Transportation Engineering

Los Angeles abrasion test is used to check the hardness of the aggregates. Procedure for Los Angeles Abrasion test  … [Read more...] about Los Angeles Abrasion test | Test for road aggregates

Traffic Signs Traffic signs are means of warning, regulating and informing the drivers. Material for traffic signs Material should be such that … [Read more...] about Types of traffic controlling devices | Traffic Signs

Traffic controlling devices The devices which are used to control and regulate the flow of traffic are called traffic controlling devices. These are of three types: Pavement markings. Traffic signs. Traffic signals. Pavement markings Pavement markings are in the form of bands or strips of paints, which are … [Read more...] about Traffic controlling devices | What are pavement markings

Lane occupancy Lane occupancy is the ratio of the sum of the lengths of the vehicles to the length of the road section in which those vehicles are present. … [Read more...] about What is Lane occupancy ?

Traffic density Traffic density is the number of vehicles occupying a given length of the highway in a traffic lane.  It is expressed as vehicle/mile or vehicle/kilometer. … [Read more...] about Definition of traffic density | Headway and Spacing | Clearance and Gap

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. … [Read more...] about Definition of Sight distance | Stopping and passing sight distance

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. … [Read more...] about Definition of Super Elevation | How we provide super elevation in the field ?

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. … [Read more...] about Definition of road camber | Factors on which camber height depends

Road median Road median is the portion in between the dual carriage way which separates the traffic flow in opposite direction. … [Read more...] about Definition of road median and its purposes | Types of road medians