Copenhagen Bicycle Snake

A bright-orange path snakes above a narrow harbor basin in Copenhagen, bending around modern buildings before joining the city’s waterfront cycling network. This is Cykelslangen — the Bicycle Snake — a graceful elevated bridge built entirely for people on bikes. Its visual effect is striking: a slim, curving ribbon rises above pedestrians, water and service areas, giving cyclists a smooth passage where street-level movement had once been awkward. But the design works because it is a genuinely useful link, not merely a landmark shaped like a snake.

Cykelslangen opened in June 2014 and was commissioned by the City of Copenhagen. Designed by DISSING+WEITLING, with Rambøll as engineer and MT Højgaard as contractor, the approximately 230-meter route bridges a gap between the Dybbølsbro area and Havneholmen, connecting onward to Bryggebroen. Cyclists travel through an uninterrupted, gently curving alignment near Fisketorvet and the Copenhagen Island hotel. The dedicated elevated deck separates bicycle traffic from pedestrian spaces and reduces the need for awkward detours, level changes and conflict points. The route’s orange surface makes its function legible from a distance while the slim structure preserves views and usable space below.

The skyway is an example of transport engineering tuned to human movement. Instead of maximizing automobile capacity or speed, the geometry is shaped for comfortable cycling: broad curves, a legible path, a clear line of travel and a seamless handoff to the wider route network. Its designers treated the bridge as part of a public realm, not just a narrow piece of infrastructure. Slender supports and railings help the elevated path sit lightly among waterfront buildings. The changing perspectives from the bridge — water beneath, offices on either side, the harbor ahead — also create an enjoyable experience that may encourage people to choose the bicycle.

The project's success has been discussed as a practical measure of demand for better bicycle connections. The Danish Architecture Center reports that on a single day in 2015, 20,700 cyclists used the bridge, compared with an earlier forecast of 12,500 daily riders. These figures should not be interpreted as a guaranteed current daily average, but they illustrate how a missing link can suppress travel until it is made easy and attractive. Copenhagen's investment was relatively small compared with major road or rail projects, yet the bridge changed an everyday route and became an internationally recognizable piece of city design.

For the Smart City Visual Atlas, Cykelslangen shows that a 'smart' transport intervention need not include digital sensors or artificial intelligence to be transformative. Solving a real physical connection problem, separating incompatible flows, providing accessible and predictable passage, and investing in a pleasant public experience can be more important than technical complexity. The open question for other cities is not whether to imitate the orange ribbon, but whether they can identify comparable gaps in their own low-carbon mobility networks and close them with equally thoughtful design.