drop table if exists route_direction_stops;
drop table if exists squares_by_transit_route;
drop table if exists trips;
drop table if exists stop_times;
drop table if exists stops;
drop table if exists stop_link_shapes;
drop table if exists stop_links;
drop table if exists shapes;
drop table if exists routes;
drop table if exists calendar_dates;
drop table if exists calendars;
drop table if exists calendar;
drop table if exists agencies;
drop table if exists table_periods;
