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Thursday, November 17, 2016

16th Avenue and 72nd Street New Utrecht Intersection: Altitude Error

The two maps shown below were produced in QGIS.  I brought in the contour file of altitude that I used before and I brought in the subway line file which shows the B train tracks over New Utrecht Avenue Brooklyn.  The vertical line that I mentioned in earlier posts crosses New Utrecht Avenue at 16th Avenue and 72nd Street.  In one map, I brought in the elevations and the elevation does not vary that much from 10 or 11 meters.  In the vertical error line, there is no variation as expected.  A  Google street view of the  area shows nothing unusual.

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