References: http://wiki.openstreetmap.org/wiki/Access http://wiki.openstreetmap.org/wiki/OSM_tags_for_routing/Access-Restrictions http://wiki.openstreetmap.org/wiki/Conditional_restrictions

Supported vehicles: foot (foot=*) bicycle (bicycle=*) car (motor_vehicle=*)

Access must be separatly evaluated for each vehicle type and for both directions.

Speed restrictions may also depend on vehicle type.

Tag to evaluate: access(:backward/foward)=true => foot, bicycle, car (access:)foot(:backward/forward) => foot (access:)bicylce(:backward/forward) => bicycle (access:)motor_vehicle(:backward/forward) => car (access:)motorcar(:backward/forward) => car oneway => bicycle, car