In our motoring careers, it is likely at some point that we will break down and have to call on the emergency breakdown services to come and rescue us. So we need to be able to give them finite information about where we are and what the problem is so that they can best help us as quickly and safely as possible.
If you break down on the motorways or the intricate network of A roads in the UK, then you will see signs that are designed to provide you with information that will help. They normally have three rows on them with information to guide the services to you. The signs are located roughly every five hundred metres. The first row will say something like M25' that gives you the motorway route you are travelling on. The second is often a letter, which indicates to the services the direction you are travelling in. This will either be an A' standing for away from London' and B' standing for back to London'. The third is a number which is indicative of the distance, in kilometres that you have travelled since the start of the motorway. These distances are accurate to within twenty metres. This is the most accurate way that they can locate you, so should you break down you should look for one of these signs if it is safe to do so.
If you are driving in the UK make sure you get Car Insurance Online to save you time and money.