NHAI has introduced new guidelines for upcoming access-controlled high-speed National Highways to standardise design, improve road safety and enable smoother traffic movement. The framework covers four- and six-lane Greenfield and Brownfield corridors, with lane configuration and road width linked to traffic volumes. It also includes provisions for safer exits and entries, interchanges connecting key destinations, and one-metre-high boundary walls to prevent unauthorised access and stray cattle from entering high-speed corridors.