According to the last stats, 16% of all trips in Denmark are by bicycle, and for those under 4 km the share rises to 24%. 44% of all households don’t have a car. With many good conditions for cycling and a population used to it, Denmark is anyway subject to a certain rise in car ownership and use, and cycling on a national level decreased from 1990 to 2008. But even so, bike use has increased in Copenhaguen.
Since 1993 there are 11 national cycle routes, with a total length of 4.233 km. As they usually follow such elements as the coast, with much less stringent layout requirements than car roads, and they are mainly tourism and leisure oriented, they can have great lengths. The initiative’s interest must be weighted with more day to day projects, as Copenhaguen’s Cycle Superhighways, a commuter-oriented project that is to remind to anyone with a certain urban planning culture the “finger plans” so recurrent since the postwar years in this nice city.
The standard bike lane width is 2,2 m, which have been extended to 2,5-2,8 m in Copenhaguen.
A good reference on Denmark: http://www.cycling-embassy.dk/2012/05/10/cycle-concepts2012/