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Maximum grade for a trolley line?
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   Maximum grade for a trolley line?
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   Author  Topic: Maximum grade for a trolley line?  (Read 231 times)
one87th
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Maximum grade for a trolley line?
 
« on: Nov 26th, 2012, 8:11pm »
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I am aware that on regular (steam/diesel) railroads a grade of 2% is considered steep, 4.7% is considered very steep (Saluda grade on the Southern) and 5.89% was the steepest mailnline grade (PRR's Madison incline) on record.
 
Can anyone tell me what is considered the maximum practical grade for a traditional trolley line, and can you site samples of where it was used?


« Last Edit: Nov 29th, 2012, 10:22am by one87th » Logged
TAB
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Posts: 1910
Re: Maximum grade for a trolley line?
  Fairview_Grade.jpg - 30290 Bytes
« Reply #1 on: Nov 27th, 2012, 11:02pm »
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.....Pittsburgh Railways Fairview Avenue Line, Route 21, had a maximum grade of 12.24%
 
Smith, Harold A. (1992). Touring Pittsburgh by Trolley: A Pictorial Review of the Early Sixties. New York: Quadrant Press, Inc.. ISBN 0-915276-48-8.
 
....Tom


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