Template:Infobox tunnel/doc

Coordinates
Use coord with display=inline,title. Give coordinates for the mid-point.

General fields

 * name - Name of tunnel
 * image - Image file name
 * image_size - Sets the image size, defaults to 250px. Do not include the "px".
 * caption  - Caption for image
 * location - Location of tunnel
 * os_grid_ref - OS Grid Ref (UK only)
 * coordinates  - Longitude and latitude
 * status - If abandoned, heritage or under construction
 * start - Start location
 * end  - End location
 * open - Date opened
 * closed - Date closed
 * rebuilt - Date rebuilt
 * owner - Owner of the tunnel
 * operator - Operator of the rolling stock or roadway
 * engineer - Design Engineer
 * construction - dates tunnel was constructed
 * length - Length of tunnel
 * traffic - Type of traffic in tunnel (e.g. pedestrian, automotive, train etc)
 * character - Type of operation (e.g. passenger, freight, rapid transit, limited access etc.)
 * speed - Maximum permitted speed
 * hielevation  - Highest elevation of tunnel
 * lowelevation - Lowest elevation of tunnel
 * height - Clearance inside the tunnel
 * width - Width of tunnel
 * grade - Grade of climb/decent

Railway fields

 * line - Railway line
 * system - Railway system, either railway company, urban rail system or national railway system
 * stations - Number of stations
 * linelength - Length of the railway line through the tunnel
 * tracklength  - Total length of track through the tunnel, use only if different from linelength
 * notrack  - Number of tracks, usually Single or Double
 * gauge - Track gauge, use templates
 * el - Electrified (voltage if electrified)

Roadway fields

 * route - What highway route the tunnel carries
 * toll - Toll amount
 * vpd - Vehicles per day
 * lanes - Amount of lanes in tunnel

Waterway fields

 * waterway - Canal or River name
 * depth - Depth of water in tunnel
 * passable  - Are boats able to pass in Tunnel (Yes/No)
 * towpath - Is there a towpath in tunnel (Yes/No)