 In other areas buses generally took amended routes, avoiding side roads or rural lanes and using only main roads.In England and Wales both Severn crossings were closed on 6 February because ice began falling from overhead gantries, affecting both the M4 and M48 motorways across the Severn Estuary; traffic was diverted into Gloucestershire and onto the M50.This was the first closure because of a weather-related incident of the second Severn crossing since the structure opened in 1996.