Editing Dual Contracts (section)

===Planned effects===
It was expected that, within five years of completion:

<blockquote>When completed, the rapid transit facilities of the City will have been more than trebled. During the year ended June 30, 1911, shortly after which the construction of the new system was begun, the existing rapid transit lines carried 798,281,850 passengers. The new Dual System will have a capacity of upwards of [3 billion], although it is not expected that such capacity will be demanded immediately upon the completion of the system.

The combined trackage of the existing lines (including 7.1 miles of the Hudson and Manhattan Railroad) amounts to 303 miles of single track. To this will be added by the new lines of the Dual System 334 miles of single track, making a new system with 637 miles of single track. What this will mean to the City may be appreciated by considering how the existing lines will be amplified by the new additions and extensions. The Hudson and Manhattan road, however, is not to be a part of the Dual System.<ref name="nycsubway dual"/></blockquote>

This system expansion was expected to be as big as, if not bigger, than the proposed [[IND Second System|Second System expansion]] put forth by the [[Independent Subway System]] in 1929 and 1939.