As long as there is snow on the road and you hold your speed below 35 mph.
"Snow chains are for use on tires in heavy snow. Check with local laws regarding the use of snow chains before installing as they are illegal in many areas. Based on my research, I cannot find any information on Rain Chains."
i would say chains
The same pressure you use without chains.
Tyre chains are legal in the UK, but you must you must only use them on snow. It is illegal to drive on a cleared road with chains on due to the damage they cause to the surface. Chains are not very common because most UK roads are heavily gritted and cleared frequently, therefore there is little need for them.
If you need snow chains, you buy a set that fits the tire size of the vehicle.
I own a 2004 Audi Allroad with the same tire size: 245 45 R18. Found my chains at Walmart for $35, don't forget the special bungies to keep them tight on your wheel. ps Chains are not illegal in all states. I believe chains are illegal in all states of the US unless you are driving a fuel tanker but I could be wrong. Although I have never seen chains in that size before. If you want better traction I suggest buying some snow tires.
To properly install and use snow chains on your boots for added traction in icy or snowy conditions, follow these steps: Lay the snow chains flat on the ground and step into them with your boots. Pull the chains up and secure them tightly around your boots. Adjust the chains to ensure a snug fit and proper traction. Walk carefully and slowly to test the traction of the snow chains on the icy or snowy surface. Remove the snow chains when not needed to prevent damage to them and your boots. Remember to always follow the manufacturer's instructions for the specific snow chains you are using.
Tire chains are sold 2 per set . use on drive axles only.
When the highway patrol posts signs say so or whenever there is a blizzard-like snow condition. Better safe than sorry... That is an excellent and true response also,. I had my personal training in such conditions driving in the Maine winters . Not often did I use them but did have them in case.
"The laws for snow tire chains very from state to state, country to country, province to province, county to county. Check with your local bylaw or MP for more info."
Well if you live in the tropics, they are no use whatsoever, however in places where snow falls heavily, they can be used to clear paths and roads of snow.
To effectively use snow chains for shoes in icy conditions, first ensure they are the correct size and securely fastened. Place them over the sole of your shoe, making sure they are evenly distributed. Walk carefully and deliberately to maintain traction on icy surfaces. Remove the snow chains when not needed to prevent damage to shoes or floors.