Length of four-lane highways or above doubled in 10 years
The total length of 4-lane or above NH stretches has more than doubled in the past 10 years and maximum growth has been recorded between 2018 and 2021 when 9,000 km of NH was expanded to this category, official data shows. The share of NH stretches that are less than two-lane has fallen, indicating that sharper focus on building wider highways is yielding results.
As per official data, the total length of single-lane highway as on May 31 was 29,693 km, which was 21% of the entire 1.39 lakh km NH network compared to 29% in 2018. It also shows that there has been a significant increase in the length of twolane or two-and-a-half lane NHs in recent years.








