Originally Posted by Pogo stick

The distance between London and Manchester in optical fibre kms is way more than the straight line distance. VM Core Network optical fibre does not follow motorway routes but generally goes via A roads but in places it also routes round residential areas. Thus the 'fibre distance' between cities bears no relationship to straight line or fastest driven route distance. If you look at the route on a map it's a bit like having a really crap sat nav!