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<br />The application of these techniques is based on a case-by-case basis using engineering <br />judgement Plarming and design should be coordinated with nearby residents as well as <br />emergency'and other service providers who will be affected by their use. Table 2 indicates <br />which techniques are suitable for existing and new streets, <br /> <br />Table 2 <br />TRA.FFIC CALMING DEVICE LOCATIONS <br />Traffic Calming Device Existing Street New Streets <br />Traffic Circles . . <br />Speed Humps II 11* <br />Raised Crosswalks II . <br />Curb Extensions . . <br />Chicanes . . <br />Traffic Diverters . <br />Full Diverter - Street Closure <br />Half Diverter <br />Diagona~ Diverter <br />Median Barriers . . <br />Forced Turn Channelization . . <br />Parking Bays . . <br />Pavement Surface Modification . . <br />Speed Actuated Signing . <br /> I <br /> <br />* New speed humps are to be installed only at the direction of the City Traffic Engineer.. <br /> <br />Exceptions to Address Topographv and Natural Features <br /> <br />Occasionally, streets are constructed in locations which require special accommodations such as <br />in hilly areas, or near wetlands, canals, dense vegetation, or sensitive plants and animals. In <br />these cases, specific considerations should be made to minimize negative impacts. For example, <br />wide streets along steep slopes require much larger hillside cuts than narrow streets. <br /> <br />Generally, the range of local street types make it possible to construct or improve local streets in <br />accordance with the design standards. In certain situations, however, exceptions should be made. <br />Exceptions could result in construction of meandering sidewalks, sidewalks on only one side of <br />the street, or curbside sidewalk segments instead of setback walks. Exceptions are allowed when <br />one or more of the following conditions exist. <br />