Question

Traffic capacity is defined as:

• A. Ability of roadway to accommodate traffic volume in terms of vehicles per hour
• B. Number of vehicles occupying a unit length of roadway at a given instant expressed as vehicles per km
• C. Capacity of the lane to accommodate the vehicles width wise (across the road)
• D. Maximum attainable speed of the vehicles

Hint:

Remember: Capacity = maximum flow (vehicles/hour), Density = number of vehicles/km, Speed = distance/time.

Answer 1

The Correct Option is A

Step 1: Understanding traffic capacity.
Traffic capacity is the maximum number of vehicles that can pass a given point on a lane or roadway during a specified time period under prevailing conditions.

Step 2: Analysis of options.
- (A) Correct: This matches the standard definition of traffic capacity (vehicles per hour).
- (B) Incorrect: This defines traffic density, not capacity.
- (C) Incorrect: This relates to physical width, not capacity.
- (D) Incorrect: This defines speed, not capacity.

Step 3: Conclusion.
Hence, traffic capacity is correctly defined as option (A).