diff --git a/amarillo/plugins/enhancer/services/gtfs_export.py b/amarillo/plugins/enhancer/services/gtfs_export.py
index 0a3f83b..1abd5c0 100644
--- a/amarillo/plugins/enhancer/services/gtfs_export.py
+++ b/amarillo/plugins/enhancer/services/gtfs_export.py
@@ -24,6 +24,7 @@ class GtfsExport:
 
     stored_stops = {}
     
+    # TODO: add lists self.drivers and self.additional_ridesharing_infos 
     def __init__(self, agencies, feed_info, ridestore, stopstore, bbox = None):
         self.stops = {}
         self.routes = []
@@ -53,6 +54,7 @@ class GtfsExport:
         self._write_csvfile(gtfsfolder, 'stops.txt', self.stops.values())
         self._write_csvfile(gtfsfolder, 'stop_times.txt', self.stop_times)
         self._write_csvfile(gtfsfolder, 'shapes.txt', self.shapes)
+        # TODO: write driver.txt and additional_ridesharing_info.txt
         self._zip_files(gtfszip_filename, gtfsfolder)
 
     def _zip_files(self, gtfszip_filename, gtfsfolder):
@@ -79,6 +81,7 @@ class GtfsExport:
         for group in groups:
             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):
                 self._convert_trip(trip)