As you have seen in a previous post two of the nine new speed bumps in the multi-block new "Riverdale Slow Zone" (pictured above, click on the photo to enlarge it.) have been placed on Independence Avenue between West 232nd and 235th Streets. In that post we took pictures of the huge speed bumps showing just how large they are. One photo was of the skid marks on one speed bump, as there is only one sign on the sidewalk where the speed bump starts. We also showed in one photo how that one sign can be blocked thus giving no warning that a speed bump is ahead.
Assemblyman Jeffrey Dinowitz sponsored the application for the "Riverdale Slow Zone", and (in a recent political mailing) city council candidate Cliff Stanton is claiming his perseverance with the PS 24 PA were the reason for the awarding of the "Riverdale Slow Zone" by the Department of Transportation.
We went around to see other areas where speed bumps have been placed. There is a warning sign 25 feet before the speed bump in addition to a sign at the speed bump. There are also markings on the roadway warning of an impending speed bump, and at the start of the bump is another marking. So why did the DOT put only one warning sign at the start of a huge speed bump on a heavily traveled emergency route such as Independence Avenue? By the way we went around the corner on West 235th Street where a speed bump already exists, and that has several signs and road markings to warn of the upcoming speed bump as in the photos below.
Left - As you see in this photo the driver is made aware of upcoming speed bump with two separate warning signs and road markings.
Right - Again several signs and road markings warn drivers of the upcoming speed bump.
Left - Again you can see on this street that drivers are given advance warning of the upcoming speed bump.
Right - On this road warning signs are posted on both sides of the street in addition to street markings.