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| Re: SAS termini questions (127075) | |||
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Re: SAS termini questions |
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Posted by Stephen Bauman on Mon Aug 15 05:25:47 2005, in response to Re: SAS termini questions, posted by 3-9 on Mon Aug 15 04:44:15 2005. Too close to the Seaport?Correct. FEIS shows Seaport ending at Fulton St and Hanover Sq beginning "north of Pine St". That's a distance of 950 feet. The two tracks must attain a vertical clearance of around 20 feet and then come back together. Assume each track gains/loses 10 feet. This translates to a horizontal distance of 500 feet, assuming a 2% grade. Next, assume that the tracks come back together and it's another 500 feet. The switch should not be on a grade, so add another 200 feet. This means that the two stations need a minimum separation of 1200 feet. Jast a sanity check. The downtown 6th Ave tracks cross over one another between 50th and 42nd Streets. The distance between these two stations is approximately 1310 feet. |
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