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studies and actions. This ensures that simple or incidental requests can be addressed by City staff <br />without the necessity of a petition. <br /> <br />Roadway Eligibility: <br />• Road classification (local or collector) <br />• Length > 1,000 ft <br />• Volume > 1,000 vpd <br />• Posted speed ≤ 30 MPH <br />• Not a cul-de-sac <br /> <br />Petition No. 1 (neighborhood consensus): <br />If a street is eligible for traffic calming, City staff will request that resident(s) submit a petition to <br />the City to determine if the concern is widespread and there is consensus among the <br />neighborhood to pursue installation of a traffic calming device(s). City staff will prepare a map <br />defining the households within the affected area. The requester will be asked to circulate and <br />complete a City furnished petition form for residents living within the affected area. Below are <br />the established requirements needed for a successful petition effort. <br />• 67 percent of the households located in the affected area <br />• 80 percent of the households on the affected street <br /> <br />Only one vote per residential unit will be counted towards the petition. <br /> <br />Level 1 Analysis: <br />Staff will identify the issue or problem by collecting the appropriate traffic information, such as <br />but not limited to: <br />• Crash history <br />• Speed data collection (speed trailer and/or tube counters) <br />• Traffic volume (turning movement counts or tube counters) <br />• Existing traffic control devices <br />• Type of access points <br />• Road condition <br />• Site visit (sight distance measurements / analysis) <br /> <br />Staff will also conduct field observations and review the signing, striping, and traffic control in <br />the area. <br />The Level 1 speed study will consist of speed data collected by a speed trailer or tube counters. <br />In analyzing the speed data, the Pace of the traffic and the 85th Percentile Speed will be <br />calculated from this data. Pace and 85th Percentile speed are defined as follows: <br />• Pace – The 10 MPH range of speeds containing the largest number of observations <br />• 85th Percentile Speed – The speed at or below which 85 percent of the traffic is moving. <br /> <br />Typically, the 85th Percentile Speed is within two miles per hour of the upper limit of the Pace. <br />A normal speed distribution will contain approximately 70% of the sample within the Pace with <br />15% above and 15% below. <br />Based on the data collected, a preliminary speeding issue will be identified if: <br />• The calculated 85th Percentile speed from the Level 1 data is greater than the posted <br />speed. <br />• More than 15% of the vehicles are traveling faster than the 10 MPH Pace. <br />