diff --git a/amarillo/plugins/enhancer/services/gtfs_export.py b/amarillo/plugins/enhancer/services/gtfs_export.py
index 9fd6d64..3f3a277 100644
--- a/amarillo/plugins/enhancer/services/gtfs_export.py
+++ b/amarillo/plugins/enhancer/services/gtfs_export.py
@@ -85,7 +85,8 @@ class GtfsExport:
         cloned_trips = dict(ridestore.trips)
         groups, cloned_trips = self.group_trips_into_routes(cloned_trips)
         for group in groups:
-            self.convert_route(group)
+            if self.bbox is None or any(trip.intersects(self.bbox) for trip in group.values()):
+                self.convert_route(group)
         for url, trip in cloned_trips.items():
             # TODO: convert ridesharing info and driver data
             if self.bbox is None or trip.intersects(self.bbox):