Work on Shoulder <br /> (Non-Freeway) <br /> f <br /> • (Optional) <br /> ~~1 <br /> Posted Sign <br /> Seed Spacing {ft) Buffer <br /> ' fZ51- Truck-mounted (mph) A B (ft) <br /> Attenuator <br /> ~ 30 100 100 50- <br /> (Optional) or less 100 <br /> ~-Buffer 35 - 40 350 350 250 <br /> ~ ~ 45 - 55 500 500 350 <br /> • L/3 <br /> A <br /> SHOULDER or SHOULDER <br /> <br /> ! CLOSED WORK <br /> AHEAD <br /> B <br /> ~ ~I~ <br /> ROAD <br /> WORK Initial Warning Sign <br /> j ~ AHEAD <br /> I <br /> I <br /> 7k Use as appropriate -see Table 4-2 <br /> Diagram No. 210 <br /> 57 <br /> <br />