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Table 4: Modal Category Definitions

Table 4: Modal Category Definitions

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Mode Definition Comments
Ferry
transit
Scheduled ferry service
running between points within a city or the same metropolitan area.
 
Ferry
intercity
Scheduled ferry service
running between points that are not within the same metropolitan area, or are
not located in any metropolitan area.
 
Bus
transit
Bus service operated on a
route within a city or single metropolitan area.
Most often operated by a
transit agency, a private company operating under contract to a transit
agency or authority, or in some cases service is operated by a private
company.
Bus
intercity
Scheduled bus service
running on routes that are not completely within the same metropolitan area,
or link locations not in any metropolitan area.
In addition to
over-the-road scheduled buses, this category includes scheduled airport bus
services from cities outside of the metropolitan area served by the airport.
Bus
code share
A scheduled bus service
that is sold as a connection by a carrier of another mode as a connection to
that mode.
While this is usually a
route that would be classified as Bus Intercity, it is operated
specifically as an intermodal feeder to another mode, and as such is
highlighted with a separate category.
Bus
supplemental
A scheduled bus service
operated along an intercity rail route to provide additional frequencies for
travelers on the rail route.
While the trip on a
supplemental bus may not involve a connection to another mode, it is a
service that is operated as an additional frequency in conjunction with
another mode. As such it is highlighted with a separate category.
Rail
intercity
Scheduled rail service
operated by either Amtrak or the Alaska Railroad, running on routes that are
not confined to a single metropolitan area.
 
Rail
commuter
Scheduled rail service
operated by a commuter railroad, on the national rail network, usually within
a single metropolitan area.
 
Rail
heavy
A transit rail service such
as a subway or elevated train that operates on a dedicated right of way
within a city or metropolitan area.
 
Rail
light
A transit rail service such
as a light rail vehicle, streetcar or trolley car operating on a right of way
that includes street running and may also include running on dedicated
trackage.
 
Air
service
Served by scheduled airline
service that is open to public sale.
 
Updated: Saturday, May 20, 2017