This document provides data on road engineering measures and black spot identification/rectification across various states in India for National Highways (NH) and State Roads between 2017-2020. Key details include:
- The number of black spots identified and rectified annually on NH and state roads for each state.
- Whether states have formed a Black Spot Committee and submitted reports on identification.
- If protocols for identification and annual calendars for rectification have been approved by state road authorities.
- Engineering measures taken on NH and state roads like widening, strengthening, rehabilitation for some states in given years.