(a) whether the Government is aware of the accident-prone black spots on National Highways (NHs) and if so, the details thereof particularly in Tamil Nadu;
(b) whether the Government proposes to widen the road at such stretches and if so, the details thereof;
(c) whether the protection walls at such stretches have been repaired to make them stronger and if not, the reasons therefor; and
(d) the details of funds allocated and utilised for the safe transport and installation of traffic signs and fluorescent lights in such areas to prevent accidents in future?