Hi,Design of pavement consist of two parts: Design of the mix to be used as the material for different layers. Design of the thickness of the different pavement layers. In this post I will discuss here the various factors which are considered while designing the pavement thickness. Design Wheel Load Type of sub-grade Climatic conditions […]
Factors Affecting Design of Pavements Read More »
Hello there,Stopping site distance, Overtaking sight distance and Sight distance at intersections are important to study and check for the design of the highways. Sight distance at the intersections: IRC recommends that at non-controlled intersections, sufficient visibility should be provided such that sight distance on each road is at-least equal to SSD corresponding to the
Sight Distance at Intersections Read More »
Traffic Signs: These should be mounted on sign posts pointed alternatively with 25 cm black and white band. Regulatory signs: These are used to inform road users of certain laws, regulations and prohibitions. Warning signs: These are used to warn the road users of certain hazardous conditions that exist on or adjacent to the roadway.
Traffic signs and Rotary intersection – (Traffic Engineering) Read More »
Hello there,How have you been? Here is another round of one liners for your preparation for the GATE and PSUs examinations. Ratio of width of the car parking area required at kerb for 30 degree parking relative to 60 degree parking is approximately 0.5 Load carrying capacity of rigid pavements depends more on the properties
One liners – Transportation Engineering for GATE, PSUs – Part 10 Read More »
Hello there,How have you been? Here is another round of one liners for your preparation for the GATE and PSUs examinations. For Sandy soils, most common method of stabilization is Soil bitumen stabilization. For bituminous or asphalt concrete, proportioning of materials is determined from laboratories. Limiting gradient on highways is associated with the requirement of
One liners – Transportation Engineering for GATE, PSUs – Part 9 Read More »
Hello there,How have you been? Here is another round of one liners for your preparation for the GATE and PSUs examinations. The aggregates required for one kilometers length of water bound macadam road per meter width and for 10 mm thickness is 12 cubic meter. The camber of shoulders in water bound macadam roads is
Transportation Engineering Quick Revision Notes for GATE, PSUs – Part 8 Read More »
Hello there, How have you been? Here is another round of one liners for your preparation for the GATE and PSUs examinations. Bottom-most layer of a pavement is called Sub-grade. Flexible pavement distribute the wheel load through a set of layers to the sub-grade. The number of repetitions, which the pavement thickness designed for a
One liners – Transportation Engineering for GATE, PSUs – Part 7 Read More »
Hello there, How have you been? Here is another round of one liners for your preparation for the GATE and PSUs examinations. A traffic rotary is justified where number of intersecting roads is between 4 to 7. When a number of roads are meeting at a point and only one of the roads is important,
One liners – Transportation Engineering for GATE, PSUs – Part 6 Read More »
