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Government Schemes 22 September 2026 · Event date: 21 September 2026
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NHAI Introduces New Guidelines for Design and Development of Access-Controlled High-Speed National Highways

The National Highways Authority of India (NHAI) has released comprehensive guidelines for planning and designing High-Speed Access-Controlled National Highways, excluding Expressways. These guidelines aim to bring uniformity in Detailed Project Reports, improve road safety, and support the Viksit Bharat 2047 roadmap. They apply to upcoming 4/6 lane Greenfield and Brownfield corridors.

Why It Matters

The source discusses infrastructure policy and highway guidelines by NHAI under the Ministry of Road Transport & Highways, which can be relevant for government scheme and national infrastructure questions in competitive exams.

UPSCSSCRailway / RRBState PSC

In Simple Words

NHAI has introduced new guidelines for planning and designing High-Speed Access-Controlled National Highways, excluding Expressways. These rules aim to bring uniformity to Detailed Project Reports, strengthen road safety, and boost operational efficiency across upcoming 4/6 lane Greenfield and Brownfield corridors.

The guidelines support the goal of developing 50,000 km of access-controlled corridors under Viksit Bharat 2047. They standardize lane configurations based on traffic flow, mandate interchanges at major crossings, and require a 1-metre-high boundary wall to prevent unauthorized access and stray cattle.

Key Points

  • NHAI released comprehensive guidelines for High-Speed Access-Controlled National Highways other than Expressways.
  • Guidelines align with the vision of Viksit Bharat 2047 and a roadmap for 50,000 km of access-controlled corridors.
  • Guidelines apply to all upcoming 4/6 lane Greenfield and Brownfield High-speed access controlled National Highways.
  • Traffic up to 15,000 vehicles with 4-lane highway 4-lane structures requires a 60-metre width.
  • Traffic between 15,000 and 25,000 vehicles with 4-lane highway 6-lane structures requires a 70-metre width.
  • Traffic between 25,000 and 40,000 vehicles requires a 70-metre width for 6-lane highway 6-lane structures.
  • A 1-metre-high boundary wall must be constructed along the outer edge to prevent encroachments and stray cattle.
  • Interchanges with ramps will be provided at crossings with Expressways, National Highways, State Highways, and arterial roads.

Exam Angle

Issuing authority
NHAI
Target corridor length goal
50,000 km
Vision alignment
Viksit Bharat 2047
Boundary wall height
1-metre-high

A. 50,000 km

Source: Press Information Bureau

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