tractive effort
Noun
Meaning
tractive effort (plural tractive efforts)
(engineering, rail transport) the tractive force that can be generated by a prime mover to pull a load; cardinal examples are a locomotive pulling a train, a road tractor pulling a trailer, or a farm tractor pulling a plow.
Synonyms
Examples
Approximately 95% of the tractive effort in the San Francisco system is expended in simply moving the four cables at 9.5 miles per hour.
Passenger locomotives develop less starting tractive effort but are able to operate at the high speeds demanded by passenger schedules.
Therefore, the combination of starting tractive effort and maximum speed is greatly influenced by the diameter of the drivers.
They do not develop as much starting tractive effort as a freight unit but are able to haul heavier trains than a passenger engine.