How many miles of public roads are there in Great Britain?
Answers:
Let's see- 399 cones per mile and 700 million cones, that's er- wait, rhe sun's gone in on my solar powered calculator.
lots
To many!!
3.5 million kilometres or there abouts
all of them
Motorways only - 2099 Miles
Click this link to see database on all M roads in the UK:
http://www.cbrd.co.uk/motorway/navigateb.
Example below...
M25
Officially named the London Orbital, nicknamed the 'Road to Hell', and frequently derided as nothing more than a very big car park, this is London's outermost beltway, the world's biggest ring road - the M25.
Despite all this, the M25 isn't even a full circle. The Dartford Crossing (comprising the Dartford Tunnels and the Queen Elizabeth II Bridge) over the Thames in the east and its approach roads are designated A282, because the first Tunnel was built in the 1960s as a local connection. A second tunnel was added, and because it was a dual carriageway, 1980s planners considered it eminently suitable for routing the M25 through. It remained A282 nonetheless, and has since been adorned with a bridge to double its capacity.
It's not just the biggest ring road in the world, it has other accolades. This was the most expensive motorway Britain ever built, coming in at a total of £909m in eleven years, or roughly £7.5m per mile. Since then it hasn't exactly been cheap to maintain, with a cable stayed bridge to double up capacity at Dartford, countless widening schemes and now expensive things like Variable Speed Limits in desperate attempts to keep traffic moving.
The eternal question is: why is a simple ring road, a 360-degree bypass of a city, so badly congested? There appear to be three principal reasons. First, as a sweetener to locals along the route, junctions were dropped in all over the place. They allowed the road to be built, but allowed lots of local traffic onto what was intended as a long-distance route. It also means the road is now used by many commuters. Second, it was meant to be the outermost of three or four ring roads for London; not counting the inner ring road and South Circular, which are signed routes along city streets, it is currently the outermost of one and a half ring roads. Thirdly, and partly for the reasons above, the demand for this road was so grossly underestimated that when it was finally completed in 1986, it was already out of date. Demand outstripped capacity within a few short years and ever since then it's been a long and expensive battle to make things move once more.
Factfile
Start Dartford (A282)
Finish Thurrock (A282)
Passes Swanley, Sevenoaks, Reigate, Staines, Heathrow Airport, Watford, St Albans
Length 118 miles
Terminates M20, M26, A1(M)
Spurs None
Meets M1, M3, M4, M11, M23, M40
M11
A 1970s motorway built to whiz traffic from London to the newly developed Stansted airport. An additional two-lane section was built north of there to get traffic to Cambridge, then onto what is now the A14 and then onto the A1.
Short-sighted planning gave the Stansted junction, where the M11 loses a lane, a normal roundabout interchange. Free-flowing links into the airport's road system have now been built at great expense and things are now flowing smoothly at long last.
Three junctions are missing from the start of the motorway - this would have been the link further into London to reach Ringway 1, a proposed inner ring motorway for London. This link was built to different designs in the 1990s as the A12 between the A406 and Hackney Wick.
The best thing that could happen to the M11 now would be an extension to meet the A1, to relieve the choked A14 section between Cambridge and Huntingdon, and close a gap in the motorway network.
Factfile
Start London (A406)
Finish Cambridge (A14)
Passes Harlow, Stansted Airport
Length 51 miles
Terminates None
Spurs None
Meets M25
http://www.cbrd.co.uk/motorway/m25/..
http://www.cbrd.co.uk/motorway/navigateb.
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