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' 9. <br />Intersection Control —Turn Restrictions <br />General Information <br />• Typically installed to reduce cut through traffic <br />or prohibit turning movements along a mainline <br />that are difficult during the peak periods or <br />unsafe. <br />• Can also be installed to improve traffic flow or <br />provide safer pedestrian facilities. <br />• "Do Not Block Intersection" signs are also a <br />common request. A further traffic study may <br />be necessary to determine if a "Do Not Block <br />Intersection" signing is required. <br />• Installing the signs without providing a viable <br />alternative route will lead to poor compliance. <br />• Typically, enforcement is necessary to ensure <br />compliance. <br />• If done to resolve a cut through volume issue, <br />a similar issue could be expected on adjacent <br />roadways. <br />• In order to improve compliance, other physical <br />barriers may be necessary (i.e. median barriers, <br />channelization) <br />28 DECEMBER 2017 1 LOCAL ROAD RESEARCH BOARD <br />Effectiveness <br />• Volumes: Volumes are expected to be reduced <br />on the street with restrictions, however, <br />adjacent streets will see an increase in volumes. <br />• Speeds: Speeds could be reduced with a <br />reduction of vehicles performing a cut through. <br />• Safety: Can improve safety at access points or <br />main streets but alternative routes could see an <br />increase in crashes. <br />• Prohibiting right -turns on red at traffic signals <br />improves safety for pedestrians. <br />