization a broad sense incorporates the various methods employed for modifying the properties of soil improve its engineering perfo...

The solution of bituminous material in a volatile solvent is known as cut-back. A Cut back asphalt contains nearly 80% bituminous m...

The residual product obtained by destructive distillation of organic matter such as coal, oil, wood, etc. is known as tar. The road...

Bitumen may define as a solid or semi-solid, black, sticky, ductile substance, obtained as an important by-product from the distillat...

The third twenty-year road development plan was prepared by the road wing of the ministry of shipping and transport with the cooperatio...

In 1956 the ‘National High Act’ was passed in the country. Some of the main features of the act are: 1) To declare certain selected h...

The Nagpur Road plan classified the roads in India based on location and functions into the following five categories: National Highwa...

Jayakar Committee submitted its report in the year 1928. The most important recommendations made by the Committee are: 1) The road d...

When the wearing surface of the road consists of cement concrete slab, it is called a cement concrete road. These roads are said to be ...

Bituminous roads are those which are painted with bituminous materials at its surface. These are high-cost roads. The main funct...

Water Bound Macadam Road The Water Bound Macadam Road is constructed in very ancient days. The roads having their wearing surface ...

The roads which consist of one or two layers of compacted gravel mixed with sand and clay are called gravel roads. These roads are cons...

Road alignment is the position occupied by the centerline of a road in the plan. The centerline of the road is marked before it...

The importance or the necessity of highway transportation can be judged from the following advantages of roads: 1) The roads facil...

The District Roads traverse each district serving areas of production and markets, industries, residential areas, railway stations, and...

It is the highway which connects important cities and towns in a state or important cities and district headquarters with National Hig...

It is a separate class of highways with superior facilities and design standards and is meant as through routes having a very high...

All the main highways running through length and breadth of the country, connecting major ports, capitals of States, foreign highways...