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| Re: tracks after 57th St/6 Av (1224644) | |||
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Re: tracks after 57th St/6 Av |
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Posted by NorthShore on Sat May 25 09:45:33 2013, in response to Re: tracks after 57th St/6 Av, posted by Andrew Saucci on Sat May 25 09:38:21 2013. Those knee walls were sound buffers.They were concrete block with small slits to deflect sound. They work excellently and I wonder why they were not used at more stations throughout the system They were also used along Queens Blvd. which had fast expresses speeding past local stations, many on curves, causing unbearable screeching. These walls completely deadened the sound. It just sounded like a whooshing sound with these knee walls. |
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