Birdy Back, Piggy Back, Fishy Back
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It is a combination of rail and road. The containers are placed on
railway flat-cars and transported by rail from one terminal to
another. After reaching the destination terminal, they can be placed
on trailers and transported by roads which are also called as TOFC
that is Trailer on Flat Car or COFC- Container on Flat Car.
The best known and most widely used intermodal system is the trailer
on a flatcar (TOFC). Piggyback or trailer – on flatcar is specialized
form of containerization in which rail and transport coordinate. In
piggyback, the carrier places the carrier trailer on a rail flatcar,
which moves the trailer by rail for long distances. And then motor
carrier moves the trailer for short distances for pickups and
deliveries.
Fishy Back:
It is a combination of road and water transport. Fishy back/ train
ship/ containership are examples of the oldest mode of the intermodal
transport. They utilize waterways, which are one of the least
expensive methods for line- haul movement. The fishy back, train ship
and container ship concepts load a truck trailer, railcar, or
container on to ship for the line- haul move. Such services are
provided in coastal waters between Atlantic and Gulf ports, from the
great lakes to coastal points and along inland navigable waterways.
Birdy Back:
It is a combination of road and airways and is generally used in
International shipments. Local cartage is a vital part of every air
movement because air fright must eventually transport from the airport
to the final delivery destination. Air- truck movements usually
provide service and flexibility comparable to straight motor freight.