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Vertical Elements Raised Crosswalk <br />Purpose <br />A raised crosswalk is a speed table <br />designed as a pedestrian crossing, usually <br />at mid -block to provide additional warning <br />of a pedestrian crossing <br />Source: Institute of Transportation Engineers Traffic calming: State of <br />Practice <br />Effects <br />Volumes <br />Possible reduction in traffic volumes <br />Speed <br />Decrease in speed at crosswalk <br />Traffic Noise and Air <br />Possible increase in traffic noise <br />Traffic Safety <br />May increase awareness of pedestrians <br />Advantages <br />• Speed control at pedestrian crossing <br />• Increases pedestrian visibility and awareness to driver <br />• May reduce traffic volumes <br />Disadvantages <br />• Possible increase in noise <br />• Possible diversion of traffic to other streets <br />• May impact drainage <br />Problems Targeted <br />• High mid -block pedestrian crossing and excessive vehicle speeds <br />Design <br />• Should be placed in mid -block <br />• Not appropriate for grades greater than 5 percent <br />• Most common height is between 3 and 4 inches and typically have ramps 6 feet <br />long <br />APRIL 2005 30 <br />