According to IRC guidelines, the maximum volume of traffic that a rota...
The Maximum Volume of Traffic that a Rotary can Efficiently Handle
The answer to this question is option 'B', which states that a rotary can efficiently handle 3000 vehicles per hour entering from all legs of the intersection. Let's delve into the details to understand why this is the correct answer.
Understanding Rotary Intersections
A rotary intersection, also known as a roundabout, is a type of intersection design that aims to improve traffic flow and reduce accidents. It features a circular road with multiple entry and exit points, allowing vehicles to enter and exit the intersection smoothly without the need for traffic signals.
Factors Affecting Rotary Efficiency
The efficiency of a rotary intersection depends on various factors, including the size of the roundabout, the number of lanes, the geometry of the intersection, and the traffic demand. To ensure smooth traffic flow and safety, certain guidelines are followed.
IRC Guidelines
The Indian Road Congress (IRC) provides guidelines for the design and operation of rotary intersections. According to these guidelines, the maximum volume of traffic that a rotary can efficiently handle is 3000 vehicles per hour entering from all legs of the intersection. This means that the total number of vehicles entering the roundabout from all directions should not exceed 3000 vehicles per hour.
Reasoning Behind the Answer
The maximum volume of traffic that a rotary can efficiently handle is determined based on the capacity of the intersection. When the traffic demand exceeds this capacity, congestion and delays can occur, leading to decreased efficiency and potential safety hazards.
Option 'A', which states that a rotary can handle 500 vehicles per hour, is too low to efficiently handle the traffic demand in most cases. Similarly, option 'C', which suggests a capacity of 5000 vehicles per hour, is too high and could lead to congestion and increased risk of accidents.
Option 'D', which suggests a capacity of 0 vehicles per hour, is incorrect as it implies that the rotary is non-functional and cannot handle any traffic. However, a properly designed and operated rotary is expected to accommodate traffic and improve intersection efficiency.
Therefore, option 'B', which states that a rotary can efficiently handle 3000 vehicles per hour entering from all legs of the intersection, aligns with the guidelines provided by the IRC and represents a reasonable and practical capacity for a rotary intersection.