In Amsterdam for example, by 2005 about 40% of journeys were by bicycle and transport planners at the "Dienst Infrastructuur Verkeer en Vervoer" (Directorate Infrastructure Traffic and Transport) have adopted a bicycle policy that blends many different bike-friendly street designs such as segregated bicycle lanes, on-road bicycle lanes, and "fietsstraat" streets, among others. The general concept is that cyclists can integrate relatively safely with vehicular traffic that is travelling at, or below, but that segregated bike lanes should be installed along roads with a higher speed limit. With these, and many other, bike-friendly policies in place, Amsterdam has the highest rate of cycling of any capital city in the world. Cyclestreets are also on the rise in other cities within the country, including Utrecht.