IRC Lateral Coefficient of Friction Standard
The Indian Roads Congress (IRC) specifies standard values for various engineering parameters in road design. The lateral coefficient of friction is a crucial factor considered for vehicle safety and stability, especially on curves.
According to relevant IRC codes, the standard value for the lateral coefficient of friction is established.
- Lateral Coefficient of Friction (IRC): 0.15
This value represents the minimum friction required between the tires and the road surface to maintain control under lateral forces, as recommended by the IRC.
Important Questions from Highway Geometric Design
The rate of super-elevation for a horizontal curve of radius $500 \text{ m}$ in a national highway for a design speed of $65 \text{ kmph}$ is:
Consider the following statements about grade compensation:
(i) Grade compensation is given up to the maximum value of '75/R', where R is the radius of circular curve in metres.
(ii) According to Indian Roads Congress, grade compensation is not necessary for gradients flatter than 4 percent.
Which of the above statement/s is/are correct?
The type of transition curve that is generally provided on hill road is
The minimum design speed adopted where hair-pin bends are provided at hill roads is _________.
The rear wheels do not follow the same path as that of the front wheels. This phenomenon is called:
