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Vertical Elements 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 />Zama <br />_ter .WIF <br />-r* <br />Source: Institute of Transportation Engineers Traffic Calming: State of <br />Effects <br />Volumes <br />Reduces traffic volumes in the eliminated direction <br />Speed <br />Possible speed reduction <br />Traffic Noise and Air <br />Little or no effect <br />Traffic Safety <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 />APRIL 2005 35 <br />