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California MUTCD Page 6F-12 <br /> (FHWA's MUTCD 2003 Revision 1,as amended for use in California) <br /> Section 6F.30 Two-Way Traffic Sign (W6-3) <br /> Guidance: <br /> When one roadway of a normally divided highway is closed,with two-way vehicular traffic maintained <br /> on the other roadway,the Two-Way Traffic(W6-3) sign(see Figure 6F-4, Sheet 2 of 4)should be used at the <br /> beginning of the two-way vehicular traffic section and at intervals to remind road users of opposing vehicular <br /> traffic. <br /> Guidance: <br /> The Two-Way Traffic(W6-3)sign should also be used at locations where motorists could perceive that they are on a <br /> one-way roadway when, in fact,they are on a two lane,two-way highway. <br /> Support: <br /> Following are some typical situations: <br /> • Construction sites where a two-lane highway is being converted to a freeway or an expressway. <br /> • Two-lane, two-way highways where ultimate freeway or expressway right-of-way has been purchased and <br /> grading for the full width has been completed. <br /> • Two-lane, two-way highways following long sections of multi-lane freeway or expressway. <br /> Section 6F.31 Workers Sign(W21-1,W21-1a) <br /> Option: <br /> A Workers (W21-la) symbol sign(see Figure 6F-4, Sheet 3 of 4)may be used to alert road users of <br /> workers in or near the roadway. <br /> Guidance: <br /> In the absence of other warning devices,a Workers symbol sign should be used when workers are in the <br /> roadway. <br /> Option: <br /> The WORKERS (W21-1)word message sign may be used as an alternate to the Workers(W21-1a) <br /> symbol sign. <br /> Section 6F.32 FRESH OIL(TAR)Sign(W21-2) <br /> Guidance: <br /> The FRESH OIL(TAR)(W21-2)sign(see Figure 6F-4, Sheet 3 of 4)should be used to warn road users <br /> of the surface treatment. <br /> Section 6F.33 ROAD MACHINERY AHEAD Sign(W21-3) <br /> Option: <br /> The ROAD MACHINERY AHEAD(W21-3)sign(see Figure 6F-4, Sheet 3 of 4)may be used to warn <br /> of machinery operating in or adjacent to the roadway. <br /> Section 6F.34 Motorized Traffic Signs(W8-6,W11-10) <br /> Option: <br /> Motorized Traffic (W8-6,W11-10)signs may be used to alert road users to locations where unexpected <br /> travel on the roadway or entries into or departures from the roadway by construction vehicles might occur. <br /> The TRUCK CROSSING(W8-6)word message sign may be used as an alternate to the Truck Crossing <br /> symbol(W11-10) sign(see Figure 617-4, Sheet 2 of 4)where there is an established construction vehicle <br /> crossing of the roadway. <br /> Support: <br /> These locations might be relatively confined or might occur randomly over a segment of roadway. <br /> Section 6F.35 Shoulder Work Signs(W21-5,W21-5a,) <br /> Support: <br /> Shoulder Work signs (see Figure 617-4, Sheets 3 and 4 of 4)warn of maintenance,reconstruction,or <br /> utility operations on the highway shoulder where the roadway is unobstructed. <br /> Chapter 6F—Temporary Traffic Control Zone Devices September 26,2006 <br /> Part 6-Temporary Traffic Control <br />