Definition of speed | Traffic volume and Traffic rate of flow

Sunday, May 19, 2013 15:29


Distance covered by vehicle in unit time is known as speed.

Its units are miles/hour or km/hr. Continue Reading »

Definition of Sight distance | Stopping and passing sight distance

Tuesday, May 14, 2013 19:46

Sight distance

The clear distance ahead of vehicle which is visible to the driver is known as sight distance.

If suitable sight distance is not provided on the curves, then highway become accidential spot. Continue Reading »

Definition of Super Elevation | How we provide super elevation in the field ?

Tuesday, May 14, 2013 14:47

Super Elevation

Whenever on roads, curve has to be made, outer edge of the road on the curve is raised as compared to the inner edge. This is known as super elevation. Continue Reading »

Harmful effects of water logging and salinity

Sunday, May 12, 2013 17:24

Harmful effects of water logging and salinity

Harmful effects of waterlogging and salinity are caused by unthoughtful planning of irrigation system.

With respect to water logging and salinity, there are following harmful effects: Continue Reading »

Definition of salinity

Thursday, May 9, 2013 14:29

Definition of salinity

When the water table is close to the surface, and the water rises to or very close to the ground surface, evaporates Continue Reading »

Definition of waterlogging

Thursday, May 9, 2013 12:51

Definition of waterlogging

When the water table rises to such heights that the soil pores in the root zone become saturated, thus displacing the air, the land is said to be water logged. Continue Reading »

Definition of road camber | Factors on which camber height depends

Saturday, April 20, 2013 0:35

Road Camber

The convexity or curvature of the road to avoid staying of water is known as camber. The highest point of camber is known as crown. Continue Reading »

Definition of road median and its purposes | Types of road medians

Friday, April 19, 2013 15:00

Road median

Road median is the portion in between the dual carriage way which separates the traffic flow in opposite direction. Continue Reading »

Definition of irrigation outlet or Mogha or Turn out & its Essential requirements

Tuesday, April 16, 2013 14:24

Definition of irrigation outlet or Mogha or Turn out

An irrigation outlet or Mogha in Pakistan or turn out in USA or other countries, is a hydraulic structure conveying irrigation water from a state-owned distributory or a minor to a privately owned water course. Continue Reading »

Definition of water hammer pressure | Effects of water hammer

Sunday, April 14, 2013 15:15
Posted in category Hydraulic Engineering

Definition of water hammer pressure

Water hammer pressure is defined as:

The sudden increase in pressure in the pipe lines due to reduction in velocity in a very short time is known as water hammer pressure. Continue Reading »