An underground way or gallery; especially, a passage under a street, in which water mains, gas mains, telegraph wires, etc., are conducted.
An underground railroad, usually having trains powered by electricity provided by an electric line running through the underground tunnel. It is usually confined to the center portion of cities; -- called also tube, and in Britain, underground. In certain other countries (as in France or Russia) it is called the metro.
an urban railway, running short distances either underground or above, carrying passengers only.
n. 1. An walkway under a street.
electric underground railway
an underground tunnel or passage enabling pedestrians to cross a road or railway
a grade separation that carries a railway across and over a road
a LOT more complicated than just diging a tunnel
an actual underground tunnel
a passenger tunnel under a road
An electric railway, with the capacity for a heavy volume of traffic, operating completely separate from all modes of transportation in an exclusive right-of-way.
A rail transportation system that provides local rapid-transit passenger service either wholly or partially underground.
See " Rail, Heavy."
(pedestrian walkway under road) underpass
That portion of a transportation system that is contucted underneath the ground surface, regardless of its method of construction. (TRB) An underground rapid rail transit system or the tunnel through which it operates. (TRB) In local usage, sometimes used for the entire rail rapid transit system of which only a portion may be beneath the ground surface. (TRB) A pedestrian underpass. (TRB) Rail transitway below surface with a cover over the tunnel. Cut and cover, bored tunnel, underwater tubes, etc. are included. (FTA)
Advertising Advertising panels located in subway or commuter rail stations or on transit platforms. Sizes vary.
In the United Kingdom and some Commonwealth countries (such as Australia, Canada, Hong Kong, and Singapore), the term subway normally refers to a specially constructed underpass for pedestrians and/or cyclists beneath a road or railway, allowing them to reach the other side in safety.