Q.24 Assertion (A): When a sharp horizontal curve is to be introduced on a road which already has the maximum permissible gradient, then gradient should be decreased. Reason (R): The gradient should be decreased to compensate for the loss of tractive effort due to the introduction of sharp horizontal curve on the road.

Q: A horizontal curve has two lanes per direction. The radius, measured to the center marking that…

A: In communication lines, curves are typically used to ensure a smooth change in direction at the…

Q: Design rate of super elevation for horizontal highway curve of radius 450 m for a mixed traffic…

A: Radius of the curve R=450 m, Speed V=125 km/hour, To Find- The value of the design rate of super…

Q: For a proposed road alignment, visibility is restricted to 257 m only. The values of various design…

A: Solution: Given: Reaction Time (RT)=2.0sec Design Speed (V)=93km/h Grade (a)=-1.9% We know that…

Q: Q1) The project speed is 100 km/h on a divided state road with a vertical curve. The driver's…

A: Designed speed (V) = 100 kmphReaction time (t) =  2 secFriction coefficient (f) = 0.4Elevation and…

Q: A vertical curve was designed in 2005 for SSD requirements at a design speed of 120 km/h to connect…

A: Answer Based on Autralian guidelines, SSD is calculated using SSD = 0.278*v*t+v2254*f Where SSD =…

Q: b. A section of a highway has vertical and horizontal curves with the same design speed. A vertical…

A: Length of horizontal curve : Length of horizontal curve (L) =N *S2(2H+2h)2 N is the rate of change…

Intersection Design

An intersection is a location where two or more roads or railways meet or join. The traffic movement is controlled at the intersection that depends on its design and type. It governs the operation, efficiency, speed, capacity, and safety of the highways, airways, and railways. The movement of the pedestrian causes hazards and delays at the intersection.