Guidelines apply to new four‑lane and six‑lane high‑speed corridors, both Greenfield (new) and Brownfield (upgraded) projects.
Road width is set at 60 m for traffic up to 15,000 vehicles, and 70 m for higher traffic levels.
Safety provisions include advance notice of exits, a one‑metre‑high wall, and controlled access to prevent stray animals.
Interchanges with ramps will link the highways to expressways, state highways, ports, airports and tourist destinations.
The framework supports India's vision of a world‑class highway network under the Viksit Bharat 2047 plan.
These guidelines standardise technical specifications, safety measures and road widths based on projected traffic volumes.
They also require one‑metre‑high boundary walls and interchanges to connect with major transport hubs such as ports and airports.
The aim is to create a uniform, safe and efficient national highway network by 2047.
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