Solutions 4 New York

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Improper Traffic Signals

Here are some examples of improper traffic signals.

Federal law (MUTCD 4D-11) requires 2 (visible) overhead signals.

[Mott Av at B22  St.]

Signals should be visible (MUTCD 4D-12.  The one on the right isn’t because of both vertical and horizontal alignment issues.  [Beach Channel Drive at Cornaga Av.]

Federal law (MUTCD 4D-11) requires 2 (visible) overhead signals.

[Edgemere Av at B41  St.]

Federal law (MUTCD 4D-11) requires 2 (visible) overhead signals.

[Rockaway Freeway at B25  St. - This is typical of Rockaway Freeway intersections.]

Signal yellow interval must be longer when the road slopes down to the intersection.  Here all approaches slope down to the intersection but yellow time is only NYC standard.  [Beach Channel Drive at Cornaga Av.]

Proper yellow time is calculated according to federal guidelines available here.  At a 30 mph approach (not speed limit)  speed, the signals should be yellow for 3.2 seconds.