Motorways: General

Many other Rules apply to motorway driving, either wholly or in part: Rules 46, 57, 83 to 88, 89 to 102, 103 to 126, 130 to 134, 139, 144, 146 to 151, 160 to 161, 219, 221 to 222, 225, 226-237, 274 to 278, 280 to 287 and 288 to 290.

Rule 253

Prohibited vehicles. Motorways MUST NOT be used by pedestrians, holders of provisional motorcycle or car licences, riders of motorcycles under 50 cc, cyclists, horse riders, certain slow-moving vehicles and those carrying oversized loads (except by special permission), agricultural vehicles, and powered wheelchairs/powered mobility scooters (see Rules 36 to 46 inclusive)
Laws HA 1980 sects 16, 17 & sch 4, MT(E&W)R regs 3(d), 4 & 11, MT(E&W)(A)R, R(S)A sects 7, 8 & sch 3, RTRA sects 17(2) & (3), & MT(S)R reg 10

Rule 254

Traffic on motorways usually travels faster than on other roads, so you have less time to react. It is especially important to use your mirrors earlier and look much further ahead than you would on other roads.