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As per IRC Maximum width of vehicle should be
44 m
m
m
58 m
44 m
According to the Indian Roads Congress (IRC) standards, the maximum width of a road vehicle is restricted to 2.44 meters (8 feet). This limitation ensures that vehicles can safely pass each other within the standard width of traffic lanes on Indian roads.
According to the Indian Roads Congress (IRC) standards, the maximum width of a road vehicle is restricted to 2.44 meters (8 feet). This limitation ensures that vehicles can safely pass each other within the standard width of traffic lanes on Indian roads.
WtotalтАЛ=WvehicleтАЛ+CsideтАЛ тАФ where WtotalтАЛ is lane width and CsideтАЛ is lateral clearance.
Vehicle width restrictions are implemented to maintain lane discipline and provide adequate lateral clearance between vehicles moving in opposite or same directions. If vehicles exceed this dimension, they pose a safety risk for narrow roads and bridge structures, potentially leading to congestion or accidents. The standard lane width of 3.5m - 3.75m is designed considering this maximum vehicle width plus necessary side clearances.
The 2.44 m limit is a critical geometric design parameter for Indian highways.
It directly influences the design of bridge widths, tunnel clearances, and lane widths.
IRC code serves as the primary technical guideline for road geometry in India.
Standardized vehicle sizes reduce congestion.
Improves road safety by ensuring sufficient lateral space between passing vehicles.
Strict limits can pose challenges for oversized cargo transport (ODC).
Requires specialized permits for heavy machinery exceeding standard dimensions.
Highway geometry design
Bridge and Underpass vertical and horizontal clearance planning
Traffic management and regulation
The 2.44m (8 ft) specification is a long-standing standard to maintain geometric consistency.
Exceeding this width requires special permission and is categorized as Over-Dimensional Cargo (ODC).
Option B (2m) is too narrow for standard heavy commercial vehicles, and Option C (3.8m) is excessively large for general traffic.
A is correct тАФ The maximum permitted width of a road vehicle as per IRC guidelines is 2.44 meters.
Remember that IRC usually suggests 3.5m lane width; subtracting the 2.44m max vehicle width leaves roughly 1.06m for total lateral clearance (approx 0.53m per side), which is critical for safe overtaking.
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