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Page 6H-12 <br /> 2003 Edition <br /> Notes for Figure 6H-4—Typical Application 4 <br /> Short-Duration or Mobile Operation on Shoulder <br /> Guidance: <br /> 1. In those situations where multiple work locations within a limited distance make it practical to place <br /> stationary signs, the distance between the advance warning sign and the work should not exceed 8 km <br /> (5 mi). <br /> 2. In those situations where the distance between the advance signs and the work is 3.2 km (2 mi) to 8 km <br /> (5 mi), a Supplemental Distance plaque should be used with the ROAD WORK AHEAD sign. <br /> Option: <br /> 3. The ROAD WORK NEXT XX km(MILES) sign may be used instead of the ROAD WORK AHEAD <br /> sign if the work locations occur over a distance of more than 3.2 km (2 mi). <br /> 4. Warning signs may be omitted when the work vehicle displays high-intensity rotating, flashing, <br /> oscillating, or strobe lights if the distance between work locations is 1.6 km (1 mile) or more, and if the <br /> work vehicle travels at vehicular traffic speeds between locations. <br /> 5. Vehicle hazard warning signals may be used to supplement high-intensity rotating, flashing, oscillating, <br /> or strobe lights. <br /> Standard: <br /> 6. Vehicle hazard warning signals shall not be used instead of the vehicle's high-intensity rotating, <br /> flashing,oscillating,or strobe lights. <br /> 7. If an arrow panel is used for an operation on the shoulder,the caution mode shall be used. <br />