I don’t see any problem in cycling in this weather in rush hour and neither have I had any problems this week on the roads. The Winnaway track from Harwell has been dicey with compacted ice and snow but the roads are O.K.. Even last Friday, in the snow, it seemed that car drivers were having more problems on the roads than cyclists, my ride home was OK other than diverting via the Rowstock roundabout. If you have the right clothing, cycling in this weather is better (IMHO) than driving or catching a bus. There are no windscreens to scrape or waiting for engines to warm up or waiting in the cold for busses, that are late in this weather. On a bike you pedal and start generating heat straight away.