The M25 or London Orbital Motorway is a major road encircling most of Greater London. The 117-mile (188-kilometre) motorway is one of the most important roads in the UK and one of the busiest.
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Gravelly Hill Interchange is the UK's busiest motorway junction and is one of the country's most iconic concrete structures which turned 50 last year. The winding labyrinth of roads along the M6 is also one of the biggest motorway interchanges in Europe and more than 200,000 vehicles travel on it daily.
Hardknott Pass is considered to be one of the most challenging in the UK. It has earned this consideration due to its series of hairpin bends and the high risk of ice on the road. It is a steep, twisting, single-track road that cuts right through the heart of the Lake District between the Duddon Valley and Eskdale.
Magic Roundabout, SwindonThe Magic Roundabout is often listed as one of the most intimidating junctions in the UK. It's best shown in map form so you can see the complexity of its one-way systems feeding five roundabouts.
Somewhere to the east of Glasgow lies the A8(M) - but look carefully, because it's not easy to find. The A8(M) is the UK's shortest motorway, running for just over 280 metres (308 yards). It forms a link between two roundabouts at Baillieston Interchange, better known as the junction between the M8 and M73.
At 231 miles (370km), the M6 is the UK's longest motorway. It runs from Catthorpe (junction 19 on the M1) to the Scottish Border. The M62 is the highest motorway in the UK. It reaches 1,220ft (372m) near the Pennine Way footbridge.
London, for the second year in a row, has been the rated the most congested city in the world, according to traffic experts at Inrix. In the UK overall, traffic delays increased in 79 out of 110 urban areas year-over-year.
Southend-on-Sea, Derbyshire and Liverpool are judged to have the worst roads in the country. Meanwhile, Sheffield, Wirral and Leeds have the best road surfaces in Britain.
Norman Cross to Bourne takes 33 minutes, Bourne to Lincoln takes 46 minutes, and Lincoln to the Humber Bridge takes 54 minutes. A section of the A15 (between Scampton and the M180) provides the longest stretch of straight road in the UK.
By spring, the road surface can have holes (called 'potholes') where the surface has broken. Another cause is heavy lorries driving on roads not built for such large vehicles. They gradually damage the surface and can even make the road lumpy. Potholes aren't just bad for your car, they can also be dangerous.
United Kingdom Motorways and Their SafetyMotorways are some of the safest roads in the UK, with strict speed limits and lane discipline helping to reduce accidents. However, accidents can still happen, particularly during periods of heavy traffic or adverse weather conditions.