The council have put out a pdf document which you can download from here.
Basically it sums up what will and won’t be cleared, what they will try to do, and what we can do to help ourselves, and any neighbours who might need help.

Roads that will be gritted are Primary Roads: Major routes, main bus routes and roads that connect to hospitals. More info from www.eastsussex.gov.uk/roadsandtransport/roads/maintenance/saltingandgritting

Grit Bins will be filled and a few ‘hippo bags’ of grit will be put into primary route areas. Info from www.eastsussex.gov.uk/roadsandtransport/roadsmaintenance/saltingandgritting/gritbins

The main Hastings and St Leonards shopping areas will be cleared, as possible, by council contractors and staff.

Clearing areas yourself, The Snow Code: Don’t be put off clearing paths because you’re afraid someone will get injured.
Remember, people walking on snow and ice have responsibility to be careful themselves.

“…. The only person who is at risk of being sued is a person who clears the snow so badly that things are worse than before and that common sense
would indicate that this is so; an example given is that of a person who clears a path with water in freezing temperatures and pays no attention to the fact that the water left behind freezes and creates slippery ice. ..”Ministry of Justice, March 2010

Follow the advice below to make sure you clear the pathway safely and effectively.

Clear the snow or ice early in the day It’s easier to move fresh, loose snow rather than hard snow that has packed together from people walking on it. So if possible, start removing the snow and ice in the morning. If you remove the top layer of snow in the morning, any sunshine during the day will help melt any ice beneath. You can then cover the path with salt before nightfall to stop it refreezing overnight.
Use salt or sand – not water If you use water to melt the snow, it may refreeze and turn to black ice. Black ice increases the risk of injuries as it is invisible and very slippery. You can prevent black ice by spreading some salt on the area you have cleared. You can use ordinary table or dishwasher salt – a tablespoon for each square metre you clear should work. Don’t use the salt found in salting bins -this will be needed to keep the roads clear. Be careful not to spread salt on plants or grass as it may cause them damage. If you don’t have enough salt, you can also use sand or ash. These won’t stop the path icing over as well as salt, but will provide good grip under foot. It will however need to be cleared up once the weather improves.
Take care where you move the snow to When you’re shovelling snow, take care where you put it so it doesn’t block people’s paths or drains. Make sure you make a path down the middle of the area to be cleared first, so you have a clear surface to walk on. Then shovel the snow from the centre of the path to the sides.