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Re: ''Transit advocates urge Hochul to scrap LaGuardia AirTrain''

Posted by AlM on Sat Sep 11 20:31:44 2021, in response to Re: ''Transit advocates urge Hochul to scrap LaGuardia AirTrain'', posted by Stephen Bauman on Sat Sep 11 20:12:31 2021.

See my other post for doubt as to how much altitude needs to be gained from the N/R/W. I see that the ground level just south of Astoria Blvd is hardly different from ground level at the Hell Gate crossing.

Also, freights have 2.2% gradients. NYCT has higher gradients.

The Manhattan Bridge is 135 feet above sea level according to Google. The portal at the northwest end of the bridge is just at the 30 foot contour and about 2000* feet from the center of the bridge. That's about a 5% gradient: 100 feet gain in 2000 feet.

* Hard to tell exactly - maybe it's 2500 feet; 105/2500 = 4.2%.


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