Read this today:
BBC News - Testing a London 'Cycle Superhighway'
This sems to me a bit like a joke: there's still the same space sharing with cars issues as a normal cycle path, why did they bother?
And I bet they also stop where they're most needed, i.e. narrow roads, junctions and bus stops.
Anything short than a segregated bicycle route can hardly be considered as a improvement on the patchy terracota "cycle lanes" that typically stop where one needs them most: at junctions, bus stops, etc....
The current state of cycling infrastructures is simply pathetic when compares to most European countries and an those blue lanes are nothing short of expensive joke.
The government taxes very heavily motorists, mostly because they can and justifying itself on environmental values. Apart from the fact it's both wrong (CO2 is not a pollutant) and unfair (housing and industry are biggest polluters), the most frustrating is that little of this hoard goes back towards improving the infrastrucure and public transport.