0 votes 0 votes As per the Indian Roads Congress guidelines $\text{(IRC 86: 2018),}$ extra widening depends on which of the following parameters? Horizontal curve radius Superelevation Number of lanes Longitudinal gradient Others gatecivil-2023-set2 + – admin asked May 21, 2023 • edited Nov 17, 2023 by makhdoom ghaya admin 4.2k points answer See all 0 reply