Guidelines on the integration of cycle highways in spatial planning 
This chapter describes a model planning process for cycle highways using the FrankfurtRhineMain region as an example.
Note: Depending on the country and region, different framework conditions and requirements exist, so that the locally effective approach may have to be adapted.
There are two different starting points for the planning and implementation of cycle highways, which initiate cycle highways projects.
A. There is no potential analysis available yet and the project initiation is usually based on a mandate from the government to the administration to examine and, if necessary, carry out a feasibility study for a cycle highway between destination A and B. The development of a cycle highway can also begin as a project idea from citizens who are enthusiastic about cycling. In other cases the impulse comes from companies, associations or local authorities who see the need for a cylce highway. Ultimately, it is the administration that will start the cycle highway project.
Exchange platforms such as regional cycle forums are useful for promoting cylce highways. There cycle representatives can exchange views on new topics, identify commonalities and develop project ideas. These developments are usually parallel and mutually supportive.
B. An analysis for potential cycle highway corridors in the region is available. In the case described here, a "potential assessment of corridors for cycle highway connections" was commissioned by the State of Hesse, which applies to the whole of the State of Hesse and thus to the FrankfurtRhineMain region. The identifcation of these corridors was carried out on the basis of previously defined criteria. On the basis of such an analysis, the feasibility study can be started directly.
The application of uniform criteria in a feasibility study such as population density, employees subject to social insurance contributions, education locations or commuter relationships, but also technical standards such as width, surface quality and lighting have several advantages: Cycle highway projects become comparable and evaluable in their process and they can be prioritized by uniform standards and criteria. experience has shown that they can then be carried out more quickly. After their implementation they form a clear, recognizable picture in the network hierarchy, and - perhaps the most important point - they are eligible for funding if these standards and criteria are adhered to.
The state of Hesse has set up a network hierarchy for bicycle routes. Cycle highways are listed in the Hessian main cycle network, as they are assigned a high priority for cycle and overall traffic. The explicit classification of cycle highway [corridors] in the network hierarchy is evidence of political will for the development of this new mobility concept.
