Definition of "interurban"
interurban
adjective
not comparable
noun
plural interurbans
(rail transport, US) An electric railway carrying mainly passengers between two or more urban centres.
Quotations
On the steam roads, the engine, representing with its tender an enormous weight, is required to generate enough power not only for its own propulsion, but drag after it a train of cars. Several important consequences result from this difference between steam and electric traction. First, on the electric railway single cars may be used, taking their power as required under such headway as may be required to accommodate the traffic, while the steam engine must for the sake of economy be loaded somewhere near its capacity, so that the service is necessarily less frequent than that offered by the interurban.
1909, Thomas Conway (Jr.), The Traffic Problems of Interurban Electric Railroads, page 7
... but debits and credits arising from the operation of such street electric passenger railways, including railways commonly called interurbans, as are at the time of the agreement not under Federal control, shall be excluded.
, Southern Pacific Company, Corporation Annual Reports to Shareholders, page 30