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Effects <br />Volumes <br />Speed <br />Traffic Noise and Air <br />Traffic Safety <br />Little or no effect <br />Minimal changes <br />Little or no effect. <br />Potential for improved pedestrian safety due to shorter street crossing times, but <br />at the same time bicycle safety may be compromised by physically removing part <br />of the pavement surface. <br />Advantages <br />Good for pedestrians due to shorter crossing distance <br />Provides space for landscaping <br />Does not affect emergency response time <br />Minimal inconvenience to drivers <br />Disadvantages <br />May require the prohibition of on- street parking causing hardship or <br />inconvenience for residents <br />May create drainage issues where curb and gutter exist <br />May create diversion for bicyclists <br />Problems Targeted <br />Mid -block locations with speeding and /or cut- through traffic <br />Design <br />Must not significantly impede emergency vehicle access <br />Roadway Adjustments <br />Mid -Block Narrowing <br />Purpose <br />Segment(s) of roadway narrowing where curbs <br />are extended toward the center of the roadway <br />on one or both sides of the street to constrain the <br />width of the traveled way. They provide shorter <br />pedestrian crossing distances and provide protection <br />to the beginning of a parking lane. The driver also <br />senses the roadway narrowing when approaching <br />one of these measures, which can result in speed <br />reduction. <br />Source: Institute of Transportation Engineers <br />Traffic Calming: State of Practice <br />APRIL 2005 <br />26 <br />