Pavement Markings - Revision history

HolvenstotC1 at 13:49, 13 October 2021

2021-10-13T13:49:56Z

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HolvenstotC1 at 13:13, 13 October 2021

2021-10-13T13:13:42Z

HolvenstotC1 at 13:11, 13 October 2021

2021-10-13T13:11:41Z

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HolvenstotC1 at 13:04, 13 October 2021

2021-10-13T13:04:45Z

HolvenstotC1 at 13:03, 13 October 2021

2021-10-13T13:03:09Z

HolvenstotC1 at 12:57, 13 October 2021

2021-10-13T12:57:26Z

HolvenstotC1 at 12:55, 13 October 2021

2021-10-13T12:55:05Z

HolvenstotC1 at 12:48, 13 October 2021

2021-10-13T12:48:05Z

HolvenstotC1 at 12:37, 13 October 2021

2021-10-13T12:37:35Z

HolvenstotC1: /* Material Selection */

2020-05-19T17:28:22Z

Material Selection

← Older revision		Revision as of 13:13, 13 October 2021
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−	[[File:Material Classification.jpg\|400x600px\|thumb\|left\|Longitudinal Markings]] [[File:Special Markings.jpg\|400x600px\|~~framed~~\|right\|Special Markings]]	+	[[File:Material Classification.jpg\|400x600px\|thumb\|left\|Longitudinal Markings]] [[File:Special Markings.jpg\|400x600px\|thumb\|right\|Special Markings]]

	<br />		<br />

@@ Line 166: / Line 166: @@
 Location Criteria:
-â€¢	In advance of a location with an advisory speed, such as a severe horizontal or vertical curve or other roadway feature drivers must always decelerate in advance of, like a roundabout
+* In advance of a location with an advisory speed, such as a severe horizontal or vertical curve or other roadway feature drivers must always decelerate in advance of, like a roundabout
-â€¢	The desired reduction in speeds has not been achieved by the installation of warning signs and/or other traffic control devices
+* The desired reduction in speeds has not been achieved by the installation of warning signs and/or other traffic control devices
 Optical speed bars should not be used on long tangent sections of roadway or in areas frequented mainly by local or familiar drivers, (e.g., school zones).
 Installation Requirements:
-â€¢	Optical speed bars shall be white on both sides of the lane
+* Longitudinal pavement markings (center, edge, or lane lines) must be present on both sides of the lane
-â€¢	Longitudinal pavement markings (center, edge, or lane lines) must be present on both sides of the lane
+* Longitudinal spacing between optical speed bars reduces in the direction of travel
-â€¢	Longitudinal spacing between optical speed bars reduces in the direction of travel
+* Install with special marking materials (not waterborne or sprayable thermoplastic)
-â€¢	Install with special marking materials (not waterborne or sprayable thermoplastic)
+[[File:OpticalSpeedBarsTable.png|thumb|left|Spacing table for optical speed bar placement]]

@@ Line 130: / Line 130: @@
 The applications of special pavement markings are more varied than those for longitudinal pavement markings. Special markings can be used to guide, warn, or regulate both vehicular and pedestrian traffic. Some of the special markings used in Michigan and their appropriate uses are detailed below.
-[[File: Stop Bar Example in MMA.jpg|400px|framed|left|Stop Bar Example]]
+[[File: Stop Bar Example in MMA.jpg|400px|thumb|left|Stop Bar Example]]
 '''Stop Bar Markings''' indicate the point behind which vehicles are required to stop in compliance with a traffic control signal. They may also be used in conjunction with stop signs, but it is not MDOT standard to do so unless an intersection requires additional emphasis. Stop bars on MDOT trunkline are 24 inches in width, but many local agencies use 18-inch width on their roadways.

@@ Line 130: / Line 130: @@
 The applications of special pavement markings are more varied than those for longitudinal pavement markings. Special markings can be used to guide, warn, or regulate both vehicular and pedestrian traffic. Some of the special markings used in Michigan and their appropriate uses are detailed below.
-[[File: Stop Bar Example in MMA.jpg|400x400px|framed|left|Stop Bar Example]]
+[[File: Stop Bar Example in MMA.jpg|400px|framed|left|Stop Bar Example]]
 '''Stop Bar Markings''' indicate the point behind which vehicles are required to stop in compliance with a traffic control signal. They may also be used in conjunction with stop signs, but it is not MDOT standard to do so unless an intersection requires additional emphasis. Stop bars on MDOT trunkline are 24 inches in width, but many local agencies use 18-inch width on their roadways.

@@ Line 117: / Line 117: @@
 References/Resources:
-â€¢	ADA Compliance Brief: Restriping Parking Spaces
+* ADA Compliance Brief: Restriping Parking Spaces
-â€¢	ADA Design Guide: Restriping Parking Lots
+* ADA Design Guide: Restriping Parking Lots
 {{top}}
@@ Line 136: / Line 136: @@
-'''Yield Lines''' come in two designs and are used to indicate the point behind which vehicles are required to yield in compliance with a â€œYieldâ€ sign or a â€œYield Here to Pedestriansâ€ sign. While not frequently used in Michigan the lines comprised of triangles (also known as â€œshark teethâ€) are installed in advance of unsignalized midblock pedestrian crossings that span more than two lanes. The other type of yield line is present at the entry to the circular roadway of a roundabout and consists of 12-inch wide striping in a pattern of 3 feet of marking followed by 3 feet of gap.
+'''Yield Lines''' come in two designs and are used to indicate the point behind which vehicles are required to yield in compliance with a "Yield" sign or a "Yield Here to Pedestrians" sign. While not frequently used in Michigan the lines comprised of triangles (also known as "shark teeth") are installed in advance of unsignalized midblock pedestrian crossings that span more than two lanes. The other type of yield line is present at the entry to the circular roadway of a roundabout and consists of 12-inch wide striping in a pattern of 3 feet of marking followed by 3 feet of gap.
 [[File: Special Emphasis Crosswalk.jpg|200x200px|framed|right|Special Emphasis Crosswalk]]
@@ Line 149: / Line 149: @@
 Guide lines are special markings used at dual turn locations as well as offset intersections.  They may also be used as option edge line extensions across intersections. Markings should be dotted (2' mark/4' gap) or solid, and must be at least as wide as the line being extended.  The color placed should match the color of the line being extended.
-â€¢	Dotted turning guide lines must be cold plastic
+* Dotted turning guide lines must be cold plastic
-â€¢	Solid turning guide lines should be sprayable thermoplastic
+* Solid turning guide lines should be sprayable thermoplastic
-â€¢	Dotted thru guide lines may be cold plastic or sprayable thermoplastic
+* Dotted thru guide lines may be cold plastic or sprayable thermoplastic
-â€¢	Solid thru guide lines should be sprayable thermoplastic
+* Solid thru guide lines should be sprayable thermoplastic
 For additional guidance regarding guide lines, see [https://mdotjboss.state.mi.us/TSSD/getCategoryDocuments.htm?categoryPrjNumbers=1403856,1403857,1403858,1403859,1403860&category=Pavement%20Markings PAVE-907.]

@@ Line 9: / Line 9: @@
 '''Sinusoidal Rumble Strips'''
-Sinusoidal rumble strips, or "mumble strips", are a rolling sine wave pattern that is slightly recessed into the pavement surface. Sinusoidal rumble strips provide adequate sound and vibration to the driver but produce less exterior noise than traditional rumble strips. Different patterns are currently installed in Minnesota, Pennsylvania and California. MDOT installed and evaluated pilot projects in all Regions, and has now made sinusoidal rumble strips the standard for non-freeway shoulders. Sinusoidal rumble strips are an option for other installations provided the locations meet the criteria in Section 6.05.11 of the Road Design Manual.
+Sinusoidal rumble strips, or "mumble strips", are a rolling sine wave pattern that is slightly recessed into the pavement surface. Sinusoidal rumble strips provide adequate sound and vibration to the driver but produce less exterior noise than traditional rumble strips. Different patterns are currently installed in Minnesota, Pennsylvania and California. MDOT installed and evaluated pilot projects in all Regions, and has now made sinusoidal rumble strips the standard for non-freeway shoulders. Sinusoidal rumble strips are an option for other installations provided the locations meet the criteria in [https://mdotjboss.state.mi.us/stdplan/getStandardPlanDocument.htm?docGuid%3Dc727c7fe-355a-4e0c-818e-2ca4fd7b1643&usg=AOvVaw06d0JnR9xhILwrMhCPvMZ- Section 6.05.11 of the Road Design Manual.]
@@ Line 85: / Line 85: @@
 Longitudinal markings are line type markings that delineate travel lanes and are parallel to vehicle travel direction. They are various widths and can be solid or dashed at various lengths.  All lines on MDOT roads are retroreflective with the exception of off-street parking markings, such as for rest areas, roadside parks, and parking/carpool lots.
-'''Centerline''' pavement markings are yellow markings used to delineate the separation of traffic that is moving in opposite directions on an undivided roadway. MDOT uses 4-inch wide markings for centerlines, and the different patterns convey passing and no passing zones to the different directions of traffic. When placed over a centerline rumble strip the centerline markings become known as a rumble stripe and gain some wet-night reflectivity. Even with rumble strips present, centerline markings can be recessed for added durability.
+'''Centerline''' pavement markings are yellow markings used to delineate the separation of traffic that is moving in opposite directions on an undivided roadway. MDOT uses 4-inch wide markings for centerlines, increasing to 6-inch width statewide by 2025, and the different patterns convey passing and no passing zones to the different directions of traffic. When placed over a centerline rumble strip the centerline markings become known as a rumble stripe and gain some wet-night reflectivity. Even with rumble strips present, centerline markings can be recessed for added durability.
 '''Edgeline''' pavement markings delineate the right or left edge of a roadway and identify the extents of the pavement to be used for vehicular travel. On divided highways, one-way streets, and ramps, the left edgeline is to be yellow. The righthand edgeline should always be white. The edgelines should be 6-inch width on MDOT roadways, while many local agencies use 4-inch width.
-Lane Line pavement markings are white markings that delineate the separation of traffic moving in the same direction. Lane lines in a 4-inch width are located between adjacent lanes traveling in the same direction, while 6-inch lane lines are located between adjacent lanes traveling in the same direction, and also a thru lane and an exit or entrance lane. Lane lines can also be 12-inch width for drop and weave lanes, as shown in [https://mdotjboss.state.mi.us/TSSD/getCategoryDocuments.htm?categoryPrjNumbers=1403856,1403857,1403858,1403859,1403860&category=Pavement%20Markings PAVE-925] and [https://mdotjboss.state.mi.us/TSSD/getCategoryDocuments.htm?categoryPrjNumbers=1403856,1403857,1403858,1403859,1403860&category=Pavement%20Markings PAVE-940.]
+'''Lane Line''' pavement markings are white markings that delineate the separation of traffic moving in the same direction. 6-inch lane lines are located between adjacent lanes traveling in the same direction, and also a thru lane and an exit or entrance lane. Lane lines can also be 12-inch width for drop and weave lanes, as shown in [https://mdotjboss.state.mi.us/TSSD/getCategoryDocuments.htm?categoryPrjNumbers=1403856,1403857,1403858,1403859,1403860&category=Pavement%20Markings PAVE-925] and [https://mdotjboss.state.mi.us/TSSD/getCategoryDocuments.htm?categoryPrjNumbers=1403856,1403857,1403858,1403859,1403860&category=Pavement%20Markings PAVE-940.]
 Gore pavement markings are 12-inch wide white markings that define the neutral area between thru traffic and merging/diverging traffic, such as at a freeway ramp.
-Parking Area pavement markings are 4-inch wide markings that define parking stalls and buffers in a parking area, such as a rest area, carpool lot, or roadside park. Parking area markings are done with waterborne and are unique in that they do not require glass beads, and therefore are not retroreflective. MDOTâ€™s standards for parking area pavement markings are defined in [https://mdotjboss.state.mi.us/TSSD/getCategoryDocuments.htm?categoryPrjNumbers=1403856,1403857,1403858,1403859,1403860&category=Pavement%20Markings PAVE-956,] which includes a chart to determine how many accessible spaces are needed. When designing for accessible stalls, and for parking areas as a whole, it is important to note the following:
+Parking Area pavement markings are 4-inch wide markings that define parking stalls and buffers in a parking area, such as a rest area, carpool lot, or roadside park. Parking area markings are done with waterborne and are unique in that they do not require glass beads, and therefore are not retroreflective. MDOT's standards for parking area pavement markings are defined in [https://mdotjboss.state.mi.us/TSSD/getCategoryDocuments.htm?categoryPrjNumbers=1403856,1403857,1403858,1403859,1403860&category=Pavement%20Markings PAVE-956,] which includes a chart to determine how many accessible spaces are needed. When designing for accessible stalls, and for parking areas as a whole, it is important to note the following:
-â€¢	1 of every 6 accessible spaces must be a van accessible space, with a minimum of 1
+* 1 of every 6 accessible spaces must be a van accessible space, with a minimum of 1
-â€¢	Accessible stalls (car and van) should be 12 feet wide when measured to the center of the pavement marking lines
+* Accessible stalls (car and van) should be 12 feet wide when measured to the center of the pavement marking lines
-â€¢	If the accessible route (e.g. â€“ sidewalk) is located in front of the parking space, install wheel stops to keep vehicles from reducing the clear width of the accessible route below 36 inches
+* If the accessible route (e.g. â€“ sidewalk) is located in front of the parking space, install wheel stops to keep vehicles from reducing the clear width of the accessible route below 36 inches
-â€¢	All accessible stalls must have an adjacent access aisle (â€œbufferâ€ in our standard)
+* All accessible stalls must have an adjacent access aisle (â€œbufferâ€ in our standard)
-:â€¢	Two vehicles may share an access aisle located between them
+:* Two vehicles may share an access aisle located between them
+:
-:â€¢	Access aisles adjacent to accessible car stalls must be a minimum of 5 feet wide
+:* Access aisles adjacent to accessible car stalls must be a minimum of 5 feet wide
+:
-:â€¢	Access aisles adjacent to accessible van stalls must be a minimum of 8 feet wide
+:* Access aisles adjacent to accessible van stalls must be a minimum of 8 feet wide
+:
-:â€¢	Access aisles may be located on either side of the parking space except for angled van parking spaces, which must have access aisles located on the passenger side of the parking spaces
+:* Access aisles may be located on either side of the parking space except for angled van parking spaces, which must have access aisles located on the passenger side of the parking spaces
-â€¢	Pavement markings for accessible stalls shall be white
+* Pavement markings for accessible stalls shall be white
+:
-:â€¢	Blue may be used to supplement as shown in the standard, but cannot be used as a standalone color
+:* Blue may be used to supplement as shown in the standard, but cannot be used as a standalone color
 References/Resources:

@@ Line 9: / Line 9: @@
 '''Sinusoidal Rumble Strips'''
-Sinusoidal rumble strips, or â€œmumble stripsâ€ are a rolling sine wave pattern that is slightly recessed into the pavement surface. Sinusoidal rumble strips provide adequate sound and vibration to the driver but produce less exterior noise than traditional rumble strips. Different patterns are currently installed in Minnesota, Pennsylvania and California. MDOT is currently installing and evaluating pilot projects in all Regions.
+Sinusoidal rumble strips, or "mumble strips", are a rolling sine wave pattern that is slightly recessed into the pavement surface. Sinusoidal rumble strips provide adequate sound and vibration to the driver but produce less exterior noise than traditional rumble strips. Different patterns are currently installed in Minnesota, Pennsylvania and California. MDOT installed and evaluated pilot projects in all Regions, and has now made sinusoidal rumble strips the standard for non-freeway shoulders. Sinusoidal rumble strips are an option for other installations provided the locations meet the criteria in Section 6.05.11 of the Road Design Manual.
@@ Line 38: / Line 39: @@
 '''Wet Reflective Freeway Lane Lines'''
-In 2018 MDOT experimented with placing wet reflective optics in maintenance (1-year) materials on 2 freeway routes with the annual restriping projects. After observing improved wet night visibility on those routes application of wet reflective optics was expanded all lane lines on freeway routes, for both maintenance and construction placement. (include picture)
+In 2018 MDOT experimented with placing wet reflective optics in maintenance (1-year) materials on 2 freeway routes with the annual restriping projects. After observing improved wet night visibility on those routes application of wet reflective optics was expanded all lane lines on freeway routes, for both maintenance and construction placement.
@@ Line 44: / Line 45: @@
 Beginning with the 2020 annual restriping projects (2021 for construction projects), all freeway lane lines will be increased in width from 4" to 6".
 ==[[#'''Longitudinal Markings'''|'''Longitudinal Markings''']]==

@@ Line 416: / Line 416: @@
 ===[[#Material Selection|Material Selection]]===
-The guidance documents listed here contains flowcharts to assist with material selection for longitudinal lines and special pavement markings.{{top}}
+The guidance documents listed here contains flowcharts to assist with material selection for longitudinal lines and special pavement markings.
@@ Line 425: / Line 425: @@
 [[File:DurableMarkingsGuidance.jpg|400x600px|framed|left|Durable Markings]]
-[[File:File:MaintenanceMaterialsGuidance.jpg|400x600px|framed|right|Maintenance Markings]]
+[[File:MaintenanceMaterialsGuidance.jpg|400x600px|framed|right|Maintenance Markings]]
 * [http://mdotwiki.state.mi.us/design/index.php/File:Durable_Markings_Guidance.pdf Durable Markings markings]