Open tyrasd opened 7 years ago
see https://wiki.openstreetmap.org/wiki/Overpass_API/Overpass_QL#Conditional_query_filter_.28if:.29
A few topics come to mind:
(if: (is_number(t[maxspeed]) && t[maxspeed] > 30))
see https://wiki.openstreetmap.org/wiki/Overpass_API/Overpass_QL#Conditional_query_filter_.28if:.29