Fietsersbond does not object to the use of semi-metalled materials on little-used recreational bicycle connections (e.g. some optional bike paths). As yet the use of semi-metalled materials on bicycle connections is quite problematic as regards durability, cycling characteristics, the various groups of users and costs. Where bike paths are concerned, there is definitely a lack of long-term experience with the new types of material and documentation is still rudimentary. It is therefore for the time being still risky to use this. Road maintenance authorities need to consult road-building engineers for information on new materials or new areas of application. The nature of the foundation and environment determine which materials and constructions are suitable. The costs (materials, foundation and maintenance) need to be estimated realistically as well. It may well be that intensively managed areas like country estates, parks and certain scenic areas are most appropriate for semi-metalled roads. For the time being it is nevertheless advisable that cyclists be provided with an acceptable bad-weather alternative with a hard surface.