616.2 Temporary Traffic Control Elements (MUTCD Chapter 6B) - Revision history

WilkeJ: /* {{SpanID|616.2.4}}616.2.4 Advance Warning Area (MUTCD Section 6B.04) */

2025-12-01T14:16:22Z

{{SpanID|616.2.4}}616.2.4 Advance Warning Area (MUTCD Section 6B.04)

← Older revision		Revision as of 09:16, 1 December 2025
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	\|-		\|-
	\| Urban (35 mph or less)		\| Urban (35 mph or less)
	\| ~~200~~ feet		\| 100 feet
	\| ~~200~~ feet		\| 100 feet
	\| ~~200~~ feet		\| 100 feet
	\|-		\|-
	\| Urban (40 mph or more)		\| Urban (40 mph or more)

WilkeJ: /* {{SpanID|616.2.4}}616.2.4 Advance Warning Area (MUTCD Section 6B.04) */

2025-11-26T19:05:22Z

{{SpanID|616.2.4}}616.2.4 Advance Warning Area (MUTCD Section 6B.04)

← Older revision		Revision as of 14:05, 26 November 2025
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	\|-		\|-
	! rowspan="2" \| Road Type		! rowspan="2" \| Road Type
	! colspan="3" \| Distance between Signs**		! colspan="3" \| Distance between Signs*
	\|-		\|-
	! A		! A
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	! C		! C
	\|-		\|-
	\| Urban (~~low speed~~)*		\| Urban (35 mph or less)
	\| ~~100~~ feet		\| 200 feet
	\| ~~100~~ feet		\| 200 feet
	\| ~~100~~ feet		\| 200 feet
	\|-		\|-
	\| Urban (~~high speed~~)*		\| Urban (40 mph or more)
	\| 350 feet		\| 350 feet
	\| 350 feet		\| 350 feet
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	\| 2,640 feet		\| 2,640 feet
	\|-		\|-
	\| style="background-color:#ffffff;" colspan="4"\| <div style="text-indent: -1.2em; padding-left: 1em;"><p><span style="font-family: monospace"> ~~</span> Speed category to be determined by the highway agency or owner of site roadways open to public travel.</p><p><span style="font-family: monospace">~~*</span> The column headings A, B, C are the dimensions shown in MUTCD Figures 6P-1 through 6P-54. The A dimension is the distance from the transition or point of restriction to the first sign. The B dimension is the distance between the first and second signs. The C dimension is the distance between the second and third signs. (The "first sign" is the sign in a three-sign series that is closest to the TC zone. The "third sign" is the sign that is furthest upstream from the TTC zone.)</p></div>		\| style="background-color:#ffffff;" colspan="4"\| <div style="text-indent: -1.2em; padding-left: 1em;"><p><span style="font-family: monospace"> *</span> The column headings A, B, C are the dimensions shown in MUTCD Figures 6P-1 through 6P-54. The A dimension is the distance from the transition or point of restriction to the first sign. The B dimension is the distance between the first and second signs. The C dimension is the distance between the second and third signs. (The "first sign" is the sign in a three-sign series that is closest to the TC zone. The "third sign" is the sign that is furthest upstream from the TTC zone.)</p></div>
	Note: See [[616.16 Typical Applications (MUTCD Chapter 6P)#tab616.16.3.3\|Table 616.16.3.3]] for MoDOT internal use		Note: See [[616.16 Typical Applications (MUTCD Chapter 6P)#tab616.16.3.3\|Table 616.16.3.3]] for MoDOT internal use
	\|}		\|}

WilkeJ: /* {{SpanID|616.2.6}}616.2.6 Activity Area (MUTCD Section 6B.06) */

2025-11-26T19:02:10Z

{{SpanID|616.2.6}}616.2.6 Activity Area (MUTCD Section 6B.06)

← Older revision		Revision as of 14:02, 26 November 2025
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	\|+ '''Table 616.2.6''' Stopping Sight Distance as a Function of Speed		\|+ '''Table 616.2.6''' Stopping Sight Distance as a Function of Speed
	\|-		\|-
	! Speed		! Speed*
	! Distance		! Distance
	\|-		\|-

WilkeJ: /* {{SpanID|616.2.6}}616.2.6 Activity Area (MUTCD Section 6B.06) */

2025-11-26T19:00:18Z

{{SpanID|616.2.6}}616.2.6 Activity Area (MUTCD Section 6B.06)

← Older revision		Revision as of 14:00, 26 November 2025
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	{\| class="wikitable"		{\| class="wikitable"
	\|-		\|-
	\|+ '''Table 616.2.6''' Stopping ~~Sign~~ Distance as a Function of Speed		\|+ '''Table 616.2.6''' Stopping Sight Distance as a Function of Speed
	\|-		\|-
	! Speed		! Speed

RollerA: /* 616.2.8.5 One-Lane Two-Way Tapers */

2025-11-25T19:22:50Z

616.2.8.5 One-Lane Two-Way Tapers

← Older revision		Revision as of 14:22, 25 November 2025
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	{{SpanID\|fig616.2.8}}		{{SpanID\|fig616.2.8}}
	[[File:~~F06B-03_ExampleofaOne~~-Lane,Two-~~WayTrafficTaper~~.png\|thumb\|center\|800px\|alt=A work space is shown in one lane of a curved two-lane roadway with one lane of traffic in each direction. Starting near the bottom of the figure, in the lane containing the taper, the section of roadway furthest from the work space is labeled “One-Lane, Two-Way Traffic Taper 50 to 100 ft.” Continuing upward, the section of roadway preceding the workspace is curved and labeled “Buffer Space (longitudinal) is used to position the taper in advance of the curve.” Above this buffer space, the work space is shown followed by another section of roadway labeled “Buffer Space (longitudinal).” Continuing upward, the section of roadway beyond the second buffer space is labeled “Downstream Taper 50 to 100 ft.” Channelizing devices redirect traffic around the work space and into the opposite-direction travel lane. A double-headed black arrow is shown in that lane, denoting two-way traffic in that lane. Signs and flaggers are positioned near the top and bottom of the two-lane roadway in advance of the taper at each end of the roadway.		[[File:Figure 616.2.8 Example of a One-Lane, Two-Way Traffic Taper.png\|thumb\|center\|800px\|alt=A work space is shown in one lane of a curved two-lane roadway with one lane of traffic in each direction. Starting near the bottom of the figure, in the lane containing the taper, the section of roadway furthest from the work space is labeled “One-Lane, Two-Way Traffic Taper 50 to 100 ft.” Continuing upward, the section of roadway preceding the workspace is curved and labeled “Buffer Space (longitudinal) is used to position the taper in advance of the curve.” Above this buffer space, the work space is shown followed by another section of roadway labeled “Buffer Space (longitudinal).” Continuing upward, the section of roadway beyond the second buffer space is labeled “Downstream Taper 50 to 100 ft.” Channelizing devices redirect traffic around the work space and into the opposite-direction travel lane. A double-headed black arrow is shown in that lane, denoting two-way traffic in that lane. Signs and flaggers are positioned near the top and bottom of the two-lane roadway in advance of the taper at each end of the roadway.
	\|'''Figure 616.2.8''' Example of a One-Lane, Two-Way Traffic Taper]]		\|'''Figure 616.2.8''' Example of a One-Lane, Two-Way Traffic Taper]]

RollerA: /* {{SpanID|616.2.6}}616.2.6 Activity Area (MUTCD Section 6B.06) */

2025-11-25T19:21:21Z

{{SpanID|616.2.6}}616.2.6 Activity Area (MUTCD Section 6B.06)

← Older revision		Revision as of 14:21, 25 November 2025
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	{{SpanID\|fig616.2.6}}		{{SpanID\|fig616.2.6}}
	[[File:~~F06B-02_Types~~ of Tapers and Buffer Spaces~~-01_v2~~.png\|thumb\|center\|800px\|alt="On a divided highway showing two adjacent lanes traveling in the same direction, the four component parts of a temporary traffic control zone are diagrammed.		[[File:Figure 616.2.6 Types of Tapers and Buffer Spaces.png\|thumb\|center\|800px\|alt="On a divided highway showing two adjacent lanes traveling in the same direction, the four component parts of a temporary traffic control zone are diagrammed.
	At the bottom of the figure, the first component part of a temporary traffic control zone is labeled, “Advance Warning Area tells traffic what to expect ahead.” Within the advance warning area, sign locations are shown along the right and left sides of the road outside the shoulders. The upper portion of the advance warning area is shown as an area labeled ”Shoulder Taper.” Within this area, channelizing devices are shown running diagonally from the right shoulder to the right travel lane. Directly above the advance warning area, a transition area that moves traffic out of its normal path is shown. In this area, along the roadway, channelizing devices continue to run diagonally to close the right lane of traffic and then parallel to a solid white edge line. Directly above the transition area, an activity area where work takes place is shown. The activity area is shown divided into two successive spaces; the lower space, labeled the “Buffer Space (longitudinal),” provides protection for traffic and workers. Directly above the buffer space (longitudinal), a work space is set aside for workers, equipment, and material storage.” The workspace is shown in the right travel lane. Directly above the activity area, the termination area is shown. The termination area lets traffic resume normal operations and is divided into three successive spaces; the lower space is labeled “Buffer Space (longitudinal).” Within the buffer space (longitudinal), the channelizing devices and solid white edge line continue upward in parallel. Directly above the buffer space (longitudinal) in the middle of the termination area, a space labeled “Downstream Taper” is shown. Within the downstream taper, the channelizing devices and solid white edge line run diagonally back to the right shoulder of the travel lane. This is shown beyond the workspace. The solid white line continues running above the upper space of the termination area."		At the bottom of the figure, the first component part of a temporary traffic control zone is labeled, “Advance Warning Area tells traffic what to expect ahead.” Within the advance warning area, sign locations are shown along the right and left sides of the road outside the shoulders. The upper portion of the advance warning area is shown as an area labeled ”Shoulder Taper.” Within this area, channelizing devices are shown running diagonally from the right shoulder to the right travel lane. Directly above the advance warning area, a transition area that moves traffic out of its normal path is shown. In this area, along the roadway, channelizing devices continue to run diagonally to close the right lane of traffic and then parallel to a solid white edge line. Directly above the transition area, an activity area where work takes place is shown. The activity area is shown divided into two successive spaces; the lower space, labeled the “Buffer Space (longitudinal),” provides protection for traffic and workers. Directly above the buffer space (longitudinal), a work space is set aside for workers, equipment, and material storage.” The workspace is shown in the right travel lane. Directly above the activity area, the termination area is shown. The termination area lets traffic resume normal operations and is divided into three successive spaces; the lower space is labeled “Buffer Space (longitudinal).” Within the buffer space (longitudinal), the channelizing devices and solid white edge line continue upward in parallel. Directly above the buffer space (longitudinal) in the middle of the termination area, a space labeled “Downstream Taper” is shown. Within the downstream taper, the channelizing devices and solid white edge line run diagonally back to the right shoulder of the travel lane. This is shown beyond the workspace. The solid white line continues running above the upper space of the termination area."
	\|'''Figure 616.2.6''' Types of Tapers and Buffer Spaces]]		\|'''Figure 616.2.6''' Types of Tapers and Buffer Spaces]]

RollerA: /* {{SpanID|616.2.3}}616.2.3 Components of Temporary Traffic Control Zones (MUTCD Section 6B.03) */

2025-11-25T19:20:08Z

{{SpanID|616.2.3}}616.2.3 Components of Temporary Traffic Control Zones (MUTCD Section 6B.03)

← Older revision		Revision as of 14:20, 25 November 2025
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	{{SpanID\|fig616.2.3}}		{{SpanID\|fig616.2.3}}
	[[File:~~F06B-01_Component~~ Parts of a Temporary Traffic Control Zone.png\|thumb\|center\|800px\|alt="On a divided highway showing two adjacent lanes traveling in the same direction, the four component parts of a temporary traffic control zone are diagrammed.		[[File:Figure 616.2.3 Component Parts of a Temporary Traffic Control Zone.png\|thumb\|center\|800px\|alt="On a divided highway showing two adjacent lanes traveling in the same direction, the four component parts of a temporary traffic control zone are diagrammed.
	At the bottom of the figure, the first component part of a temporary traffic control zone is labeled, “Advance Warning Area tells traffic what to expect ahead.” Within the advance warning area, sign locations are shown along the right and left sides of the road outside the shoulders. The upper portion of the advance warning area is shown as an area labeled ”Shoulder Taper.” Within this area, channelizing devices are shown running diagonally from the right shoulder to the right travel lane. Directly above the advance warning area, a transition area that moves traffic out of its normal path is shown. In this area, along the roadway, channelizing devices continue to run diagonally to close the right lane of traffic and then parallel to a solid white edge line. Directly above the transition area, an activity area where work takes place is shown. The activity area is shown divided into two successive spaces; the lower space, labeled the “Buffer Space (longitudinal),” provides protection for traffic and workers. Directly above the buffer space (longitudinal), a work space is set aside for workers, equipment, and material storage.” The workspace is shown in the right travel lane. Directly above the activity area, the termination area is shown. The termination area lets traffic resume normal operations and is divided into three successive spaces; the lower space is labeled “Buffer Space (longitudinal).” Within the buffer space (longitudinal), the channelizing devices and solid white edge line continue in parallel. Directly above the buffer space (longitudinal) in the middle of the termination area, a space labeled “Downstream Taper” is shown. Within the downstream taper, the channelizing devices and solid white edge line run diagonally back to the right shoulder of the travel lane. This is shown beyond the workspace. The solid white line continues running above the upper space of the termination area."		At the bottom of the figure, the first component part of a temporary traffic control zone is labeled, “Advance Warning Area tells traffic what to expect ahead.” Within the advance warning area, sign locations are shown along the right and left sides of the road outside the shoulders. The upper portion of the advance warning area is shown as an area labeled ”Shoulder Taper.” Within this area, channelizing devices are shown running diagonally from the right shoulder to the right travel lane. Directly above the advance warning area, a transition area that moves traffic out of its normal path is shown. In this area, along the roadway, channelizing devices continue to run diagonally to close the right lane of traffic and then parallel to a solid white edge line. Directly above the transition area, an activity area where work takes place is shown. The activity area is shown divided into two successive spaces; the lower space, labeled the “Buffer Space (longitudinal),” provides protection for traffic and workers. Directly above the buffer space (longitudinal), a work space is set aside for workers, equipment, and material storage.” The workspace is shown in the right travel lane. Directly above the activity area, the termination area is shown. The termination area lets traffic resume normal operations and is divided into three successive spaces; the lower space is labeled “Buffer Space (longitudinal).” Within the buffer space (longitudinal), the channelizing devices and solid white edge line continue in parallel. Directly above the buffer space (longitudinal) in the middle of the termination area, a space labeled “Downstream Taper” is shown. Within the downstream taper, the channelizing devices and solid white edge line run diagonally back to the right shoulder of the travel lane. This is shown beyond the workspace. The solid white line continues running above the upper space of the termination area."
	\|'''Figure 616.2.3''' Component Parts of a Temporary Traffic Control Zone]]		\|'''Figure 616.2.3''' Component Parts of a Temporary Traffic Control Zone]]

HogsettC: /* {{SpanID|616.2.8}}616.2.8 Tapers (MUTCD Section 6B.08) */

2025-11-25T13:25:33Z

{{SpanID|616.2.8}}616.2.8 Tapers (MUTCD Section 6B.08)

← Older revision		Revision as of 08:25, 25 November 2025
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	{{SpanID\|fig616.2.8}}		{{SpanID\|fig616.2.8}}
	[[File:F06B-03_ExampleofaOne-Lane,Two-WayTrafficTaper.png\|thumb\|center\|800px\|alt=\|'''Figure 616.2.8''' Example of a One-Lane, Two-Way Traffic Taper]]		[[File:F06B-03_ExampleofaOne-Lane,Two-WayTrafficTaper.png\|thumb\|center\|800px\|alt=A work space is shown in one lane of a curved two-lane roadway with one lane of traffic in each direction. Starting near the bottom of the figure, in the lane containing the taper, the section of roadway furthest from the work space is labeled “One-Lane, Two-Way Traffic Taper 50 to 100 ft.” Continuing upward, the section of roadway preceding the workspace is curved and labeled “Buffer Space (longitudinal) is used to position the taper in advance of the curve.” Above this buffer space, the work space is shown followed by another section of roadway labeled “Buffer Space (longitudinal).” Continuing upward, the section of roadway beyond the second buffer space is labeled “Downstream Taper 50 to 100 ft.” Channelizing devices redirect traffic around the work space and into the opposite-direction travel lane. A double-headed black arrow is shown in that lane, denoting two-way traffic in that lane. Signs and flaggers are positioned near the top and bottom of the two-lane roadway in advance of the taper at each end of the roadway.
			\|'''Figure 616.2.8''' Example of a One-Lane, Two-Way Traffic Taper]]

	'''Guidance. '''Except as provided in the paragraph below, the minimum taper length for the closure of a two-way center turn lane should be ½ L. (See [[#tab616.2.8.1\|Tables 616.2.8.1]] and [[#tab616.2.8.2\|616.2.8.2]]).		'''Guidance. '''Except as provided in the paragraph below, the minimum taper length for the closure of a two-way center turn lane should be ½ L. (See [[#tab616.2.8.1\|Tables 616.2.8.1]] and [[#tab616.2.8.2\|616.2.8.2]]).

HogsettC: /* {{SpanID|616.2.6}}616.2.6 Activity Area (MUTCD Section 6B.06) */

2025-11-25T13:24:08Z

{{SpanID|616.2.6}}616.2.6 Activity Area (MUTCD Section 6B.06)

← Older revision		Revision as of 08:24, 25 November 2025
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	{{SpanID\|fig616.2.6}}		{{SpanID\|fig616.2.6}}
	[[File:F06B-02_Types of Tapers and Buffer Spaces-01_v2.png\|thumb\|center\|800px\|alt=\|'''Figure 616.2.6''' Types of Tapers and Buffer Spaces]]		[[File:F06B-02_Types of Tapers and Buffer Spaces-01_v2.png\|thumb\|center\|800px\|alt="On a divided highway showing two adjacent lanes traveling in the same direction, the four component parts of a temporary traffic control zone are diagrammed.
			At the bottom of the figure, the first component part of a temporary traffic control zone is labeled, “Advance Warning Area tells traffic what to expect ahead.” Within the advance warning area, sign locations are shown along the right and left sides of the road outside the shoulders. The upper portion of the advance warning area is shown as an area labeled ”Shoulder Taper.” Within this area, channelizing devices are shown running diagonally from the right shoulder to the right travel lane. Directly above the advance warning area, a transition area that moves traffic out of its normal path is shown. In this area, along the roadway, channelizing devices continue to run diagonally to close the right lane of traffic and then parallel to a solid white edge line. Directly above the transition area, an activity area where work takes place is shown. The activity area is shown divided into two successive spaces; the lower space, labeled the “Buffer Space (longitudinal),” provides protection for traffic and workers. Directly above the buffer space (longitudinal), a work space is set aside for workers, equipment, and material storage.” The workspace is shown in the right travel lane. Directly above the activity area, the termination area is shown. The termination area lets traffic resume normal operations and is divided into three successive spaces; the lower space is labeled “Buffer Space (longitudinal).” Within the buffer space (longitudinal), the channelizing devices and solid white edge line continue upward in parallel. Directly above the buffer space (longitudinal) in the middle of the termination area, a space labeled “Downstream Taper” is shown. Within the downstream taper, the channelizing devices and solid white edge line run diagonally back to the right shoulder of the travel lane. This is shown beyond the workspace. The solid white line continues running above the upper space of the termination area."
			\|'''Figure 616.2.6''' Types of Tapers and Buffer Spaces]]

	=={{SpanID\|616.2.7}}616.2.7 Termination Area (MUTCD Section 6B.07) ==		=={{SpanID\|616.2.7}}616.2.7 Termination Area (MUTCD Section 6B.07) ==

HogsettC: /* {{SpanID|616.2.3}}616.2.3 Components of Temporary Traffic Control Zones (MUTCD Section 6B.03) */

2025-11-25T13:19:42Z

{{SpanID|616.2.3}}616.2.3 Components of Temporary Traffic Control Zones (MUTCD Section 6B.03)

← Older revision		Revision as of 08:19, 25 November 2025
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	{{SpanID\|fig616.2.3}}		{{SpanID\|fig616.2.3}}
	[[File:F06B-01_Component Parts of a Temporary Traffic Control Zone.png\|thumb\|center\|800px\|alt=\|'''Figure 616.2.3''' Component Parts of a Temporary Traffic Control Zone]]		[[File:F06B-01_Component Parts of a Temporary Traffic Control Zone.png\|thumb\|center\|800px\|alt="On a divided highway showing two adjacent lanes traveling in the same direction, the four component parts of a temporary traffic control zone are diagrammed.
			At the bottom of the figure, the first component part of a temporary traffic control zone is labeled, “Advance Warning Area tells traffic what to expect ahead.” Within the advance warning area, sign locations are shown along the right and left sides of the road outside the shoulders. The upper portion of the advance warning area is shown as an area labeled ”Shoulder Taper.” Within this area, channelizing devices are shown running diagonally from the right shoulder to the right travel lane. Directly above the advance warning area, a transition area that moves traffic out of its normal path is shown. In this area, along the roadway, channelizing devices continue to run diagonally to close the right lane of traffic and then parallel to a solid white edge line. Directly above the transition area, an activity area where work takes place is shown. The activity area is shown divided into two successive spaces; the lower space, labeled the “Buffer Space (longitudinal),” provides protection for traffic and workers. Directly above the buffer space (longitudinal), a work space is set aside for workers, equipment, and material storage.” The workspace is shown in the right travel lane. Directly above the activity area, the termination area is shown. The termination area lets traffic resume normal operations and is divided into three successive spaces; the lower space is labeled “Buffer Space (longitudinal).” Within the buffer space (longitudinal), the channelizing devices and solid white edge line continue in parallel. Directly above the buffer space (longitudinal) in the middle of the termination area, a space labeled “Downstream Taper” is shown. Within the downstream taper, the channelizing devices and solid white edge line run diagonally back to the right shoulder of the travel lane. This is shown beyond the workspace. The solid white line continues running above the upper space of the termination area."
			\|'''Figure 616.2.3''' Component Parts of a Temporary Traffic Control Zone]]

	=={{SpanID\|616.2.4}}616.2.4 Advance Warning Area (MUTCD Section 6B.04)==		=={{SpanID\|616.2.4}}616.2.4 Advance Warning Area (MUTCD Section 6B.04)==

← Older revision		Revision as of 08:25, 25 November 2025
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	{{SpanID\|fig616.2.8}}		{{SpanID\|fig616.2.8}}
	[[File:F06B-03_ExampleofaOne-Lane,Two-WayTrafficTaper.png\|thumb\|center\|800px\|alt=\|'''Figure 616.2.8''' Example of a One-Lane, Two-Way Traffic Taper]]		[[File:F06B-03_ExampleofaOne-Lane,Two-WayTrafficTaper.png\|thumb\|center\|800px\|alt=A work space is shown in one lane of a curved two-lane roadway with one lane of traffic in each direction. Starting near the bottom of the figure, in the lane containing the taper, the section of roadway furthest from the work space is labeled “One-Lane, Two-Way Traffic Taper 50 to 100 ft.” Continuing upward, the section of roadway preceding the workspace is curved and labeled “Buffer Space (longitudinal) is used to position the taper in advance of the curve.” Above this buffer space, the work space is shown followed by another section of roadway labeled “Buffer Space (longitudinal).” Continuing upward, the section of roadway beyond the second buffer space is labeled “Downstream Taper 50 to 100 ft.” Channelizing devices redirect traffic around the work space and into the opposite-direction travel lane. A double-headed black arrow is shown in that lane, denoting two-way traffic in that lane. Signs and flaggers are positioned near the top and bottom of the two-lane roadway in advance of the taper at each end of the roadway.
			\|'''Figure 616.2.8''' Example of a One-Lane, Two-Way Traffic Taper]]

	'''Guidance. '''Except as provided in the paragraph below, the minimum taper length for the closure of a two-way center turn lane should be ½ L. (See [[#tab616.2.8.1\|Tables 616.2.8.1]] and [[#tab616.2.8.2\|616.2.8.2]]).		'''Guidance. '''Except as provided in the paragraph below, the minimum taper length for the closure of a two-way center turn lane should be ½ L. (See [[#tab616.2.8.1\|Tables 616.2.8.1]] and [[#tab616.2.8.2\|616.2.8.2]]).