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City of Des Plaines Neighborhood Traffic Management Policy <br />Appendix A <br />These traffic control measures form the basis from which the final recommendations for each <br />neighborhood are to be selected. They are divided into subsections and follow the order listed in <br />the text of this report. Not all measures are appropriate in all situations. Each may have different <br />impacts and levels of inconvenience on neighborhoods. <br />SPEED MONITORING OPTIONS <br />ALLOWABLE TRAFFIC CONTROL MEASURES <br />Traditional Police Enforcement <br />Police enforcement is an essential part of any traffic management plan. However, it must be <br />recognized that enforcement is staff intensive and it is impossible to have constant patrol of <br />an area. In addition, once a campaign of enforcement has ended, driver behavior tends to <br />return to "normal." <br />Mobile Radar Speed Display <br />This is a trailer mounted unit that has radar and a speed display showing the speed of the <br />vehicle to the driver. These units are effective in slowing vehicles while they are in place. <br />The City has two units that are rotated throughout the City. <br />"Keep Kids Alive, Drive 25" Campaign <br />This is an educational campaign involving the placement of signage on lawns along a street <br />for a fixed period of time. The Police launched a pilot of this program in 2009 in <br />coordination with their neighborhood watch program. The signage can be rotated to <br />trouble locations throughout the City similar to the mobile radar speed display. <br />CHANGES TO TRAFFIC CONTROL <br />Turn Restrictions <br />This measure involves restricting turning movements into or out of neighborhood streets <br />and has been shown to be effective in reducing cut through traffic. These do require an <br />ordinance. In addition, since many of the arterials within the City are under the jurisdiction <br />of IDOT or Cook County Highway, coordination with these agencies will be required. <br />While relatively easy and inexpensive to implement, turn restrictions do have drawbacks. <br />First, the turn restrictions apply to residents as well as non residents, and so can introduce <br />an inconvenience to residents on a street. The second drawback is that turn restrictions <br />will tend to concentrate cut through traffic to adjacent streets and so a series of turn <br />restrictions may be necessary. Finally, regular police enforcement is necessary to maintain <br />the effectiveness of these restrictions. <br />Signage <br />Placing additional regulatory signs (e.g. stop signs, lowered speed limit signs) is often the <br />first request of residents in response to perceived speed issues. However, the location of <br />H:lfingineering\Traffic and Trausportaliun \Traffic Calming\Neighborhood Traffic Management Policy\Individual <br />files\Original Word -Excel files Draft Des Plaines Traffic Mgmt Policy App A Measures.doc <br />