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Page 6H-6 December 2000 <br /> Notes for Figure 6H-1—typical Application 1 <br /> Work Beyond the Shoulder <br /> Guidance: <br /> 1. If the work space is in the median of a divided highway, an advance warning sign <br /> should also be placed on the left side of the directional roadway. <br /> Option: <br /> 2. The ROAD WORK AHEAD sign may be replaced with other appropriate signs such as the <br /> SHOULDER WORK.sign. The SHOULDER WORK sign may be used for work adjacent to <br /> the shoulder. <br /> 3. The ROAD WORK AHEAD sign may be omitted where the work space is behind a barrier, <br /> more than 600 mm (24 in) behind the curb, or 4.5 m (15 ft) or more from the edge of any <br /> roadway. <br /> 4. For short-term, short-duration or mobile operation, all signs and channelizing devices may <br /> be eliminated if a vehicle with activated rotating lights or strobe lights is used. <br /> Standard: <br /> 5. Although vehicle hazard warning signals can be used to supplement the rotating <br /> lights or strobe lights, they shall not be used instead of rotating lights or strobe <br /> lights. <br /> Sect.6H.01 June 2001 <br />