Question

The length of roadway between adjacent radial routes around a traffic roundabout is called

• A. Chord length
• B. Arc length
• C. Weaving length
• D. Radial length

Hint:

In a rotary intersection, \[ \boxed{ \text{Weaving Length} = \text{Distance between successive entry and exit points.} } \]

Answer 1

The Correct Option is C

Step 1: Picture what happens at a rotary.
Vehicles entering a roundabout at one leg have to travel alongside vehicles leaving at a different leg, so for a short stretch traffic moving in roughly the same direction merges together before splitting apart again.
Step 2: Name that stretch of road.
This stretch, where merging and diverging traffic streams travel side by side along the same direction before separating, is what traffic engineers call the weaving length of the rotary.
Step 3: Rule out the other terms.
Chord length and arc length are purely geometric measurements of the circular island, and radial length is not a standard traffic term, so none of them describe the actual behaviour of merging traffic the way weaving length does.
\[ \boxed{\text{Weaving Length}} \]