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Step 4 - Develop /Evaluate Traffic Management Strategies Using the data collected during the development of the traffic study and applying recognized traffic engineering standards, the City Engineering Department will recommend the use of one or more neighborhood traffic management strategies. A "toolbox" of strategies is included in Section 6.0 of this plan. While it is not inclusive of all strategies, it provides a summary of the most applied and successful measures as documented in the research summarized in Appendix B. The toolbox includes a brief description of the strategy, its effects on volume, speed, noise, and safety, a discussion of its advantages and disadvantages and design considerations. The following strategies are included in the toolbox: Traffic Control Devices - Vehicle Restrictions - Turn Restrictions - One -Way Streets - Watch Children Signs - Stop Sign Implementation - All -Way Stop Sign Implementation - Parking Restrictions - Pavement Markings - Speed limits Enforcement - Increased Enforcement -Variable Speed Display Board Effectiveness of Strategies Roadway Adjustments - Narrowing Lanes - Chokers - Mid -Block Narrowing - Chicane 2 7 i • Vertic S ables - Raised Crosswalk - Median Barrier - Traffic Circle - Street Closure Full I Diagonal Diverter Partial Diverter DXTC n' //ZO.YI As stated earlier, traffic management strategies are not universally applicable or effective at solving all problems. The Institute of Transportation Engineers has collected data on the effectiveness of traffic management strategies implemented throughout the United States. Table 2 provides a summary of this data and can be useful in the selection of appropriate traffic management strategy to implement. Along with the information provided in Table 2 on effectiveness, the following are some other effectiveness considerations: Traffic control devices, by themselves, are almost never effective at reducing traffic volumes or vehicle speeds. • Enforcement can be effective if applied regularly and over an extended period of time. • Inmost cases, enforcement will result in local residents being ticketed. • Roadway adjustments (narrowing) have proven to be moderately effective but at high implementation costs. • Vertical elements (primarily speed humpsibumps) have proven to be moderately effective but neighborhood acceptance has been mixed. • The combination of enforcement plus other strategies has proven to be the most effective approach.