# The Mechanical Widening of the Curve is Given by

By BYJU'S Exam Prep

Updated on: September 25th, 2023

The mechanical widening of the curve is given by-

1. Wm=nl²/2R
2. Wm=nl/2R
3. Wm=nR²/2l
4. None of the above

## The mechanical widening of the curve is given by Wm=nl²/2R.

Solution

Extrawidening is the extra width of road provided on the horizontal curve

Extrawidening is provided to-

• Avoid the offtracking of the vehicle
• To account lateral skidding
• To confront the psychological tendency of the driver
• To increase the visibility at curves

Types of Extra Widening-

1. Mechanical Widening: The Mechanical Widening of the Curve is given by Wm=nl²/2R
2. Psycological Widening: WP=V/9.5 √R

Total Extra Widening

We=Wm + WP

We=nl²/2R + V/9.5 √R

Where,

We – Total Extra Widening

Wm– Mechanical Extra Widening

WP – Psychological Extra Widening

n – Number of lanes

l – Length of wheel base

R – Radius of the curve

V – Speed in Kmph

### ☛ Related Questions:

POPULAR EXAMS
SSC and Bank
Other Exams
GradeStack Learning Pvt. Ltd.Windsor IT Park, Tower - A, 2nd Floor, Sector 125, Noida, Uttar Pradesh 201303 help@byjusexamprep.com