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5-84 TRAFFIC CONTROLS Traffic Manual <br /> 1.1996 <br /> Work Beyond the Shoulder <br /> 1. The signs illustrated in this figure are not required if the work space is behind a barrier,more than 0.6 <br /> m behind the curb, or 4.6 m-or more from the edge of any roadway. ; ' <br /> 2. The C-22B WORKER symbol sign may be replaced with other appropriate signs, such as the <br /> SHOULDER WORK AHEAD sign. The SHOULDER WORK AHEAD sign may be used for work <br /> adjacent to the shoulder. <br /> 3. If the work space is in the median of a divided highway,.an advance warning sign should also be placed <br /> on the left side of the directional roadway. <br /> 4. For short-term,short-duration,or mobile operation,all signs and channelizing devices may be eliminated <br /> if a vehicle with an,activated flashing or revolving yellow light is used. <br />