Stairs, ramps and paths of stairs are important elements of nets for pedestrian and cycle traffic. The existing bases of the Swiss standards originate from the 60‘s-years. Aspects of planning and design are completely missing. It is therefore urgent to revise and complete the principles for the disposition and execution of stairs, ramps and paths of stairs.

The new bases are not only to be formulated for pedestrian, but also for cycle traffic, for handicapped people and for other human powered vehicles. The aspect of spatial arrangement and design are to be considered. The requirements concerning traffic security and the security in public areas have to be formulated. The bases and principles are to be corresponding with other standards.