616.8 TTC Zone Warning Signs (MUTCD Chapter 6H) - Revision history

WilkeJ: /* {{SpanID|616.8.27}}616.8.27 Reverse Curve Signs (WO1-4 Series) (MUTCD Section 6H.30) */

2025-11-26T19:18:49Z

{{SpanID|616.8.27}}616.8.27 Reverse Curve Signs (WO1-4 Series) (MUTCD Section 6H.30)

← Older revision		Revision as of 14:18, 26 November 2025
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	'''Option. '''Where two or more lanes are being shifted, a WO1-4 (or WO1-3) sign with an ALL LANES (WO24-1cP) plaque may be used instead of a sign that illustrates the number of lanes.		'''Option. '''Where two or more lanes are being shifted, a WO1-4 (or WO1-3) sign with an ALL LANES (WO24-1cP) plaque may be used instead of a sign that illustrates the number of lanes.

	04 Where more than three lanes are being shifted, the Reverse Curve (or Turn) sign may be rectangular.		Where more than three lanes are being shifted, the Reverse Curve (or Turn) sign may be rectangular.

	'''Support. '''See [[903.3 Warning Signs and Object Markers (MUTCD Chapter 2C)#903.3.7\|EPG 903.3.7]] for information regarding Turn and Curve signs.		'''Support. '''See [[903.3 Warning Signs and Object Markers (MUTCD Chapter 2C)#903.3.7\|EPG 903.3.7]] for information regarding Turn and Curve signs.

WilkeJ: /* {{SpanID|616.8.38}}616.8.38 GROOVED PAVEMENT (WO8-15) */

2025-11-26T19:17:45Z

{{SpanID|616.8.38}}616.8.38 GROOVED PAVEMENT (WO8-15)

← Older revision		Revision as of 14:17, 26 November 2025
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	[[File:WO8-15.png\|thumb\|center\|100px\|alt=\|<center>'''WO8-15'''</center>]]		[[File:WO8-15.png\|thumb\|center\|100px\|alt=\|<center>'''WO8-15'''</center>]]

	'''Standard. '''When cold-milled areas are left opened to traffic, the GROOVED PAVEMENT (WO8-15) sign shall be used in locations described in [https://www.modot.org/missouri-standard-specifications-highway-construction\| Specifications Section 622].		'''Standard. '''When cold-milled areas are left opened to traffic, the GROOVED PAVEMENT (WO8-15) sign shall be used in locations described in [https://www.modot.org/missouri-standard-specifications-highway-construction Specifications Section 622].

	'''Support. '''Since designers cannot estimate the various times a contractor may leave a milled area opened to traffic, these signs are not shown on the traffic control plan. These signs, if used, are furnished by the contractor at the contractor's expense.		'''Support. '''Since designers cannot estimate the various times a contractor may leave a milled area opened to traffic, these signs are not shown on the traffic control plan. These signs, if used, are furnished by the contractor at the contractor's expense.

WilkeJ: /* {{SpanID|616.8.38}}616.8.38 GROOVED PAVEMENT (WO8-15) */

2025-11-26T19:16:55Z

{{SpanID|616.8.38}}616.8.38 GROOVED PAVEMENT (WO8-15)

← Older revision		Revision as of 14:16, 26 November 2025
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	[[File:WO8-15.png\|thumb\|center\|100px\|alt=\|<center>'''WO8-15'''</center>]]		[[File:WO8-15.png\|thumb\|center\|100px\|alt=\|<center>'''WO8-15'''</center>]]

	'''Standard .'''When cold-milled areas are left opened to traffic, the GROOVED PAVEMENT (WO8-15) sign shall be used in locations described in [https://www.modot.org/missouri-standard-specifications-highway-construction\| Specifications Section 622].		'''Standard. '''When cold-milled areas are left opened to traffic, the GROOVED PAVEMENT (WO8-15) sign shall be used in locations described in [https://www.modot.org/missouri-standard-specifications-highway-construction\| Specifications Section 622].

	'''Support .'''Since designers cannot estimate the various times a contractor may leave a milled area opened to traffic, these signs are not shown on the traffic control plan. These signs, if used, are furnished by the contractor at the contractor's expense.		'''Support. '''Since designers cannot estimate the various times a contractor may leave a milled area opened to traffic, these signs are not shown on the traffic control plan. These signs, if used, are furnished by the contractor at the contractor's expense.

	'''Standard. '''When the GROOVED PAVEMENT (WO8-15) sign is in place for greater than three days, the Motorcycle (WO8-15aP) plaque shall be used in addition to the WO8-15 sign.		'''Standard. '''When the GROOVED PAVEMENT (WO8-15) sign is in place for greater than three days, the Motorcycle (WO8-15aP) plaque shall be used in addition to the WO8-15 sign.

RollerA: /* {{SpanID|616.8.40}}616.8.40 Vehicle Speed Feedback System (Radar Speed Advisory System) */

2025-11-25T20:49:20Z

{{SpanID|616.8.40}}616.8.40 Vehicle Speed Feedback System (Radar Speed Advisory System)

← Older revision		Revision as of 15:49, 25 November 2025
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	{{SpanID\|fig616.8.40}}		{{SpanID\|fig616.8.40}}
	[[File:Figure 616.8.~~42.~~ Vehicle Speed Feedback ~~Plaque_v3~~.png\|thumb\|center\|250px\|alt=The figure shows an example assembly of a work zone speed feedback display. At the top is an orange rectangular sign labeled “WORK ZONE” with a black border, identified as sign GO20-5aP. Below it is a standard white speed limit sign with the message “SPEED LIMIT 35.” Beneath the speed limit sign is an orange electronic feedback sign labeled “YOUR SPEED,” displaying the number “42” in illuminated yellow digits; this sign is identified as WO13-20aP. A note below the assembly states that the supplemental plaque is installed below a speed limit sign and is used downstream of speed limit changes or within a speed zone to reaffirm the speed limit.		[[File:Figure 616.8.40 Vehicle Speed Feedback Plaque.png\|thumb\|center\|250px\|alt=The figure shows an example assembly of a work zone speed feedback display. At the top is an orange rectangular sign labeled “WORK ZONE” with a black border, identified as sign GO20-5aP. Below it is a standard white speed limit sign with the message “SPEED LIMIT 35.” Beneath the speed limit sign is an orange electronic feedback sign labeled “YOUR SPEED,” displaying the number “42” in illuminated yellow digits; this sign is identified as WO13-20aP. A note below the assembly states that the supplemental plaque is installed below a speed limit sign and is used downstream of speed limit changes or within a speed zone to reaffirm the speed limit.
	\|'''Figure 616.8.40''' Vehicle Speed Feedback Plaque]]		\|'''Figure 616.8.40''' Vehicle Speed Feedback Plaque]]

RollerA: /* {{SpanID|616.8.39}}616.8.39 NARROW LANES (WO5-5) */

2025-11-25T20:48:12Z

{{SpanID|616.8.39}}616.8.39 NARROW LANES (WO5-5)

← Older revision		Revision as of 15:48, 25 November 2025
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	=={{SpanID\|616.8.39}}616.8.39 NARROW LANES (WO5-5)==		=={{SpanID\|616.8.39}}616.8.39 NARROW LANES (WO5-5)==
	[[File:~~F06H-01-1_WO5~~-5.png\|thumb\|center\|100px\|alt=\|<center>'''WO5-5'''</center>]]		[[File:WO5-5.png\|thumb\|center\|100px\|alt=\|<center>'''WO5-5'''</center>]]

	'''Option. '''The NARROW LANES (WO5-5) sign may be used on multilane highways where the lane width is temporarily reduced.		'''Option. '''The NARROW LANES (WO5-5) sign may be used on multilane highways where the lane width is temporarily reduced.

RollerA: /* {{SpanID|616.8.38}}616.8.38 GROOVED PAVEMENT (WO8-15) */

2025-11-25T20:47:15Z

{{SpanID|616.8.38}}616.8.38 GROOVED PAVEMENT (WO8-15)

← Older revision		Revision as of 15:47, 25 November 2025
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	=={{SpanID\|616.8.38}}616.8.38 GROOVED PAVEMENT (WO8-15)==		=={{SpanID\|616.8.38}}616.8.38 GROOVED PAVEMENT (WO8-15)==
	[[File:~~F06H~~-~~01-2_WO8-15_v3~~.png\|thumb\|center\|100px\|alt=\|<center>'''WO8-15'''</center>]]		[[File:WO8-15.png\|thumb\|center\|100px\|alt=\|<center>'''WO8-15'''</center>]]

	'''Standard .'''When cold-milled areas are left opened to traffic, the GROOVED PAVEMENT (WO8-15) sign shall be used in locations described in [https://www.modot.org/missouri-standard-specifications-highway-construction\| Specifications Section 622].		'''Standard .'''When cold-milled areas are left opened to traffic, the GROOVED PAVEMENT (WO8-15) sign shall be used in locations described in [https://www.modot.org/missouri-standard-specifications-highway-construction\| Specifications Section 622].

RollerA: /* {{SpanID|616.8.37}}616.8.37 Reduced Speed Limit Ahead (WO3-5) */

2025-11-25T20:46:02Z

{{SpanID|616.8.37}}616.8.37 Reduced Speed Limit Ahead (WO3-5)

← Older revision		Revision as of 15:46, 25 November 2025
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	=={{SpanID\|616.8.37}}616.8.37 Reduced Speed Limit Ahead (WO3-5)==		=={{SpanID\|616.8.37}}616.8.37 Reduced Speed Limit Ahead (WO3-5)==
	[[File:~~F06H-01-1_WO3~~-5.png\|thumb\|center\|100px\|alt=\|<center>'''WO3-5'''</center>]]		[[File:WO3-5.png\|thumb\|center\|100px\|alt=\|<center>'''WO3-5'''</center>]]

	'''Standard. '''The Reduced Speed Limit Ahead (WO3-5) sign shall be used when the geometrics of the roadway require an approved speed reduction greater than 10 mph below the existing or posted speed limit.		'''Standard. '''The Reduced Speed Limit Ahead (WO3-5) sign shall be used when the geometrics of the roadway require an approved speed reduction greater than 10 mph below the existing or posted speed limit.

RollerA: /* {{SpanID|616.8.35}}616.8.35 PILOT CAR FOLLOW ME Sign (GO20-4) and PILOT CAR IN USE WAIT & FOLLOW (GO20-4a) (MUTCD Section 6H.37) */

2025-11-25T20:45:01Z

{{SpanID|616.8.35}}616.8.35 PILOT CAR FOLLOW ME Sign (GO20-4) and PILOT CAR IN USE WAIT & FOLLOW (GO20-4a) (MUTCD Section 6H.37)

← Older revision		Revision as of 15:45, 25 November 2025
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	<center>		<center>
	{\|		{\|
	\| [[File:~~F06H-01-4_GO20~~-4~~@4x~~.png\|thumb\|center\|100px\|alt=\|<center>'''GO20-4'''</center>]]		\| [[File:GO20-4.png\|thumb\|center\|100px\|alt=\|<center>'''GO20-4'''</center>]]
	\| [[File:~~F06H-01-4_GO20~~-4a~~@4x~~.png\|thumb\|center\|100px\|alt=\|<center>'''GO20-4a'''</center>]]		\| [[File:GO20-4a.png\|thumb\|center\|100px\|alt=\|<center>'''GO20-4a'''</center>]]
	\|}		\|}
	</center>		</center>

RollerA: /* {{SpanID|616.8.34}}616.8.34 END ROAD WORK Sign (GO20-2) (MUTCD Section 6H.36) */

2025-11-25T20:43:16Z

{{SpanID|616.8.34}}616.8.34 END ROAD WORK Sign (GO20-2) (MUTCD Section 6H.36)

← Older revision		Revision as of 15:43, 25 November 2025
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	=={{SpanID\|616.8.34}}616.8.34 END ROAD WORK Sign (GO20-2) (MUTCD Section 6H.36)==		=={{SpanID\|616.8.34}}616.8.34 END ROAD WORK Sign (GO20-2) (MUTCD Section 6H.36)==
	[[File:~~F06H-01-4_GO20~~-2~~@4x~~.png\|thumb\|center\|100px\|alt=\|<center>'''GO20-2'''</center>]]		[[File:GO20-2.png\|thumb\|center\|100px\|alt=\|<center>'''GO20-2'''</center>]]

	'''Guidance. '''When used, the END ROAD WORK (G20-2) sign should be placed near the downstream end of the termination area, as determined by engineering judgment when the ROAD WORK NEXT XX MILES sign is used.		'''Guidance. '''When used, the END ROAD WORK (G20-2) sign should be placed near the downstream end of the termination area, as determined by engineering judgment when the ROAD WORK NEXT XX MILES sign is used.

RollerA: /* {{SpanID|616.8.33}}616.8.33 ROAD WORK NEXT XX MILES Sign (GO20-1) (MUTCD Section 6H.35) */

2025-11-25T20:42:21Z

{{SpanID|616.8.33}}616.8.33 ROAD WORK NEXT XX MILES Sign (GO20-1) (MUTCD Section 6H.35)

← Older revision		Revision as of 15:42, 25 November 2025
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	=={{SpanID\|616.8.33}}616.8.33 ROAD WORK NEXT XX MILES Sign (GO20-1) (MUTCD Section 6H.35)==		=={{SpanID\|616.8.33}}616.8.33 ROAD WORK NEXT XX MILES Sign (GO20-1) (MUTCD Section 6H.35)==
	[[File:~~F06H-01-4_GO20~~-1~~@4x~~.png\|thumb\|center\|100px\|alt=\|<center>'''GO20-1'''</center>]]		[[File:GO20-1.png\|thumb\|center\|100px\|alt=\|<center>'''GO20-1'''</center>]]

	'''Guidance. '''The ROAD WORK NEXT XX MILES (GO20-1) sign should be installed in advance of TTC zones that are more than 2 miles in length.		'''Guidance. '''The ROAD WORK NEXT XX MILES (GO20-1) sign should be installed in advance of TTC zones that are more than 2 miles in length.

← Older revision		Revision as of 15:47, 25 November 2025
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	=={{SpanID\|616.8.38}}616.8.38 GROOVED PAVEMENT (WO8-15)==		=={{SpanID\|616.8.38}}616.8.38 GROOVED PAVEMENT (WO8-15)==
	[[File:~~F06H~~-~~01-2_WO8-15_v3~~.png\|thumb\|center\|100px\|alt=\|<center>'''WO8-15'''</center>]]		[[File:WO8-15.png\|thumb\|center\|100px\|alt=\|<center>'''WO8-15'''</center>]]

	'''Standard .'''When cold-milled areas are left opened to traffic, the GROOVED PAVEMENT (WO8-15) sign shall be used in locations described in [https://www.modot.org/missouri-standard-specifications-highway-construction\| Specifications Section 622].		'''Standard .'''When cold-milled areas are left opened to traffic, the GROOVED PAVEMENT (WO8-15) sign shall be used in locations described in [https://www.modot.org/missouri-standard-specifications-highway-construction\| Specifications Section 622].