Cycling infrastructure
Cycling infrastructure refers to all infrastructure permissible for use by cyclists , including the network of roads and streets used by motorists , except where cyclists are excluded ( e . g . , many freeways/motorways ) , along with bikeways from which motor vehicles are excluded – including bike paths , bike lanes , cycle tracks , rail trails and , where permitted , sidewalks . 
<triplet> road <subj> sidewalk <obj> has parts of the class