616.27 Traffic Control for Field Operations - Revision history

TaracksA at 17:20, 21 November 2025

2025-11-21T17:20:39Z

← Older revision		Revision as of 12:20, 21 November 2025
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	[[Category:616 Temporary Traffic Control]]		[[Category:616 Temporary Traffic Control (MUTCD Part 6)\|616.27]]

TaracksA: TaracksA moved page 616.23 Traffic Control for Field Operations to 616.27 Traffic Control for Field Operations

2025-11-05T20:30:02Z

TaracksA moved page 616.23 Traffic Control for Field Operations to 616.27 Traffic Control for Field Operations

← Older revision	Revision as of 15:30, 5 November 2025
(No difference)

TaracksA at 20:29, 5 November 2025

2025-11-05T20:29:47Z

Show changes

Hoskir: /* 616.23.2.5.11 Protective Vehicles */ updated per RR3849

2024-05-03T12:49:52Z

616.23.2.5.11 Protective Vehicles: updated per RR3849

← Older revision		Revision as of 07:49, 3 May 2024
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	====616.23.2.5.11 [[:Category:612 Impact Attenuators\|Protective Vehicles]]====		====616.23.2.5.11 [[:Category:612 Impact Attenuators\|Protective Vehicles]]====

	Protective vehicles are used to safeguard the workspace from errant vehicles. In some operations, these devices also serve as platforms for signs and other devices used to warn traffic of upcoming conditions or inform them of needed actions. For increased motorist, driver and worker safety, the protective vehicle may be equipped with a [[:Category:~~612 Impact Attenuators~~ # 612.~~1.1 Truck~~-~~Mounted Attenuators~~\|truck-mounted attenuator]]. ~~(See [[:Category:612 Impact Attenuators#612~~.1 Protective ~~Vehicles (MUTCD "Shadow~~ Vehicle~~")\|EPG 612~~.~~1 Protective Vehicles]]~~ for ~~additional guidance)~~.		Protective vehicles are used to safeguard the workspace from errant vehicles. In some operations, these devices also serve as platforms for signs and other devices used to warn traffic of upcoming conditions or inform them of needed actions. For increased motorist, driver and worker safety, the protective vehicle may be equipped with a [[:Category:612_Impact_Attenuators#612.1_Truck-Mounted_Attenuators\|truck-mounted attenuator]].

			MoDOT Protective Vehicles can be any MoDOT fleet vehicle appropriate for the operation.

			Positioning of the protective vehicle within the work zone is critical to its effectiveness. The operator will refer to the appropriate typical application for guidance and placement of the protective vehicle.

			=====616.23.2.5.11.1 Equipment/Materials Stored in Bed of Protective Vehicle Guidelines=====
			Protective vehicles may carry loads or cargo, such as sign posts or tools, in the bed of the protective vehicle. When the protective vehicle is being deployed for protection or has the possibility of deployment prior to getting to the work space, loads or cargo shall be properly secured. Loads or cargo are not allowed to be carried on TMAs.

	====616.23.2.5.12 [[:Category:612 Impact Attenuators#612.1.1 Truck-Mounted Attenuators\|Truck-Mounted Attenuators]]====		====616.23.2.5.12 [[:Category:612 Impact Attenuators#612.1.1 Truck-Mounted Attenuators\|Truck-Mounted Attenuators]]====

Legged1: /* 616.23.2.5.7 Pavement Markings */ terminology

2024-03-06T21:57:34Z

616.23.2.5.7 Pavement Markings: terminology

← Older revision		Revision as of 16:57, 6 March 2024
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	:* Those performing the operation shall be responsible for coordinating the procurement, installation, maintenance and removal, as applicable, of pavement markings, temporary or permanent, and any NO CENTER LINE signs.		:* Those performing the operation shall be responsible for coordinating the procurement, installation, maintenance and removal, as applicable, of pavement markings, temporary or permanent, and any NO CENTER LINE signs.

	:* Temporary pavement markings and any NO CENTER LINE signs shall be in place prior to opening a roadway to traffic. On two-lane highways with AADTs less than 1000, certain material and operations do not allow the practical application of these markings (e.g., ~~chip~~ seal, cold mix curing, fly coating, etc.), installation of temporary pavement markings may be delayed up to 5 working days, initiated by the obliteration or elimination of the permanent pavement markings, provided the required NO CENTER LINE signs are in place as prescribed previously prior to opening the facility to traffic.		:* Temporary pavement markings and any NO CENTER LINE signs shall be in place prior to opening a roadway to traffic. On two-lane highways with AADTs less than 1000, certain material and operations do not allow the practical application of these markings (e.g., seal coat, cold mix curing, fly coating, etc.), installation of temporary pavement markings may be delayed up to 5 working days, initiated by the obliteration or elimination of the permanent pavement markings, provided the required NO CENTER LINE signs are in place as prescribed previously prior to opening the facility to traffic.

	:* Temporary centerline and lane line pavement markings and any NO CENTER LINE signs shall be in accordance with [https://www.modot.org/media/16897 Standard Plan 620.10].		:* Temporary centerline and lane line pavement markings and any NO CENTER LINE signs shall be in accordance with [https://www.modot.org/media/16897 Standard Plan 620.10].

Hoskir: /* 616.23.2.6.1 Duration of Work */ updated per RR3802

2023-11-13T19:24:55Z

616.23.2.6.1 Duration of Work: updated per RR3802

← Older revision		Revision as of 14:24, 13 November 2023
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	''' Long-term stationary operations''' include planned work occupying a location more than three days.		''' Long-term stationary operations''' include planned work occupying a location more than three days.

	'''Intermediate term stationary operations''' include planned daytime work occupying a location from more than one daylight period up to three days or planned nighttime work occupying a location more than 30 minutes.		'''Intermediate term stationary operations''' include planned daytime work occupying a location from more than one daylight period up to three days or planned nighttime work occupying a location more than 60 minutes.

	'''Short-term stationary operations''' include planned daytime work occupying a location for more than 30 minutes, but less than twelve hours. This category describes the majority of work zone activities undertaken on the state highway system.		'''Short-term stationary operations''' include planned daytime work occupying a location for more than 60 minutes, but less than twelve hours. This category describes the majority of work zone activities undertaken on the state highway system.

	'''Short duration operations''' include planned daytime or nighttime work occupying a location up to 30 minutes.		'''Short duration operations''' include planned daytime or nighttime work occupying a location up to 60 minutes.

	'''Mobile operations''' include planned work that moves intermittently or continuously.		'''Mobile operations''' include planned work that moves intermittently or continuously.

Hoskir: /* 616.23.1 Definitions */ updated per RR3802

2023-11-13T19:23:32Z

616.23.1 Definitions: updated per RR3802

← Older revision		Revision as of 14:23, 13 November 2023
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	'''Incident Area''' - Temporary traffic control zone where temporary traffic control devices are deployed in response to a traffic incident, natural disaster, special event, etc.		'''Incident Area''' - Temporary traffic control zone where temporary traffic control devices are deployed in response to a traffic incident, natural disaster, special event, etc.

	'''Intermediate-Term Stationary Operation''' - Daytime work occupying a location from more than one daylight period up to 3 days or nighttime work occupying a location more than 30 minutes.		'''Intermediate-Term Stationary Operation''' - Daytime work occupying a location from more than one daylight period up to 3 days or nighttime work occupying a location more than 60 minutes.

	'''Lane Taper''' - Temporary traffic control measure used to merge or shift traffic either left or right out of a closed lane.		'''Lane Taper''' - Temporary traffic control measure used to merge or shift traffic either left or right out of a closed lane.
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	'''Shall''' - Indicates a required, mandatory, or specifically prohibitive practice. Shall statements are not to be modified or compromised based on engineering judgement or engineering study.		'''Shall''' - Indicates a required, mandatory, or specifically prohibitive practice. Shall statements are not to be modified or compromised based on engineering judgement or engineering study.

	'''Short Duration Operation''' - Daytime or nighttime work occupying a location up to 30 minutes.		'''Short Duration Operation''' - Daytime or nighttime work occupying a location up to 60 minutes.

	'''Short-Term Stationary Operation''' - Daytime work occupying a location more than 30 minutes, but less than 12 hours.		'''Short-Term Stationary Operation''' - Daytime work occupying a location more than 60 minutes, but less than 12 hours.

	'''Should''' - Indicates a recommended, but not mandatory, practice in typical situations. Deviations are allowed if engineering judgement or engineering study indicates the deviation to be appropriate.		'''Should''' - Indicates a recommended, but not mandatory, practice in typical situations. Deviations are allowed if engineering judgement or engineering study indicates the deviation to be appropriate.

Hoskir: /* 616.23.2.5.7 Pavement Markings */ fixed punctuation

2023-10-24T13:53:46Z

616.23.2.5.7 Pavement Markings: fixed punctuation

← Older revision		Revision as of 08:53, 24 October 2023
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	'''Pavement marking paint''' consists of applying a 4-in. wide strip of acrylic waterborne paint with drop-on glass beads for retroreflectivity. The paint, available in white and yellow, may be used to provide a surrogate permanent pavement marking or it may be applied in 4-ft. long sections at 40-ft. intervals as a temporary pavement marking. The length and spacing of the latter pavement marking may be reduced to one-half when marking intersections, ramp gores and other transition areas. This material is typically used to temporarily mark changes in normal roadway use and to provide temporary marking of centerlines and lane lines when permanent pavement markings are obliterated.		'''Pavement marking paint''' consists of applying a 4-in. wide strip of acrylic waterborne paint with drop-on glass beads for retroreflectivity. The paint, available in white and yellow, may be used to provide a surrogate permanent pavement marking or it may be applied in 4-ft. long sections at 40-ft. intervals as a temporary pavement marking. The length and spacing of the latter pavement marking may be reduced to one-half when marking intersections, ramp gores and other transition areas. This material is typically used to temporarily mark changes in normal roadway use and to provide temporary marking of centerlines and lane lines when permanent pavement markings are obliterated.

	In addition to providing temporary pavement markings, [http://epg.modot.mo.gov/index.php?title=616.6_Temporary_Traffic_Control_Zone_Devices_(MUTCD_6F)#616.6.47_NO_CENTER_LINE_Sign_.28WO8-12.29_.28MUTCD_6F.47.29 NO CENTER LINE] signs may also be ~~neededNO~~ CENTER LINE signs are black-on-orange warning signs used on two-lane and two-lane with auxiliary lane facilities where centerline marking is not in place for 200 linear ft. or more. These signs are placed in advance of the missing centerline markings area at the recommended sign spacing. For extended areas continuously or intermittently missing centerline marking, NO CENTER LINE signs should also be installed within 150 ft. after the intersection of a state route and at two-mile spacing throughout the affected area. Upon the discretion of the supervisor, additional NO CENTER LINE signs may be installed within 150 ft. after other intersections. When a sign placed at the two-mile interval and one placed after an intersection fall within one-eighth mile of each other, the sign placed at the two-mile interval may be eliminated.		In addition to providing temporary pavement markings, [http://epg.modot.mo.gov/index.php?title=616.6_Temporary_Traffic_Control_Zone_Devices_(MUTCD_6F)#616.6.47_NO_CENTER_LINE_Sign_.28WO8-12.29_.28MUTCD_6F.47.29 NO CENTER LINE] signs may also be needed. NO CENTER LINE signs are black-on-orange warning signs used on two-lane and two-lane with auxiliary lane facilities where centerline marking is not in place for 200 linear ft. or more. These signs are placed in advance of the missing centerline markings area at the recommended sign spacing. For extended areas continuously or intermittently missing centerline marking, NO CENTER LINE signs should also be installed within 150 ft. after the intersection of a state route and at two-mile spacing throughout the affected area. Upon the discretion of the supervisor, additional NO CENTER LINE signs may be installed within 150 ft. after other intersections. When a sign placed at the two-mile interval and one placed after an intersection fall within one-eighth mile of each other, the sign placed at the two-mile interval may be eliminated.

	When temporary pavement markings and/or NO CENTER LINE signs are necessitated by either a change in roadway use or the absence of permanent pavement markings, the following provisions shall be incorporated into the operation.		When temporary pavement markings and/or NO CENTER LINE signs are necessitated by either a change in roadway use or the absence of permanent pavement markings, the following provisions shall be incorporated into the operation.

Hoskir: /* 616.23.2.5.7 Pavement Markings */ updated per RR3793

2023-10-24T12:54:15Z

616.23.2.5.7 Pavement Markings: updated per RR3793

Hoskir: /* 616.23.2.5.7 Pavement Markings */ changed pavement marking link from https to http

2023-04-17T17:35:41Z

616.23.2.5.7 Pavement Markings: changed pavement marking link from https to http

← Older revision		Revision as of 12:35, 17 April 2023
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	'''Pavement marking paint''' consists of applying a 4-in. wide strip of acrylic waterborne paint with drop-on glass beads for retroreflectivity. The paint, available in white and yellow, may be used to provide a surrogate permanent pavement marking or it may be applied in 4-ft. long sections at 40-ft. intervals as a temporary pavement marking. The length and spacing of the latter pavement marking may be reduced to one-half when marking intersections, ramp gores and other transition areas. This material is typically used to temporarily mark changes in normal roadway use and to provide temporary marking of centerlines and lane lines when permanent pavement markings are obliterated.		'''Pavement marking paint''' consists of applying a 4-in. wide strip of acrylic waterborne paint with drop-on glass beads for retroreflectivity. The paint, available in white and yellow, may be used to provide a surrogate permanent pavement marking or it may be applied in 4-ft. long sections at 40-ft. intervals as a temporary pavement marking. The length and spacing of the latter pavement marking may be reduced to one-half when marking intersections, ramp gores and other transition areas. This material is typically used to temporarily mark changes in normal roadway use and to provide temporary marking of centerlines and lane lines when permanent pavement markings are obliterated.
	<div id="In addition to providing temporary"></div>		<div id="In addition to providing temporary"></div>
	In addition to providing temporary pavement markings, [~~https~~://epg.modot.mo.gov/index.php?title=616.6_Temporary_Traffic_Control_Zone_Devices_(MUTCD_6F)#616.6.47_NO_CENTER_LINE_Sign_.28WO8-12.29_.28MUTCD_6F.47.29 NO CENTER LINE] signs may also be needed. NO CENTER LINE signs are black-on-orange warning signs used on two-lane and two-lane with auxiliary lane facilities where centerline marking is not in place for 200 linear ft. or more. These signs are placed in advance of the missing centerline markings area at the recommended sign spacing. For extended areas continuously or intermittently missing centerline marking, NO CENTER LINE signs should also be installed within 150 ft. after the intersection of a state route and at two-mile spacing throughout the affected area. Upon the discretion of the supervisor, additional NO CENTER LINE signs may be installed within 150 ft. after other intersections. When a sign placed at the two-mile interval and one placed after an intersection fall within one-eighth mile of each other, the sign placed at the two-mile interval may be eliminated.		In addition to providing temporary pavement markings, [http://epg.modot.mo.gov/index.php?title=616.6_Temporary_Traffic_Control_Zone_Devices_(MUTCD_6F)#616.6.47_NO_CENTER_LINE_Sign_.28WO8-12.29_.28MUTCD_6F.47.29 NO CENTER LINE] signs may also be needed. NO CENTER LINE signs are black-on-orange warning signs used on two-lane and two-lane with auxiliary lane facilities where centerline marking is not in place for 200 linear ft. or more. These signs are placed in advance of the missing centerline markings area at the recommended sign spacing. For extended areas continuously or intermittently missing centerline marking, NO CENTER LINE signs should also be installed within 150 ft. after the intersection of a state route and at two-mile spacing throughout the affected area. Upon the discretion of the supervisor, additional NO CENTER LINE signs may be installed within 150 ft. after other intersections. When a sign placed at the two-mile interval and one placed after an intersection fall within one-eighth mile of each other, the sign placed at the two-mile interval may be eliminated.

	When temporary pavement markings and/or NO CENTER LINE signs are necessitated by either a change in roadway use or the absence of permanent pavement markings, the following provisions shall be incorporated into the operation.		When temporary pavement markings and/or NO CENTER LINE signs are necessitated by either a change in roadway use or the absence of permanent pavement markings, the following provisions shall be incorporated into the operation.

← Older revision		Revision as of 07:54, 24 October 2023
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	====616.23.2.5.7 [[620.1 General (MUTCD Chapter 3A)#620.1.8 Temporary Pavement Markings\|Pavement Markings]]====		====616.23.2.5.7 [[620.1 General (MUTCD Chapter 3A)#620.1.8 Temporary Pavement Markings\|Pavement Markings]]====

	Pavement markings such as broken lane lines ("skips"), lane lines and edgelines are the primary means of channelizing and providing guidance to traffic. However, when temporary traffic control activities impact the use of a roadway or when operations eliminate or obliterate permanent pavement markings, existing pavement markings, or lack thereof, can confuse the motorist.		Pavement markings such as broken lane lines ("skips"), lane lines and edgelines are the primary means of channelizing and providing guidance to traffic. However, when temporary traffic control activities impact the use of a roadway or when operations eliminate or obliterate permanent pavement markings, existing pavement markings, or lack thereof, can confuse the motorist.

	'''Changes in roadway use''' caused by long-term operations should be accompanied by pavement marking revisions (i.e., the removal or obliteration of any pavement markings that are not applicable to current roadway use and the installation of temporary pavement markings). For operations of shorter duration, the other temporary traffic control devices (e.g. channelizers, signs, etc.) deployed will be relied on to provide traffic with the needed channelization and guidance cues. Pavement marking revisions for shorter duration operations may be a possibility but should be considered on a case-by-case basis.		'''Changes in roadway use''' caused by long-term operations should be accompanied by pavement marking revisions (i.e., the removal or obliteration of any pavement markings that are not applicable to current roadway use and the installation of temporary pavement markings). For operations of shorter duration, the other temporary traffic control devices (e.g. channelizers, signs, etc.) deployed will be relied on to provide traffic with the needed channelization and guidance cues. Pavement marking revisions for shorter duration operations may be a possibility but should be considered on a case-by-case basis.

	'''Elimination or obliteration of permanent pavement markings''' for a distance of 200 linear ft. or more caused by operations such as leveling course, patching, seal coat, spot sealing, crack pouring, milling and scrub sealing shall be accompanied by the installation of temporary pavement markings.		'''Elimination or obliteration of permanent pavement markings''' for a distance of 200 linear ft. or more caused by operations such as leveling course, patching, seal coat, spot sealing, crack pouring, milling and scrub sealing shall be accompanied by the installation of temporary pavement markings.

	There are ~~four~~ means typically used to provide temporary pavement marking: preformed short-term pavement marking tape, ~~Type 1 temporary raised pavement markers, Type 2 temporary~~ raised pavement markers and pavement marking paint.		There are three means typically used to provide temporary pavement marking: preformed short-term pavement marking tape, Temporary raised pavement markers and pavement marking paint.

	'''Preformed short-term pavement marking tape''' consists of a 4-in. wide retroreflectorized tape with a pressure-sensitive adhesive on the back. The tape, available in white and yellow, may be used to provide a surrogate permanent pavement marking or it may be cut into 4-ft. long sections and applied to the road surface at 40-ft. intervals as a temporary pavement marking. The length and spacing of the latter pavement marking may be reduced to one-half when marking intersections, ramp gores and other transitional areas. This material is typically used to temporarily mark changes in normal roadway use and to provide temporary marking of centerlines and lane lines. It is not recommended for locations where the materials will be subjected to heavy traffic, in areas of heavy turning movements, on short radius curves, or on roadways having loose aggregate on the surface, since the material will not adhere well under these conditions.		'''Preformed short-term pavement marking tape''' consists of a 4-in. wide retroreflectorized tape with a pressure-sensitive adhesive on the back. The tape, available in white and yellow, may be used to provide a surrogate permanent pavement marking or it may be cut into 4-ft. long sections and applied to the road surface at 40-ft. intervals as a temporary pavement marking. The length and spacing of the latter pavement marking may be reduced to one-half when marking intersections, ramp gores and other transitional areas. This material is typically used to temporarily mark changes in normal roadway use and to provide temporary marking of centerlines and lane lines. It is not recommended for locations where the materials will be subjected to heavy traffic, in areas of heavy turning movements, on short radius curves, or on roadways having loose aggregate on the surface, since the material will not adhere well under these conditions.
	~~[[image:616.23.2.5.7.jpg\|right\|200px\|thumb\|<center>'''Type 1 Temporary Raised Pavement Marker'''</center>]]~~

	'''Type 1 temporary raised pavement markers''' consist of an L- or T-shaped flexible tab with a retroreflective sheeting on both faces of the vertical section and a pressure-sensitive adhesive on the base. These markers, available in white and yellow, are typically used to temporarily mark centerlines and lane lines by applying them to the road surface at 40-ft. intervals prior to or after (depending on the type of surface treatment) an operation and removing the protective film covering the retroreflective sheeting upon completion of the operation. This spacing may be reduced to one-half when marking intersections, ramp gores and other transitional areas. Type 1 markers are the preferred means of providing temporary marking on rough surfaces.		[[image:Raised_pavement_marker-01.png\|right\|300px\|thumb\|<center>'''Temporary Raised Pavement Marker'''</center>]]
	[[image:~~616.23.2.5.7 Type 2~~.~~jpg~~\|right\|~~200px~~\|thumb\|<center>'''~~Type 2~~ Temporary Raised Pavement Marker'''</center>]]

	''' ~~Type 2 temporary~~ raised pavement markers''' consist of a ~~plastic dome with reflectors~~ on the ~~sides~~ and a pressure-sensitive adhesive on the base. These markers, available in white and yellow, are typically used to temporarily mark ~~changes in normal roadway use~~ by applying them to the road surface at 40-ft. intervals. This spacing may be reduced to one-half when marking intersections, ramp gores and other ~~transition~~ areas. ~~Type 2 markers work well~~ on ~~concrete and smooth asphaltic~~ surfaces.		'''Temporary raised pavement markers''' consist of an L- or T-shaped flexible tab with a retroreflective sheeting on both faces of the vertical section and a pressure-sensitive adhesive on the base. These markers, available in white and yellow, are typically used to temporarily mark centerlines and lane lines by applying them to the road surface at 40-ft. intervals prior to or after (depending on the type of surface treatment) an operation and removing the protective film covering the retroreflective sheeting upon completion of the operation. This spacing may be reduced to one-half when marking intersections, ramp gores and other transitional areas. These are the preferred means of providing temporary marking on rough surfaces.

	'''Pavement marking paint''' consists of applying a 4-in. wide strip of acrylic waterborne paint with drop-on glass beads for retroreflectivity. The paint, available in white and yellow, may be used to provide a surrogate permanent pavement marking or it may be applied in 4-ft. long sections at 40-ft. intervals as a temporary pavement marking. The length and spacing of the latter pavement marking may be reduced to one-half when marking intersections, ramp gores and other transition areas. This material is typically used to temporarily mark changes in normal roadway use and to provide temporary marking of centerlines and lane lines when permanent pavement markings are obliterated.		'''Pavement marking paint''' consists of applying a 4-in. wide strip of acrylic waterborne paint with drop-on glass beads for retroreflectivity. The paint, available in white and yellow, may be used to provide a surrogate permanent pavement marking or it may be applied in 4-ft. long sections at 40-ft. intervals as a temporary pavement marking. The length and spacing of the latter pavement marking may be reduced to one-half when marking intersections, ramp gores and other transition areas. This material is typically used to temporarily mark changes in normal roadway use and to provide temporary marking of centerlines and lane lines when permanent pavement markings are obliterated.
	~~<div id="In addition to providing temporary"></div>~~
	In addition to providing temporary pavement markings, [http://epg.modot.mo.gov/index.php?title=616.6_Temporary_Traffic_Control_Zone_Devices_(MUTCD_6F)#616.6.47_NO_CENTER_LINE_Sign_.28WO8-12.29_.28MUTCD_6F.47.29 NO CENTER LINE] signs may also be ~~needed. NO~~ CENTER LINE signs are black-on-orange warning signs used on two-lane and two-lane with auxiliary lane facilities where centerline marking is not in place for 200 linear ft. or more. These signs are placed in advance of the missing centerline markings area at the recommended sign spacing. For extended areas continuously or intermittently missing centerline marking, NO CENTER LINE signs should also be installed within 150 ft. after the intersection of a state route and at two-mile spacing throughout the affected area. Upon the discretion of the supervisor, additional NO CENTER LINE signs may be installed within 150 ft. after other intersections. When a sign placed at the two-mile interval and one placed after an intersection fall within one-eighth mile of each other, the sign placed at the two-mile interval may be eliminated.		In addition to providing temporary pavement markings, [http://epg.modot.mo.gov/index.php?title=616.6_Temporary_Traffic_Control_Zone_Devices_(MUTCD_6F)#616.6.47_NO_CENTER_LINE_Sign_.28WO8-12.29_.28MUTCD_6F.47.29 NO CENTER LINE] signs may also be neededNO CENTER LINE signs are black-on-orange warning signs used on two-lane and two-lane with auxiliary lane facilities where centerline marking is not in place for 200 linear ft. or more. These signs are placed in advance of the missing centerline markings area at the recommended sign spacing. For extended areas continuously or intermittently missing centerline marking, NO CENTER LINE signs should also be installed within 150 ft. after the intersection of a state route and at two-mile spacing throughout the affected area. Upon the discretion of the supervisor, additional NO CENTER LINE signs may be installed within 150 ft. after other intersections. When a sign placed at the two-mile interval and one placed after an intersection fall within one-eighth mile of each other, the sign placed at the two-mile interval may be eliminated.

	When temporary pavement markings and/or NO CENTER LINE signs are necessitated by either a change in roadway use or the absence of permanent pavement markings, the following provisions shall be incorporated into the operation.		When temporary pavement markings and/or NO CENTER LINE signs are necessitated by either a change in roadway use or the absence of permanent pavement markings, the following provisions shall be incorporated into the operation.
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	:* Those performing the operation shall be responsible for coordinating the procurement, installation, maintenance and removal, as applicable, of pavement markings, temporary or permanent, and any NO CENTER LINE signs.		:* Those performing the operation shall be responsible for coordinating the procurement, installation, maintenance and removal, as applicable, of pavement markings, temporary or permanent, and any NO CENTER LINE signs.

	:* Temporary pavement markings and any NO CENTER LINE signs shall be in place prior to opening a roadway to traffic. On two-lane highways with AADTs less than 1000, certain material and operations do not allow the practical application of these markings (e.g., chip seal, cold mix curing, fly coating, etc.), installation of temporary pavement markings may be delayed up to 5 working days, initiated by the obliteration or elimination of the permanent pavement markings, provided the required NO CENTER LINE signs are in place as prescribed previously prior to opening the facility to traffic.		:* Temporary pavement markings and any NO CENTER LINE signs shall be in place prior to opening a roadway to traffic. On two-lane highways with AADTs less than 1000, certain material and operations do not allow the practical application of these markings (e.g., chip seal, cold mix curing, fly coating, etc.), installation of temporary pavement markings may be delayed up to 5 working days, initiated by the obliteration or elimination of the permanent pavement markings, provided the required NO CENTER LINE signs are in place as prescribed previously prior to opening the facility to traffic.

	:* Temporary centerline and lane line pavement markings and any NO CENTER LINE signs shall be in accordance with [https://www.modot.org/media/16897 Standard Plan 620.10].		:* Temporary centerline and lane line pavement markings and any NO CENTER LINE signs shall be in accordance with [https://www.modot.org/media/16897 Standard Plan 620.10].