# NHAI sets uniform design norms for high-speed access-controlled highways | Today News

- Published: 2026-09-21T15:30:04.039Z
- Updated: 2026-09-21T15:30:04.039Z
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- Topics: Crime, law and justice, Science and technology
- Involves: National Highways Authority of India (NHAI), a new framework that seeks to bring consistency in DPR preparation, road geometry and safety provisions, while improving operational efficiency and reducing disruptions on high-speed corridors, a uniform design framework for high-speed access-controlled national highways, advance notification of highway exits and entries so that motorists have adequate time to anticipate and safely negotiate access and exit points, connectivity to major traffic-generating destinations (ports, airports, multimodal logistics parks, industrial areas and major tourist destinations) provided through interchanges, construction of a 1-metre-high boundary wall along the outer edge of the corridor to prevent encroachments, unauthorized entry and stray cattle from entering the highway, corridors carrying up to 15,000 vehicles will have a four-lane highway and four-lane structures, with a proposed corridor width of 60 metres, corridors with traffic between 15,000 and 25,000 vehicles will have four-lane highways and six-lane structures with a width of 70 metres, for traffic between 25,000 and 40,000 vehicles, a six-lane highway and six-lane structures within a 70-metre corridor width, guidelines for upcoming four- and six-lane access-controlled greenfield and brownfield national highways (excluding expressways), requiring interchanges and ramps at crossings with expressways, national highways, state highways and important arterial roads that generate substantial traffic, the expansion of India’s high-speed highway network and the government’s Viksit Bharat 2047 road map

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