GATE 2023 Transportation Engineering Quiz 51

A vehicle is driven by rear wheel, where rear wheel exerts a tractive force in straight direction. During movement on curve front wheel turned to degree. Tractive force available on the front wheel in turned direction is twice the curve resistance, then value of is _________

A two lane, one way road with radius of 60 m is predominantly carrying lorries with wheelbase of 6 m. The speed of lorries is restricted to be between 70 kmph to 90 kmph. The mechanical widening and psychological widening required at 70 kmph are designated as W_{me, 70} and W_{ps, 70} respectively. The mechanical widening required at 90 kmph are designated as W_{me, 90} and W_{ps, 90} respectively. The correct values of W_{me, 70}, W_{me, 90}, W_{ps, 70}, and W_{ps, 90} respectively are

Which of the following are considered in the geometric design of highway?

i. Cross-Section elements

ii. Sight distances

iii. Vehicle characteristics

iv. Intersection elements

What is the super elevation for a horizontal highway curve of radius 500 m and speed 100kmph in mixed traffic condition?

The design speed of a highway is 80 kmph, and the radius of the circular curve is 150 m in plain topography. The length of the transition curve will be _____ m.

A descending gradient of 4% meets an ascending gradient of 1 in 40, where a valley curve of length 210 m is to be formed. The distance of the lowest point on the valley curve (in m) from its first tangent point will be _____ m (Round off to 1 decimal place)