diff --git a/gtfs/spec/en/reference.md b/gtfs/spec/en/reference.md
index 437c7b1e3..fc4a8ef87 100644
--- a/gtfs/spec/en/reference.md
+++ b/gtfs/spec/en/reference.md
@@ -166,7 +166,7 @@ File: **Required**
| `route_short_name` | Text | **Conditionally Required** | Short name of a route. Often a short, abstract identifier (e.g., "32", "100X", "Green") that riders use to identify a route. Both `route_short_name` and `route_long_name` may be defined.
Conditionally Required:
- **Required** if `routes.route_long_name` is empty.
- Optional otherwise. |
| `route_long_name` | Text | **Conditionally Required** | Full name of a route. This name is generally more descriptive than the `route_short_name` and often includes the route's destination or stop. Both `route_short_name` and `route_long_name` may be defined.
Conditionally Required:
- **Required** if `routes.route_short_name` is empty.
- Optional otherwise. |
| `route_desc` | Text | Optional | Description of a route that provides useful, quality information. Do not simply duplicate the name of the route.
_Example: "A" trains operate between Inwood-207 St, Manhattan and Far Rockaway-Mott Avenue, Queens at all times. Also from about 6AM until about midnight, additional "A" trains operate between Inwood-207 St and Lefferts Boulevard (trains typically alternate between Lefferts Blvd and Far Rockaway)._ |
-| `route_type` | Enum | **Required** | Indicates the type of transportation used on a route. Valid options are:
`0` - Tram, Streetcar, Light rail. Any light rail or street level system within a metropolitan area.
`1` - Subway, Metro. Any underground rail system within a metropolitan area.
`2` - Rail. Used for intercity or long-distance travel.
`3` - Bus. Used for short- and long-distance bus routes.
`4` - Ferry. Used for short- and long-distance boat service.
`5` - Cable tram. Used for street-level rail cars where the cable runs beneath the vehicle (e.g., cable car in San Francisco).
`6` - Aerial lift, suspended cable car (e.g., gondola lift, aerial tramway). Cable transport where cabins, cars, gondolas or open chairs are suspended by means of one or more cables.
`7` - Funicular. Any rail system designed for steep inclines.
`11` - Trolleybus. Electric buses that draw power from overhead wires using poles.
`12` - Monorail. Railway in which the track consists of a single rail or a beam. |
+| `route_type` | Enum | **Required** | Indicates the type of transportation used on a route. Valid options are:
`0` - Tram, Streetcar, Light rail. Any light rail or street level system within a metropolitan area.
`1` - Subway, Metro. Any underground rail system within a metropolitan area.
`2` - Rail. Used for intercity or long-distance travel.
`3` - Bus. Used for short- and long-distance bus routes.
`4` - Ferry. Used for short- and long-distance boat service.
`5` - Cable tram. Used for street-level rail cars where the cable runs beneath the vehicle (e.g., cable car in San Francisco).
`6` - Aerial lift, suspended cable car (e.g., gondola lift, aerial tramway). Cable transport where cabins, cars, gondolas or open chairs are suspended by means of one or more cables.
`7` - Funicular. Any rail system designed for steep inclines.
`11` - Trolleybus. Electric buses that draw power from overhead wires using poles.
`12` - Monorail. Railway in which the track consists of a single rail or a beam.
In addition, an extension has been proposed to allow specifying several route types using a relevant subset of Hierarchical Vehicle Type (HVT) codes from the European TPEG standard.
`100` - Railway Service
`101` - High Speed Rail Service
`102` - Long Distance Trains
`103` - Inter Regional ail Service
`105` - Sleeper Rail Service
`106` - Regional Rail ervice
`107` - Tourist Railway Service
`108` - Rail Shuttle (Within Complex)
`109` - Suburban Railway
`200` - Coach Service
`201` - International Coach Service
`202` - National Coach Service
`204` - Regional Coach Service
`400` - Urban Railway Service
`401` - Metro Service
`402` - Underground Service
`403` - Urban Railway Service
`405` - Monorail
`700` - Bus Service
`701` - Regional Bus Service
`702` - Express Bus Service
`704` - Local Bus Service
`715` - Demand and Response Bus Service
`800` - Trolleybus Service
`900` - Tram Service
`901` - City Tram Service
`902` - Local Tram Service
`903` - Regional Tram Service
`904` - Sightseeing Tram ervice
`905` - Shuttle Tram Service
`906` - All Tram Services
`1000` - Water Transport Service
`1200` - Ferry Service
`1300` - Aerial Lift Service
`1400` - Funicular Service
`1501` - Communal Taxi Service
`1700` - Miscellaneous Service
`1702` - Horse-drawn Carriage|
| `route_url` | URL | Optional | URL of a web page about the particular route. Should be different from the `agency.agency_url` value. |
| `route_color` | Color | Optional | Route color designation that matches public facing material. Defaults to white (`FFFFFF`) when omitted or left empty. The color difference between `route_color` and `route_text_color` should provide sufficient contrast when viewed on a black and white screen. |
| `route_text_color` | Color | Optional | Legible color to use for text drawn against a background of `route_color`. Defaults to black (`000000`) when omitted or left empty. The color difference between `route_color` and `route_text_color` should provide sufficient contrast when viewed on a black and white screen. |