(a) the number of road accidents reported from highways due to fog during each of the last three years, year-wise;
(b) whether Meteorology Department has proposed for the deployment of the advance fog warning system on road used at airports to make winter travel safer;
(c) if so, the details in this regard along with the action taken thereon including examining their financial viabilities; and
(d) the time by which it is likely to be finalized/installed?