While aligning a high way in a built up area, it was necessary to provide a horizontal circular curve of radius 325 metre. The design speed is 65 kmph, length of wheel base of largest truck width of pavement is 10.5 m. Design the following geometric features: (i) Superelevation (ii) Extra widening of pavement (iii) Length of transition curve. 6.0 m and %3D

Q: 3. A rural highway has a +6% grade on a mountainous region. If the maximum and mini- mum speed limit…

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Q: Listen In superelevated two-lane roadways, the pavement is normally rotated about its: 01 Centerline…

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Q: . While designing a hill road with a ruling gradient of 6%, if a sharp horizontal curve of 50 m…

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Q: g vertical curve has a -3% down grade followed by a +3% upgrade. the design height of the headlight…

A: SSd=423ft h'=2ft to find length of sag curve

Q: From the Figure, determine the minimum length of the curve. Assume a=11.2 ft/sec and…

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Q: A car is traveling at 30 mph in the country at night on a wet road through a 273 ft. long crest…

A: G1 = 4% = 0.04 G2 = -3% = -0.03 L = 273 ft

Q: 1) For a roadway section of 2-lane pavement (assume lane width of 12 ft) if the design speed 40 mph…

A: Lw = 12 ft V = 40 mph e = 0.08NOTE : As per guidelines, first question is solved. Request you to…

Design of pavements

Pavement is a structure that is made up of different layers such as sub-base course layer, base course layer, binder course, and a surface course formed with different materials such as gravel, above the subgrade soil constructed to act as a path or carriageway enabling the movement of vehicles. The surface of the pavement should possess characteristics such as adequate friction, light reflection, and drainage. The pavements are classified based on structural design into rigid pavements, flexible pavements, composite pavements, and unpaved pavements. The process of determining a suitable pavement type, its constituent layers, and its thickness is called pavement design.