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CITY OF BLAINE NEIGHBORHOOD TRAFFIC MANAGEMENT PLAN <br />most applied and successful measures as documented in the research summarized in Appendix <br />B. The toolbox includes a brief description of the strategy, its effects on volume, speed, noise, <br />and safety, a discussion of its advantages and disadvantages and design considerations. The <br />following strategies are included in the toolbox: <br />Traffic Control Devices <br />Vehicle Restrictions <br />Tum Restrictions <br />One -Way Streets <br />Watch Children Signs <br />Stop Sign Implementation <br />All -Way Stop Sign Implementation <br />Parking Restrictions <br />Pavement Markings <br />Speed Limits <br />Enforcement <br />Increased Enforcement <br />Roadway Adjustments <br />Narrowing Lanes <br />Chokers <br />Mid -Block Narrowing <br />Chicane <br />Vertical Elements <br />Speed Humps/BumpslTables <br />Raised Crosswalk <br />Median Barrier <br />Traffic Circle <br />Street Closure <br />Full Diagonal Diverter <br />Variable Speed Display Board Partial Diverter <br />Effectiveness of Strategies <br />As stated earlier, traffic management strategies are not universally applicable or effective at <br />solving all problems. The Institute of Transportation Engineers has collected data on the <br />effectiveness of traffic management strategies implemented throughout the United States. Table <br />2provides a summary of this data and can be useful in the selection of appropriate traffic <br />management strategy to implement. Along with the information provided in Table 2 on <br />effectiveness, the following are some other effectiveness considerations: <br />Traffic control devices, by themselves, are almost never effective at reducing traffic <br />volumes or vehicle speeds. <br />Enforcement can be effective if applied regularly and over an extended period of time. <br />In most cases, enforcement will result in local residents being ticketed. <br />Roadway adjustments (narrowing) have proven to be moderately effective but at high <br />implementation costs. <br />Vertical elements (primarily speed humps /bumps) have proven to be moderately <br />effective but neighborhood acceptance has been mixed. <br />The combination of enforcement plus other strategies has proven to be the most effective <br />approach. <br />APRIL 2005 7 <br />