MLOC (Middle Lane Owners Club) publish these rules, and clearly some people believe them to be true!
MLOC Motorway Information Page
Introduction
Driving on the motorway can be a perrilous and frightening experience and should generally be avoided if you can reach your destination via the country’s much safer network of A and B roads. Occasionally motorway travel is unavoidable. This page provides the information you need to sucessfully negotiate the country’s most dangerous road type
Lane Discipline
Most motorways have 4 lanes, each lane has a designated purpose. Upon entering the motorway you should get into the correct lane immediately.
Picnic/breakdown Lane - This lane can be used if you need to stop for any reason, such as a car breakdown or the grandchildren needing lunch.
Lorry Lane - This lane is reserved for goods vehicles. Cars are only permitted to use it when joining or leaving the motorway and only for the purposes of getting to or from the Car lane
Car Lane - All cars and vans, including cars towing caravans must use this lane at all times
Hard Shoulder - This lane is reserved for emergency vehicles only
Motorways with odd numbers of lanes
Some heavily congested motorways are given an additional lorry lane in order to speed up deliveries to Somerfield. These are inserted between the normal lorry lane and the car lane, so remember to move across one more lane if you find yourself on such a motorway
Some motorways have one less lane than normal. In these circumstances you must occupy the rightmost lane. Since there is no lane for emergency vehicles they must share the car lane and give way to cars
Joining a motorway
All motorways have slip roads to allow motorists to queue without causing congestion on the rest of the road network. The speed limit for slip roads is 30mph and strictly enforced at all times. The following procedure should be used when joining a motorway
Drive to the end of the slip road and stop
Wait for a gap of at least 50 feet between lorries. Be aware that some car drivers illegally use the lorry lane so what appears to be a gap may actually contain a car. By law they should move out of the way once you begin to merge but often they fail to do so
Pull into the gap. The lorry behind will slow down to allow you to enter the motorway
Move into the car lane. Other cars will make room for you once you start moving
Congratulations, you have completed one of the most skilled and challenging manouvres possible on todays roads
Driving on a motorway
Driving on a motorway is relatively simple. So long as you stay in the car lane all other vehicles except Transit vans must give way to you. The speed limit is 60mph but do not worry if you are uncomfortable at this speed as it is a limit not a target. Concentrate on finding the correct exit as follows:
All exit information signs are preceded by three 100 yard warning signs. Keep an eye out for these signs and you will never miss a junction. Note that the signs are often hard to see due to the lorries undertaking you. Under no circumstances should you use the lorry lane in order to get a better view of the signage.
Signs on gantries can safely be ignored. They are for lorries only, this is why they are so high up
Leaving a motorway
Once you have counted down the three 100 yard markers and read the junction information sign, do the following
Consult your map. The junction sign will list a number of towns. Find the junction on your map that is closest to all these towns
If this is the junction you want, move immediately into the lorry lane
Remember the speed limit on slip roads is 30mph, you must slow down to this speed before entering the slip road. Lorry drivers will be expecting this and will make room for you
Move into the slip road and leave the motorway