The national speed limit for motorways has not changed since 2007 and remains 70mph unless otherwise signed.
The restrictions on HGVs changed in April 2115, it used to be 50mph but is now 60mph.
The first Motorway in UK (M6) was opened in 1958.
"Seventy: Speed Limit on a Motorway" (in the UK).
Unless otherwise indicated it is 70 mph
Assuming you're referring to Europe and the UK, 100 kilometres an hour.
It depends on the average speed which, in turn, depends on what the car is capable of, the speed limit(s), road conditions, traffic, stoppages. At 20 mph, the speed limit on my road, it would take 33.5 days! On a UK motorway, staying within the legal speed limit, just over 9.5 hours.
It depends on the speed that you drive at which, in turn, depends on the speed limit, road conditios, your vehicle, traffic etc. At 20 mph (the speed limit on my street) 5 hours. On a UK motorway, 1.43 hours or just over 1 hour 25 minutes. On roads without speed limit, less than that.
At 20 mph (local speed limit), 11.85 hours (11 hours 51 mins) At 70 mph (UK motorway limit), 3.38 hours (3h 23m) At 118.5 mph 2 hours
In a 20 mph speed zone 24 minutes. On a UK motorway (speed limit 70 mph) less than 7 minutes. On some European roads less than 5 minutes.
The first motorway opened in Britain was the M6 (M=Motorway). It was known as the Preston Bypass. It was opened in 1958. When it was planned, the Preston Bypass was seen as the first piece of a large network. It was deemed a success and led to the construction of a second motorway, the M1, opened in 1959. There was no speed limit and no crash barriers and hardly any traffic -- now that's what I call motoring! The M6 is also Britain's longest motorway and Britain's busiest.
the speed limit on a duel carrage way is 345mph.
It depends on how fast you can drive, taking into account the vehicle, road conditions, traffic, speed laws etc. At 20 mph (my local speed limit) it would take 8.25 hours At 70 mph (UK motorway limit), 2.36 hours At 100 mph, 1.65 hours
On a UK motorway (limit 70 mph), it should take 24 minutes.