stops table structure#
The stops table holds information on the stops where vehicles pick up or drop off riders. This table information comes from the GTFS file stops.txt. You can find more information about the stops table here.
stop_id is an unique identifier for a stop
stop idenfifies a stop, statio, or station entrance
agency_id identifies the agency fot the specified route
link identifies the link_id in the links table that corresponds to the pattern matching
dir indicates the direction of travel for a trip
name identifies the name of a stop
parent_station defines hierarchy between different locations defined in stops.txt.
description provides useful description of the stop location
street identifies the address of a stop
zone_id identifies the TAZ for a stop
transit_fare_zone identifies the transit fare zone for a stop
route_type indicates the type of transporation used on a route
Field |
Type |
NULL allowed |
Default Value |
---|---|---|---|
stop_id* |
TEXT |
YES |
|
stop |
TEXT |
NO |
|
agency_id |
INTEGER |
NO |
|
link |
INTEGER |
YES |
|
dir |
INTEGER |
YES |
|
name |
TEXT |
YES |
|
parent_station |
TEXT |
YES |
|
description |
TEXT |
YES |
|
street |
TEXT |
YES |
|
zone_id |
INTEGER |
YES |
|
transit_fare_zone |
TEXT |
YES |
|
route_type |
INTEGER |
NO |
-1 |
geometry |
POINT |
NO |
‘’ |
(* - Primary key)
The SQL statement for table and index creation is below.
CREATE TABLE IF NOT EXISTS stops (
stop_id TEXT PRIMARY KEY,
stop TEXT NOT NULL ,
agency_id INTEGER NOT NULL,
link INTEGER,
dir INTEGER,
name TEXT,
parent_station TEXT,
description TEXT,
street TEXT,
zone_id INTEGER,
transit_fare_zone TEXT,
route_type INTEGER NOT NULL DEFAULT -1,
FOREIGN KEY(agency_id) REFERENCES agencies(agency_id)
);
create INDEX IF NOT EXISTS stops_stop_id ON stops (stop_id);
select AddGeometryColumn( 'stops', 'geometry', 4326, 'POINT', 'XY', 1);
select CreateSpatialIndex( 'stops' , 'geometry' );