Posted: 09/12/2012 at 21:42
As far as I am aware, the law has never been tested as to liability if you clear a public highway and somebody is injured by slipping on ice formed on a cleared surface. Any injured party would probably have to show you acted either maliciously or carelessly and that might be difficult to prove especially if you can show you were genuinely acting in good faith. Not withstanding that, over zealous and mean spirited local authorities may wish to throw their 'Elf and Safety weight around and claim your actions are causing a public nuisance, and forbid you from clearing public highway. However, if they did, then you have a right to remind them of their duty to public highways clear of all hazards!
It's different on your own land - visitors are protected by Occupiers Liability Act, so landowners must make reasonable effort to ensure the safety of visitors, meaning if you know somebody is going to walk on your land you must take reasonable action to clear it and then grit it, if necessary.