NHAI to require boundary walls on new access-controlled high-speed highways

The National Highways Authority of India has issued guidelines requiring boundary walls on certain upcoming high-speed national highways, The Hindu reported. The guidelines will apply to four- to six-lane greenfield and brownfield highways that are both high-speed and access-controlled. The stated purpose is to prevent cattle from entering the roads.

Greenfield projects are new highway developments, while brownfield projects involve existing transport corridors, but the available source material does not provide further details about the projects covered by the measure. The report does not state the required height or design of the boundary walls, the timetable for construction or the estimated cost. It also does not identify the number of highways affected.

The guidelines represent a requirement for future projects within the stated categories. No information was provided about whether similar barriers will be added to existing highways outside those projects.