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Showing posts with the label Highway Impotant Topic

CAUSEWAY IN ROAD OR BRIDGE- HOW TO MAKE ESTIMATE OF CAUSEWAY CONSTRUCTION IN ROAD

DEFINITION  OF CAUSEWAY  IN ROAD- A cause way is a track of road, railway on the highest point or upper point of an embankment across a water logged area or a low or wet place. It is called as causeway in road.                                                           OR A road causeway is paved dip which allows the rain water or floods to pass over it. It may or may not have opening or vents for low water to flow in the road. It is called as causeway in road. Road causeway Causeway may have been constructed to natural wet land, such as canal or such as marshes land etc. Causeway used to easily moved traffic over the wet land or canals extra. The traditional meaning of a...

What is Gradient in Highway - vertical Alignment of highway-Types of Camber and and Formula for Providing camber

Gradient, the rate of rise and fall of a highway surface along the length of the highway is termed as gradient. It is usually expressed as a ratio of 1vertical in n horizontal. For example if a highway surface falla in 4m in a horizontal distance of 200m measured along the length of the highway, the highway gradient is 1 in 50.sometimes is alost expressd as percentage.  Gradient Types of gradient: 1) Maximum gradient 2) Ruling gradient 3) Minimum gradient 4) Exceptional gradient Maximum gradient in plain area is 1 in 20 and hilly area 1 in 15 Ruling gradient in plain 1 in 30 and in case hilly 1 in 20 In case Exceptional gradient, 1 in 15 in plain and 1 in 12 in hilly areas . What is Vertical Alignment of Highways The vertical alignment of highway generally defined as the presence of  depths and height  in vertical axis with respect to horizontal axis of alignment. These depths and  heights  in roads may be in the form of gradients (stra...

What is Camber in Road - Types of Camber and Advantage of camber & Method of providing

Today discuss about camber in Road , the convexity Or slope provide to the cross section of the surface of carriage way to quickly drain off water. It's called as camber. The slope of the line joining the crown and the edge of the highway surface. camber in road A steep camber is preferred in areas of heavy rainfall and a flat camber in regions of low rainfall. Generally in heavy rainfall prprovideing 1in 50 and 1in 25. The design values of cambers are primarily based on the type of pavement of r0ad and also on the average amount of rainfall in the particular area. Steep cambers are useful for eliminating surface water. But they are not recommended since they will wear down the road surface. Generally, cambers of slope 2 to 3% are arranged. On straight sections of roads, they are shoulders with higher cross fall relating to that of the carriageway by 0.5 percantage. Types of camber-: There are normally three types of cambers provided along the road surface, ...