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Showing posts with label Vents. Show all posts
Showing posts with label Vents. Show all posts

Tuesday, July 15, 2014

Let Me Vent Again II

  In an earlier post, I told you about my experience as a child riding on the Fourth Avenue Subway in Brooklyn, particularly on express trains, and seeing in the tunnel at almost each block, a large amount of sunlight illuminating the two middle express tracks.  There was so much light, that a casual observer on a rainy day may see that the third rail protection boards were wet.  These illuminated vaults, stretched from south of Pacific Street to south of the 36th Street station.  I do not remember if the outer Fourth Avenue Line, to 86th Street had the same types of vents.  Around 1960, they were gone probably because the Department of Transportation made the middle island narrower so more lanes could fit in the street.  Also, the grill work does not allow that much sunlight to enter.

    In the picture below, obtained from the New York Transit Museum Archive, is a 1910 photo showing the Fourth Avenue subway under construction.  You can see the alignment of the vents above.  A lot a sun light comes in, even though in this case, the grillwork has not been installed yet on the central median.   If you look further down the track, the light vault seems to repeat at the next block.


  It was nice to be in a triplex Type D Sea Beach Express train on the express track and seeing the interplay of light and shadow while listening to the beautiful music that the Triplexes produced.  The original IRT subway, for most sections was built cut and cover and the roof of the tunnel was supported by steel girders.  When the Independent Subway was built, usually a solid cinder block or cement wall separated the express and local tracks.  In the Fourth Avenue Subway in Brooklyn, at least between 36th Street and Pacific Street, a slotted wall separated the express tracks from the local tracks.  Notice that this slotted was is on the right of this picture.  The vents are above a wall separating the uptown and downtown express tracks.  This visual interplay of light and dark, as viewed through a slotted wall was very interesting and this wall had an effect on the sounds that were emitted by the Triplexes or the BMT Standard Cars.

Tuesday, February 18, 2014

Let me Vent a Little: The BMT Fourth Avenue Subway and its' Vent Vaults

Hi Folks:

  The Fourth Avenue Subway that runs along Fourth Avenue in Brooklyn south of the historic Williamsburgh Bank building is a busy line that predates the Independent Subway by many years. Today, the D, N and R routes provide service but when I was  a child, other names were used to describe the service:  West End Express, West End Location, Sea Beach Express, Culver Express and Culver Local and the local of locals, the Fourth Avenue Local.  Interesting equipment  such as the three car articulated "D" types were on the Sea Beach and on the occasional West End Express.  The Fourth Avenue Local had the BMT standards and some borrowed IND R1-9 types. The Culver Line

 and West End Local usually ran BMT standards and in later years, a modified IRT Lo-V and some SIRT BMT look alike cars.  Most of you "youngsters" probably do not know, that the Fourth Avenue Subway until around 1960 had a different "look" to it in that between south of Pacific Street to south of 36th Street Stations  the express tracks were exposed to tremendous amount of light from the air vents above.  So much light was provided, that a passenger in a Fourth Avenue local sitting on the side of the express tracks would be able to see that it was raining outside because the wooden protection boards were wet.  It was very bright for whole sections with the sunlight streaming in.  This dance of sunlight against the wall went very well with the special music that the Triplex Type D cars produced on the Sea Beach Express as it speeded along Fourth Avenue. Today, a passenger can see a slightly paler shade of concrete along the wall that separates the express tracks below the current air vents.

It would have been nice that any redesign of Fourth Avenue would bring natural light into the subway as in days of old.


Does any old timer remember the lighted vent vaults between Pacific and 36th Street?

What was the situation between 36 th Street and 86 th Street?


Currently, there is some discussion to modify Fourth Avenue in terms of width, the width of the central island and car turns.  I believe, a few years ago, Fourth Avenue was supposed to be redesigned due to the new residential construction along the avenue.


A post card showing Fourth Avenue around 1905-7 before the subway was built.  At 53rd Street and Fourth Avenue.





The next series shows a more modern Fourth Avenue. The above picture is probably from 1959 perhaps after the center island was made narrower.


Slightly larger vents, perhaps before being made narrower.

You can see that most of the island is taken up by the vent, thus letting much light and air into the subway.  Later vents were higher up and narrower.

Notice that the island appears to be higher over here.  The Williamsburgh  Bank Building is in the center.


This image was produced by Google Maps by pointing to 22 Street and Fourth Avenue Brooklyn.  Notice how narrow this divider is.  I do not know if this is recent construction.