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Effects <br />Volumes <br />Speed <br />Traffic Noise and Air <br />Traffic Safety <br />Reduces traffic volumes in the eliminated direction <br />Possible speed reduction <br />Little or no effect <br />Improved pedestrian crossing <br />Advantages <br />Allows for movement of emergency vehicles <br />Reduces traffic volumes <br />Allows two -way traffic on the remainder of the street <br />Shorter pedestrian crossing at intersection <br />Disadvantages <br />Parking may be impacted and reduced <br />Interrupts street network connectivity <br />Emergency vehicles do have to drive around partial closure with care <br />Problems Targeted <br />Excessive volumes on residential street <br />Design <br />Care has to be given in the design to not hinder unnecessarily emergency <br />vehicles due to poor design <br />Vertical Elements <br />Partial Diverter <br />Purpose <br />A partial- diverter is the narrowing of a two <br />way street in order to eliminate one <br />direction of travel. The concept can only <br />be used at an intersection and attempts to <br />reroute traffic attempting to use the <br />protected street onto other roadways. <br />APRIL 2005 <br />Source: Institute of Transportation Engineers Traffic Calming: S ate of <br />35 <br />