903.5 Regulatory Signs - Revision history

Hoskir: /* 903.5.5.2 YIELD Sign Placement (MUTCD Section 2B.10) */ updated per RR3755

2023-12-06T13:31:58Z

903.5.5.2 YIELD Sign Placement (MUTCD Section 2B.10): updated per RR3755

← Older revision		Revision as of 08:31, 6 December 2023
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	YIELD signs shall not be mounted on the same post.		YIELD signs shall not be mounted on the same post.

	No items other than inventory stickers, sign installation dates, and bar codes shall be affixed to the fronts of YIELD signs, and the placement of these items shall be in the border of the sign. No items other than official traffic control signs, inventory stickers, sign installation dates, anti-vandalism stickers, and bar codes shall be mounted on the backs of YIELD signs. No items other than retroreflective strips or official traffic control signs shall be mounted on the fronts or backs of YIELD sign supports.		No items other than inventory stickers, sign installation dates, and bar codes shall be affixed to the fronts of YIELD signs, and the placement of these items shall be in the border of the sign. No items other than official traffic control signs, inventory stickers, sign installation dates, anti-vandalism stickers, and bar codes shall be mounted on the backs of YIELD signs. No items other than retroreflective strips or official traffic control signs shall be mounted on the fronts or backs of YIELD sign supports.

	YIELD signs shall not be used on Freeways and Expressways where there is ~~sufficient length~~ of an acceleration lane ~~to allow the motorist to properly merge with the traffic. This length~~, measured from the outside ramp curve point at the beginning of the acceleration lane to the end of the taper~~, shall be 600 ft. or more~~. When used ~~in this case~~, a 60-in. YIELD (R1-2) sign shall be used.		YIELD signs shall not be used on Freeways and Expressways where there is more than 600 ft. of an acceleration lane, measured from the outside ramp curve point at the beginning of the acceleration lane to the end of the taper. When used on Freeways and Expressways, a 60-in. YIELD (R1-2) sign shall be used.

	YIELD signs shall be used at a cloverleaf interchange where the in-loop traffic merges with the acceleration and deceleration traffic movement. In these cases, a 60-in. YIELD (R1-2) sign shall be utilized.		YIELD signs shall be used at a cloverleaf interchange where the in-loop traffic merges with the acceleration and deceleration traffic movement. In these cases, a 60-in. YIELD (R1-2) sign shall be utilized.

Hoskir: /* 903.5.36 Weight Limit Signs (R12 Series) (MUTCD Section 2B.59) */

2023-04-26T17:16:56Z

903.5.36 Weight Limit Signs (R12 Series) (MUTCD Section 2B.59)

← Older revision		Revision as of 12:16, 26 April 2023
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	==903.5.36 Weight Limit Signs (R12 Series) ([https://mutcd.fhwa.dot.gov/ MUTCD] Section 2B.59)==		==903.5.36 Weight Limit Signs (R12 Series) ([https://mutcd.fhwa.dot.gov/ MUTCD] Section 2B.59)==

	~~{\| style~~="~~margin: 1em auto 1em auto;~~"		<div class="flex-container1">
	\|-		<div>[[image:R12-1 36x48.png\|center\|110px\|thumb\|<center>'''R12-1'''</center>]]</div>
	~~\| style="padding: 0em 1.5em;" \|~~ [[image:R12-1 36x48.png\|center\|110px\|thumb\|<center>'''R12-1'''</center>]]		<div>[[image:R12-12 36x42.png\|center\|110px\|thumb\|<center>'''R12-12'''</center>]]</div>
	~~\| style="padding: 0em 1.5em;" \|~~ [[image:R12-12 36x42.png\|center\|110px\|thumb\|<center>'''R12-12'''</center>]]		<div>[[image:R12-13 36x42.png\|center\|110px\|thumb\|<center>'''R12-13'''</center>]]</div>
	~~\| style="padding: 0em 1.5em;" \|~~ [[image:R12-13 36x42.png\|center\|110px\|thumb\|<center>'''R12-13'''</center>]]		<div>[[image:R12-14 36x60.png\|center\|110px\|thumb\|<center>'''R12-14'''</center>]]</div>
	~~\| style="padding: 0em 1.5em;" \|~~ [[image:R12-14 36x60.png\|center\|110px\|thumb\|<center>'''R12-14'''</center>]]		</div>
	\|}

	'''Support.''' In 2022, a new load posting policy was implemented by MoDOT in our EPG. This new policy resulted from a plan of corrective action with FHWA. With this new policy, all structures on the national bridge inventory will be categorized under this new policy within the next 10 years. There are 10,387 structures on the state system. 270 of these structures are major or unusual structures and these will be categorized over the next 10 years. The remaining 10,117 structures consist of 6,940 normal bridges and 3,177 culverts. The normal bridges will be categorized in the next 4 years and the culverts will be reviewed in the last 3 years of the 10 year timeline of the plan. The R12-1 sign remains in use with the remaining MoDOT bridge posting signs being replaced by one of three new three new bridge posting signs in this section.		'''Support.''' In 2022, a new load posting policy was implemented by MoDOT in our EPG. This new policy resulted from a plan of corrective action with FHWA. With this new policy, all structures on the national bridge inventory will be categorized under this new policy within the next 10 years. There are 10,387 structures on the state system. 270 of these structures are major or unusual structures and these will be categorized over the next 10 years. The remaining 10,117 structures consist of 6,940 normal bridges and 3,177 culverts. The normal bridges will be categorized in the next 4 years and the culverts will be reviewed in the last 3 years of the 10 year timeline of the plan. The R12-1 sign remains in use with the remaining MoDOT bridge posting signs being replaced by one of three new three new bridge posting signs in this section.

Hoskir: /* 903.5.36 Weight Limit Signs (R12 Series) (MUTCD Section 2B.59) */

2023-04-26T17:05:25Z

903.5.36 Weight Limit Signs (R12 Series) (MUTCD Section 2B.59)

← Older revision		Revision as of 12:05, 26 April 2023
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	</div>		</div>

	~~{\| style~~="~~margin: 1em auto 1em auto; text~~-~~align: center;~~"		<div class="flex-container1">
	\|-		<div>[[image:Figure 903.5.36.1 Weight Limit Restriction 04-2023.png\|center\|700px\|thumb\|<center>'''Fig. 903.5.36.1 Weight Limit Restrictions'''</center>]] </div>
	\| [[image:Figure 903.5.36.1 Weight Limit Restriction 04-2023.png\|center\|700px\|thumb\|<center>'''Fig. 903.5.36.1 Weight Limit Restrictions'''</center>]]		<div>[[image:Figure 903.5.36.2 One Lane Bridge Weight and Width Retriction 4-2023.png\|center\|700px\|thumb\|<center>'''Fig. 903.5.36.2 One Lane Bridge Weight and Width Restrictions'''</center>]]</div>
	\| [[image:Figure 903.5.36.2 One Lane Bridge Weight and Width Retriction 4-2023.png\|center\|700px\|thumb\|<center>'''Fig. 903.5.36.2 One Lane Bridge Weight and Width Restrictions'''</center>]]		<div>[[image:Figure 903.5.36.3 One Lane Bridge Width Resriction 4-2023.png\|center\|700px\|thumb\|<center>'''Fig. 903.5.36.3 One Lane Bridge Width Restrictions'''</center>]]</div>
	\|-		</div>
	~~\| colspan="2" \|~~ [[image:Figure 903.5.36.3 One Lane Bridge Width Resriction 4-2023.png\|center\|700px\|thumb\|<center>'''Fig. 903.5.36.3 One Lane Bridge Width Restrictions'''</center>]]
	\|-
	\|}

	==903.5.37 Weigh Station Signs (R13 series) ([https://mutcd.fhwa.dot.gov/ MUTCD] Section 2B.60)==		==903.5.37 Weigh Station Signs (R13 series) ([https://mutcd.fhwa.dot.gov/ MUTCD] Section 2B.60)==

Hoskir: /* 903.5.36 Weight Limit Signs (R12 Series) (MUTCD Section 2B.59) */ changed title in fig 903.5.36.3

2023-04-26T14:37:03Z

903.5.36 Weight Limit Signs (R12 Series) (MUTCD Section 2B.59): changed title in fig 903.5.36.3

← Older revision		Revision as of 09:37, 26 April 2023
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	\| [[image:Figure 903.5.36.2 One Lane Bridge Weight and Width Retriction 4-2023.png\|center\|700px\|thumb\|<center>'''Fig. 903.5.36.2 One Lane Bridge Weight and Width Restrictions'''</center>]]		\| [[image:Figure 903.5.36.2 One Lane Bridge Weight and Width Retriction 4-2023.png\|center\|700px\|thumb\|<center>'''Fig. 903.5.36.2 One Lane Bridge Weight and Width Restrictions'''</center>]]
	\|-		\|-
	\| colspan="2" \| [[image:Figure 903.5.36.3 One Lane Bridge Width Resriction 4-2023.png\|center\|700px\|thumb\|<center>'''Fig. 903.5.36.3 One Lane Bridge ~~Weight and Speed~~ Restrictions'''</center>]]		\| colspan="2" \| [[image:Figure 903.5.36.3 One Lane Bridge Width Resriction 4-2023.png\|center\|700px\|thumb\|<center>'''Fig. 903.5.36.3 One Lane Bridge Width Restrictions'''</center>]]
	\|-		\|-
	\|}		\|}

Hoskir: /* 903.5.36 Weight Limit Signs (R12 Series) (MUTCD Section 2B.59) */ moved location of signs to top

2023-04-26T14:02:15Z

903.5.36 Weight Limit Signs (R12 Series) (MUTCD Section 2B.59): moved location of signs to top

← Older revision		Revision as of 09:02, 26 April 2023
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	==903.5.36 Weight Limit Signs (R12 Series) ([https://mutcd.fhwa.dot.gov/ MUTCD] Section 2B.59)==		==903.5.36 Weight Limit Signs (R12 Series) ([https://mutcd.fhwa.dot.gov/ MUTCD] Section 2B.59)==

	[[image:R12-1 36x48.png\|center\|~~125px~~\|thumb\|<center>'''R12-1'''</center>]]		{\| style="margin: 1em auto 1em auto;"
			\|-
			\| style="padding: 0em 1.5em;" \| [[image:R12-1 36x48.png\|center\|110px\|thumb\|<center>'''R12-1'''</center>]]
			\| style="padding: 0em 1.5em;" \| [[image:R12-12 36x42.png\|center\|110px\|thumb\|<center>'''R12-12'''</center>]]
			\| style="padding: 0em 1.5em;" \| [[image:R12-13 36x42.png\|center\|110px\|thumb\|<center>'''R12-13'''</center>]]
			\| style="padding: 0em 1.5em;" \| [[image:R12-14 36x60.png\|center\|110px\|thumb\|<center>'''R12-14'''</center>]]
			\|}

	'''Support.''' In 2022, a new load posting policy was implemented by MoDOT in our EPG. This new policy resulted from a plan of corrective action with FHWA. With this new policy, all structures on the national bridge inventory will be categorized under this new policy within the next 10 years. There are 10,387 structures on the state system. 270 of these structures are major or unusual structures and these will be categorized over the next 10 years. The remaining 10,117 structures consist of 6,940 normal bridges and 3,177 culverts. The normal bridges will be categorized in the next 4 years and the culverts will be reviewed in the last 3 years of the 10 year timeline of the plan. The R12-1 sign remains in use with the remaining MoDOT bridge posting signs being replaced by one of three new three new bridge posting signs in this section.		'''Support.''' In 2022, a new load posting policy was implemented by MoDOT in our EPG. This new policy resulted from a plan of corrective action with FHWA. With this new policy, all structures on the national bridge inventory will be categorized under this new policy within the next 10 years. There are 10,387 structures on the state system. 270 of these structures are major or unusual structures and these will be categorized over the next 10 years. The remaining 10,117 structures consist of 6,940 normal bridges and 3,177 culverts. The normal bridges will be categorized in the next 4 years and the culverts will be reviewed in the last 3 years of the 10 year timeline of the plan. The R12-1 sign remains in use with the remaining MoDOT bridge posting signs being replaced by one of three new three new bridge posting signs in this section.
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	'''903.5.36.1 Weight/Speed Restriction Signing (R12 Series)'''		'''903.5.36.1 Weight/Speed Restriction Signing (R12 Series)'''

	~~{\| style="margin: 1em auto 1em auto"~~
	\|-
	~~\|[[image:R12-12 36x42.png\|left\|100px\|thumb\|<center>'''R12-12'''</center>]]~~
	~~\|\|[[image:R12-13 36x42.png\|left\|100px\|thumb\|<center>'''R12-13'''</center>]]~~
	~~\|\|[[image:R12-14 36x60.png\|left\|100px\|thumb\|<center>'''R12-14'''</center>]]~~
	\|}

	<div align="center";>		<div align="center";>

Hoskir: /* 903.5.36 Weight Limit Signs (R12 Series) (MUTCD Section 2B.59) */ updated per RR 3682

2023-04-26T13:21:09Z

903.5.36 Weight Limit Signs (R12 Series) (MUTCD Section 2B.59): updated per RR 3682

Show changes

Legged1: Per TR(#3537), 903.5.43 Noise Ordinance Signing overhauled to Engine Brake Muffler Required Signing

2022-08-31T21:35:25Z

Per TR(#3537), 903.5.43 Noise Ordinance Signing overhauled to Engine Brake Muffler Required Signing

← Older revision		Revision as of 16:35, 31 August 2022
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	'''Support.''' The HEADLIGHTS ON WHEN WIPERS ARE REQUIRED (R16-5a) sign, supported by [https://revisor.mo.gov/main/OneSection.aspx?section=307.020 RSMo 307.020] in 2004, were developed to inform motorists of the new law directing them to turn on headlights when wipers are on and during inclement weather. The use of these signs have been discontinued as the law has been in place for more than 15 years and many vehicles come equipped with headlights that turn on when wipers are activated. Existing signs are to be removed at the end of their sign life.		'''Support.''' The HEADLIGHTS ON WHEN WIPERS ARE REQUIRED (R16-5a) sign, supported by [https://revisor.mo.gov/main/OneSection.aspx?section=307.020 RSMo 307.020] in 2004, were developed to inform motorists of the new law directing them to turn on headlights when wipers are on and during inclement weather. The use of these signs have been discontinued as the law has been in place for more than 15 years and many vehicles come equipped with headlights that turn on when wipers are activated. Existing signs are to be removed at the end of their sign life.

	==903.5.43 ~~Noise Ordinance~~ Signing ==		==903.5.43 Engine Brake Muffler Required Signing ==

	[[image:R5-21.~~jpg\|110px~~\|center\|thumb\|<center>'''R5-21'''</center>]]		[[image:R5-21b.png\|center\|thumb\|<center>'''R5-21b'''</center>]]

	'''~~Support~~.''' ~~Vehicles traveling on roads generate noise that is objectionable~~. ~~Some~~ vehicles can create additional noise that can be considered offensive by some who live near highways. One type of noise in particular that causes concern is the noise that trucks can cause by using jake brakes. Jake brakes are safety ~~devices~~ on ~~trucks that allow them to~~ use ~~the engine~~ to ~~slow~~ the ~~vehicle~~, ~~thereby reducing~~ the ~~wear on the vehicle’s braking system~~. ~~When used and installed properly they can stop a vehicle that might otherwise lose control~~. ~~However~~, ~~when used improperly they can cause~~ a noise ~~that many neighbors consider offensive~~. The ~~purpose of this policy~~ is ~~to provide~~ a ~~means~~ for ~~communities that are concerned about~~ excessive ~~road~~ noise from ~~Jake brakes, or other sources, to address these concerns~~.		'''History.''' MoDOT once had a NOISE ORDINANCE ENFORCED policy which was developed to address cities’ requests to install NO JAKE BRAKE signing. These requests were generated when a community experienced excessive noise related to improperly installed/operated engine braking systems on commercial vehicles. Jake brakes, or engine braking systems, are safety features of commercial vehicles. MoDOT was not willing to post signs on state routes which prohibited the use of these safety devices. However, to address the increasing requests for signing, MoDOT did permit the installation of NOISE ORDINANCE ENFORCED signs if a city passed an appropriate ordinance. This program was replaced with the current ENGINE BRAKE MUFFLERS REQUIRED signing in January 2022. This change was designed to address shortcomings of the noise ordinance signing program, which included difficulty in enforcing a noise level and noise ordinances which did not contain language relevant to engine braking noise levels. The current program is based on the direction other states have taken, focusing on the physical equipment on a commercial vehicle which can be more easily inspected and evaluated for deficiencies. This signing program is also targeting the primary concern of excessive noise from engine braking.

	'''~~Standard~~.''' ~~If a community has~~ an ~~established ordinance concerning noise levels MoDOT will install NOISE ORDINANCE ENFORCED sign upon request once a copy of~~ the ~~ordinance has been received~~. These signs ~~shall be installed to~~ the ~~right and adjacent~~ to ~~the city limit sign~~.		'''Support.''' Commercial vehicles are commonly equipped with an engine braking system. These systems supplement the vehicle’s mechanical brakes aiding in slowing these heavy vehicles safely. These safety systems, when not properly installed, can create excessive noise which many communities find objectionable. MoDOT does not permit regulatory signs which prohibit the use of these safety devices, however, the ENGINE BRAKE MUFFLERS REQUIRED signing conveys to truck drivers they must use these safety devices in an appropriate manner.

	'''Option.''' If there is insufficient space to the right of the city limit sign to place the ~~NOISE ORDINANCE ENFORCED~~ sign, it may be installed 200 ft. downstream of the city limit sign.		'''Option.''' If a community experiences issues with excessive noise from improperly used and installed engine braking systems on commercial vehicles, they can pass an ordinance and request MoDOT to install ENGINE BRAKE MUFFLERS REQUIRED signing at their city limit sign locations. MoDOT will install and maintain these signs with only a copy of the ordinance for our records, no fee or contract is involved. A jurisdiction can pass an ordinance specifically related to engine braking or include the language as part of another ordinance, such as a noise ordinance.

			'''Standard.''' Before MoDOT will install ENGINE BRAKE MUFFLERS REQUIRED signing, a city must pass an appropriate ordinance which will be approved and kept on file by CO Highway Safety and Traffic. The ordinance shall include the following language:

			:<i>Engine compression braking devices on any commercial vehicle, as defined in Missouri Revised Statute RSMo Section 301.010, may only be used within the city limits of [CITY NAME] if the truck is equipped with an adequate muffler (factory muffler or equivalent aftermarket muffler) which is properly maintained to prevent any excessive or unusual noise. If the truck’s exhaust system is equipped with a muffler cut-off, bypass, or similar device, that device shall not be activated when the engine brake is being utilized. Unmuffled engine braking system shall only be utilized within the city limits by commercial motor vehicles in emergency situations to protect life or property. Engine braking systems on rescue vehicles, city and state vehicles are exempt from this ordinance if used in the performance of official duties.</i>

			ENGINE BRAKE MUFFLER REQUIRED signing shall only be installed at the city limit location.<br>
			ENGINE BRAKE MUFFLER REQUIRED signing shall not be installed on freeways or expressways within the city limits where the posted speed limit is 45 mph or greater due to the critical need for the device at higher speeds.

			Existing NOISE ORDINANCE ENFORCED signs shall be removed at the end of the signs’ service life, with no new NOISE ORDINANCE ENFORCED signs being installed after January 2022.

			Individual sign installation locations can be denied by MoDOT if engineering judgement determines the prohibition would negatively impact safety, such as on long steep grades or abrupt/unexpected approaches to intersections.

			'''Option.''' If the city limit on a freeway or expressway is within a posted speed limit of 45 mph or greater and the posted speed limit on that route drops to 40 mph or less, the ENGINE BRAKE MUFFLER REQUIRED sign may be installed adjacent to the speed limit sign where the speed limit drops below 45 mph.

			At the end of a NOISE ORDINANCE ENFORCED sign’s life, or before, a city may request the new ENGINE BRAKE MUFFLER REQUIRED signing once the appropriate ordinance is passed.

			If there is insufficient space to the right of the city limit sign to place the ENGINE BRAKE MUFFLER REQUIRED sign, it may be installed 200 ft. downstream of the city limit sign.

	==903.5.44 Regulatory Signs For Trash/Dumping (R5-26, R5-28)==		==903.5.44 Regulatory Signs For Trash/Dumping (R5-26, R5-28)==

Smithk: /* 903.5.20 DO NOT ENTER Sign (R5-1) (MUTCD Section 2B.37) */ minor correction

2022-04-14T15:29:18Z

903.5.20 DO NOT ENTER Sign (R5-1) (MUTCD Section 2B.37): minor correction

← Older revision		Revision as of 10:29, 14 April 2022
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	[[image:R5-1.gif\|center\|thumb\|<center>'''R5-1'''</center>\|125px]]		[[image:R5-1.gif\|center\|thumb\|<center>'''R5-1'''</center>\|125px]]

	'''Standard.''' The DO NOT ENTER (R5-1) sign shall be used where traffic is prohibited from entering a restricted roadway. If the sign is mounted behind a STOP or YIELD sign, the 36-in. DO NOT ENTER sign shall be used behind a 48 in. STOP sign and a 30 in. DO NOT ENTER sign shall be used behind a ~~behind and~~ 60-in. YIELD sign.		'''Standard.''' The DO NOT ENTER (R5-1) sign shall be used where traffic is prohibited from entering a restricted roadway. If the sign is mounted behind a STOP or YIELD sign, the 36-in. DO NOT ENTER sign shall be used behind a 48 in. STOP sign and a 30 in. DO NOT ENTER sign shall be used behind a 60-in. YIELD sign.

	'''Guidance.''' The DO NOT ENTER sign, if used, should be placed directly in view of a road user at the point where a road user could wrongly enter a divided highway, one-way roadway, or ramp. The sign should be mounted on the right-hand side of the roadway, facing traffic that might enter the roadway or ramp in the wrong direction.		'''Guidance.''' The DO NOT ENTER sign, if used, should be placed directly in view of a road user at the point where a road user could wrongly enter a divided highway, one-way roadway, or ramp. The sign should be mounted on the right-hand side of the roadway, facing traffic that might enter the roadway or ramp in the wrong direction.

Smithk: Updated website links for increased security

2021-10-26T20:07:23Z

Updated website links for increased security

Smithk: updated links

2021-03-02T18:23:51Z

updated links

← Older revision		Revision as of 13:23, 2 March 2021
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	[[image:R8-7.gif\|center\|150px\|thumb\|<center>'''R8-7'''</center>]]		[[image:R8-7.gif\|center\|150px\|thumb\|<center>'''R8-7'''</center>]]

	'''Option.''' The EMERGENCY STOPPING ONLY (R8-7) sign may be used to discourage or prohibit shoulder parking on the interstate and other freeway highway systems based on [https://revisor.mo.gov/main/OneSection.aspx?section=304.024~~&bid=16203&hl=~~ Section 304.024 RSMo].		'''Option.''' The EMERGENCY STOPPING ONLY (R8-7) sign may be used to discourage or prohibit shoulder parking on the interstate and other freeway highway systems based on [https://revisor.mo.gov/main/OneSection.aspx?section=304.024 Section 304.024 RSMo].

	'''Standard.''' EMERGENCY STOPPING ONLY signs shall be rectangular and have a black legend and border on a white background.		'''Standard.''' EMERGENCY STOPPING ONLY signs shall be rectangular and have a black legend and border on a white background.
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	[[image:R16-5.gif\|center\|thumb\|<center>'''R16-5a'''</center>\|125px]]		[[image:R16-5.gif\|center\|thumb\|<center>'''R16-5a'''</center>\|125px]]

	'''Support.''' The HEADLIGHTS ON WHEN WIPERS ARE REQUIRED (R16-5a) sign, supported by [https://revisor.mo.gov/main/OneSection.aspx?section=307.020~~&bid=16467&hl=~~ RSMo 307.020] in 2004, were developed to inform motorists of the new law directing them to turn on headlights when wipers are on and during inclement weather. The use of these signs have been discontinued as the law has been in place for more than 15 years and many vehicles come equipped with headlights that turn on when wipers are activated. Existing signs are to be removed at the end of their sign life.		'''Support.''' The HEADLIGHTS ON WHEN WIPERS ARE REQUIRED (R16-5a) sign, supported by [https://revisor.mo.gov/main/OneSection.aspx?section=307.020 RSMo 307.020] in 2004, were developed to inform motorists of the new law directing them to turn on headlights when wipers are on and during inclement weather. The use of these signs have been discontinued as the law has been in place for more than 15 years and many vehicles come equipped with headlights that turn on when wipers are activated. Existing signs are to be removed at the end of their sign life.

	==903.5.43 Noise Ordinance Signing ==		==903.5.43 Noise Ordinance Signing ==

← Older revision		Revision as of 15:07, 26 October 2021
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	\|'''Additional Information'''		\|'''Additional Information'''
	\|-		\|-
	\|[~~http~~://epg.modot.org/files/1/1d/949.2_speed_limits.pdf How Speed Limits are Established]		\|[https://epg.modot.org/files/1/1d/949.2_speed_limits.pdf How Speed Limits are Established]
	\|}		\|}

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	Regulatory signs shall be installed at or near where the regulations apply. The signs shall clearly indicate the requirements imposed by the regulations and shall be designed and installed to provide adequate visibility and legibility in order to obtain compliance.		Regulatory signs shall be installed at or near where the regulations apply. The signs shall clearly indicate the requirements imposed by the regulations and shall be designed and installed to provide adequate visibility and legibility in order to obtain compliance.

	Regulatory signs shall be retroreflective or illuminated (see [~~http~~://epg.modot.org/index.php?title=903.2_Extent_of_Signing#903.2.17_Retroreflectivity_and_Illumination_.28MUTCD_Section_2A.07.29 EPG 903.2.17, Retroreflectivity and Illumination]) to show the same shape and similar color by both day and night, unless specifically stated otherwise in the text discussion of this article for a particular sign or group of signs.		Regulatory signs shall be retroreflective or illuminated (see [https://epg.modot.org/index.php?title=903.2_Extent_of_Signing#903.2.17_Retroreflectivity_and_Illumination_.28MUTCD_Section_2A.07.29 EPG 903.2.17, Retroreflectivity and Illumination]) to show the same shape and similar color by both day and night, unless specifically stated otherwise in the text discussion of this article for a particular sign or group of signs.

	The requirements for sign illumination shall not be considered to be satisfied by street or highway lighting.		The requirements for sign illumination shall not be considered to be satisfied by street or highway lighting.
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	'''Support.''' The use of educational plaques to supplement symbol signs is described in [[903.2 Extent of Signing#903.2.14 Symbols (MUTCD Section 2A.12)\|EPG 903.2.14, Symbols]].		'''Support.''' The use of educational plaques to supplement symbol signs is described in [[903.2 Extent of Signing#903.2.14 Symbols (MUTCD Section 2A.12)\|EPG 903.2.14, Symbols]].

	'''Guidance.''' [~~http~~://epg.modot.mo.gov/index.php?title=616.6_Temporary_Traffic_Control_Zone_Devices_%28MUTCD_6F%29#616.6.60_Portable_Changeable_Message_Signs_.28MUTCD_6F.60.29 Changeable Message signs] displaying a regulatory message incorporating a prohibitory message that includes a red circle and slash on a static sign should display a red symbol that approximates the same red circle and slash as closely as possible.		'''Guidance.''' [https://epg.modot.mo.gov/index.php?title=616.6_Temporary_Traffic_Control_Zone_Devices_%28MUTCD_6F%29#616.6.60_Portable_Changeable_Message_Signs_.28MUTCD_6F.60.29 Changeable Message signs] displaying a regulatory message incorporating a prohibitory message that includes a red circle and slash on a static sign should display a red symbol that approximates the same red circle and slash as closely as possible.

	==903.5.3 Dimensions ([https://mutcd.fhwa.dot.gov/ MUTCD] Section 2B.03)==		==903.5.3 Dimensions ([https://mutcd.fhwa.dot.gov/ MUTCD] Section 2B.03)==
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	'''Standard.''' Except as provided in [[903.2 Extent of Signing#903.2.13 Dimensions (MUTCD Section 2A.11)\|EPG 903.2.13]], the sizes for regulatory signs shall be as shown in Table 903.5.3, below.		'''Standard.''' Except as provided in [[903.2 Extent of Signing#903.2.13 Dimensions (MUTCD Section 2A.11)\|EPG 903.2.13]], the sizes for regulatory signs shall be as shown in Table 903.5.3, below.

	'''Support.''' [~~http~~://epg.modot.org/index.php?title=903.2_Extent_of_Signing#903.2.21_Dimensions_.28MUTCD_Section_2A.11.29 EPG 903.2.13] contains information regarding the applicability of the various columns in Table 903.5.3.		'''Support.''' [https://epg.modot.org/index.php?title=903.2_Extent_of_Signing#903.2.21_Dimensions_.28MUTCD_Section_2A.11.29 EPG 903.2.13] contains information regarding the applicability of the various columns in Table 903.5.3.

	'''Standard.''' The minimum sizes for regulatory signs facing traffic on multi-lane conventional roads shall be as shown in the multi-lane column of Table 903.5.3.		'''Standard.''' The minimum sizes for regulatory signs facing traffic on multi-lane conventional roads shall be as shown in the multi-lane column of Table 903.5.3.
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	===903.5.4.2 STOP Sign Placement ([https://mutcd.fhwa.dot.gov/ MUTCD] Section 2B.10)===		===903.5.4.2 STOP Sign Placement ([https://mutcd.fhwa.dot.gov/ MUTCD] Section 2B.10)===

	'''Standard.''' The STOP sign shall be installed on the near side of the intersection on the right-hand side of the approach to which it applies. When the STOP sign is installed at this required location and the sign visibility is restricted, a Stop Ahead sign (see [~~http~~://epg.modot.org/index.php/903.6_Warning_Signs#903.6.28_Advance_Traffic_Control_Signs_.28W3-1.2C_W3-2.2C_W3-3.2C_W3-4.29_.28MUTCD_Section_2C.36.29 EPG 903.6.28 Advance Traffic Control Signs]) shall be installed in advance of the STOP sign.		'''Standard.''' The STOP sign shall be installed on the near side of the intersection on the right-hand side of the approach to which it applies. When the STOP sign is installed at this required location and the sign visibility is restricted, a Stop Ahead sign (see [https://epg.modot.org/index.php/903.6_Warning_Signs#903.6.28_Advance_Traffic_Control_Signs_.28W3-1.2C_W3-2.2C_W3-3.2C_W3-4.29_.28MUTCD_Section_2C.36.29 EPG 903.6.28 Advance Traffic Control Signs]) shall be installed in advance of the STOP sign.

	The STOP sign shall be located as close as practical to the intersection it regulates, while optimizing its visibility to the road user it is intended to regulate.		The STOP sign shall be located as close as practical to the intersection it regulates, while optimizing its visibility to the road user it is intended to regulate.
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	'''Support.''' Multiway stop control can be useful as a safety measure at intersections if certain traffic conditions exist. Safety concerns associated with multiway stops include pedestrians, bicyclists, and all road users expecting other road users to stop. Multiway stop control is used where the volume of traffic on the intersecting roads is approximately equal.		'''Support.''' Multiway stop control can be useful as a safety measure at intersections if certain traffic conditions exist. Safety concerns associated with multiway stops include pedestrians, bicyclists, and all road users expecting other road users to stop. Multiway stop control is used where the volume of traffic on the intersecting roads is approximately equal.

	The restrictions on the use of STOP signs described in [~~http~~://epg.modot.org/index.php/903.5_Regulatory_Signs#903.5.4.1_STOP_Sign_Applications_.28MUTCD_Section_2B.06.29 EPG 903.5.4.1] also apply to multiway stop applications.		The restrictions on the use of STOP signs described in [https://epg.modot.org/index.php/903.5_Regulatory_Signs#903.5.4.1_STOP_Sign_Applications_.28MUTCD_Section_2B.06.29 EPG 903.5.4.1] also apply to multiway stop applications.

	'''Guidance.''' The decision to install multiway stop control should be based on an engineering study. The following criteria should be considered in the engineering study for a multiway STOP sign installation:		'''Guidance.''' The decision to install multiway stop control should be based on an engineering study. The following criteria should be considered in the engineering study for a multiway STOP sign installation:
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	An advisory speed plaque mounted below a warning sign should be used to warn road users of an advisory speed for a roadway condition. A Speed Limit sign should not be used for this situation.		An advisory speed plaque mounted below a warning sign should be used to warn road users of an advisory speed for a roadway condition. A Speed Limit sign should not be used for this situation.

	'''Support.''' Advisory Speed signs are discussed in [~~http~~://epg.modot.org/index.php?title=903.6_Warning_Signs#903.6.36_Advisory_Exit_and_Ramp_Speed_Signs_.28W13-2_and_W13-3.29_.28MUTCD_Section_2C.14.29 EPG 903.6.36] and [~~http~~://epg.modot.org/index.php?title=903.6_Warning_Signs#903.6.46_Advisory_Speed_Supplemental_Plaque_.28W13-1P.29_.28MUTCD_Section_2C.08.29 EPG 903.6.46] and Temporary Traffic Control Zone Speed signs are discussed in [[616.23 Traffic Control for Field Operations\|the MoDOT Traffic Control for Field Operations]].		'''Support.''' Advisory Speed signs are discussed in [https://epg.modot.org/index.php?title=903.6_Warning_Signs#903.6.36_Advisory_Exit_and_Ramp_Speed_Signs_.28W13-2_and_W13-3.29_.28MUTCD_Section_2C.14.29 EPG 903.6.36] and [https://epg.modot.org/index.php?title=903.6_Warning_Signs#903.6.46_Advisory_Speed_Supplemental_Plaque_.28W13-1P.29_.28MUTCD_Section_2C.08.29 EPG 903.6.46] and Temporary Traffic Control Zone Speed signs are discussed in [[616.23 Traffic Control for Field Operations\|the MoDOT Traffic Control for Field Operations]].

	==903.5.8 Combination Speed Limit Sign (R2-4a)==		==903.5.8 Combination Speed Limit Sign (R2-4a)==
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	C. At least one WRONG WAY sign shall be placed on the exit ramp facing a traveler traveling in the wrong direction.		C. At least one WRONG WAY sign shall be placed on the exit ramp facing a traveler traveling in the wrong direction.

	'''Guidance.''' In addition, the following pavement markings should be used (see [~~http~~://epg.modot.org/index.php?title=903.5_Regulatory_Signs#903.5.21_WRONG_WAY_Sign_.28R5-1a.29_.28MUTCD_Section_2B.38.29 Figure 903.5.21.1]):		'''Guidance.''' In addition, the following pavement markings should be used (see [https://epg.modot.org/index.php?title=903.5_Regulatory_Signs#903.5.21_WRONG_WAY_Sign_.28R5-1a.29_.28MUTCD_Section_2B.38.29 Figure 903.5.21.1]):

	A. On two-lane paved crossroads at interchanges, double solid yellow lines should be used as a center line for an adequate distance on both sides approaching the ramp intersections.		A. On two-lane paved crossroads at interchanges, double solid yellow lines should be used as a center line for an adequate distance on both sides approaching the ramp intersections.
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	B. Additional WRONG WAY signs may be used.		B. Additional WRONG WAY signs may be used.

	C. Slender, elongated wrong-way arrow pavement markings (see [~~http~~://epg.modot.~~mo.gov~~/index.php?title=620.2_Pavement_and_Curb_Markings_%28MUTCD_Chapter_3B%29#620.2.20_Pavement_Word.2C_Symbol_and_Arrow_Markings_.28MUTCD_Section_3B.20.29 EPG 620.2.20]) intended primarily to warn wrong-way travelers that they are traveling in the wrong direction may be placed upstream from the ramp terminus (see [~~http~~://epg.modot.org/index.php?title=903.5_Regulatory_Signs#903.5.21_WRONG_WAY_Sign_.28R5-1a.29_.28MUTCD_Section_2B.38.29 Fig. 903.5.21.1]) to indicate the correct direction of traffic flow. Wrong-way arrow pavement markings may also be placed on the exit ramp at appropriate locations near the crossroad junction to indicate wrong-way movement. The wrong-way arrow markings may consist of pavement markings or bidirectional red-and-white raised pavement markers or other units that show red to wrong-way travelers and white to other travelers.		C. Slender, elongated wrong-way arrow pavement markings (see [https://epg.modot.org/index.php?title=620.2_Pavement_and_Curb_Markings_%28MUTCD_Chapter_3B%29#620.2.20_Pavement_Word.2C_Symbol_and_Arrow_Markings_.28MUTCD_Section_3B.20.29 EPG 620.2.20]) intended primarily to warn wrong-way travelers that they are traveling in the wrong direction may be placed upstream from the ramp terminus (see [https://epg.modot.org/index.php?title=903.5_Regulatory_Signs#903.5.21_WRONG_WAY_Sign_.28R5-1a.29_.28MUTCD_Section_2B.38.29 Fig. 903.5.21.1]) to indicate the correct direction of traffic flow. Wrong-way arrow pavement markings may also be placed on the exit ramp at appropriate locations near the crossroad junction to indicate wrong-way movement. The wrong-way arrow markings may consist of pavement markings or bidirectional red-and-white raised pavement markers or other units that show red to wrong-way travelers and white to other travelers.

	D. Lane-use arrow pavement markings may be placed on the exit ramp and crossroad near their intersection to indicate the permissive direction of flow.		D. Lane-use arrow pavement markings may be placed on the exit ramp and crossroad near their intersection to indicate the permissive direction of flow.

	'''Guidance.''' On interchange entrance ramps where the ramp merges with the through roadway and the design of the interchange does not clearly make evident the direction of traffic on the separate roadways or ramps, a ONE WAY sign visible to traffic on the entrance ramp and through roadway should be placed on each side of the through roadway near the entrance ramp merging point as illustrated in [~~http~~://epg.modot.org/index.php?title=903.5_Regulatory_Signs#903.5.21_WRONG_WAY_Sign_.28R5-1a.29_.28MUTCD_Section_2B.38.29 Fig. 903.5.21.2].		'''Guidance.''' On interchange entrance ramps where the ramp merges with the through roadway and the design of the interchange does not clearly make evident the direction of traffic on the separate roadways or ramps, a ONE WAY sign visible to traffic on the entrance ramp and through roadway should be placed on each side of the through roadway near the entrance ramp merging point as illustrated in [https://epg.modot.org/index.php?title=903.5_Regulatory_Signs#903.5.21_WRONG_WAY_Sign_.28R5-1a.29_.28MUTCD_Section_2B.38.29 Fig. 903.5.21.2].

	'''Option.''' At locations where engineering judgment determines that a special need exists, other standard warning or prohibitive methods and devices may be used as a deterrent to the wrong-way movement.		'''Option.''' At locations where engineering judgment determines that a special need exists, other standard warning or prohibitive methods and devices may be used as a deterrent to the wrong-way movement.
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	'''Standard.''' The NO TURN ON RED (R10-11a) sign shall be used to prohibit a right turn on red.		'''Standard.''' The NO TURN ON RED (R10-11a) sign shall be used to prohibit a right turn on red.

	'''Guidance.''' The RIGHT TURN SIGNAL (R10-10R) sign should be used when a right turn movement with an exclusive turn lane is protected and controlled by a three-section head consisting of R-Yrt-Rt (see [~~http~~://epg.modot.org/index.php?title=902.5_Traffic_Control_Signal_Features_%28MUTCD_Chapter_4D%29#902.5.31_Signal_Indications_for_Permissive_Only_Mode_Right-Turn_Movements_.28MUTCD_Section_4D.22.29 Fig. 902.5.31]). If used, the NO TURN ON RED sign should mounted adjacent to the far right signal indication. Refer to [[902.5 Traffic Control Signal Features (MUTCD Chapter 4D)#902.5.33 Signal Indications for Protected/Permissive Mode Right-Turn Movements (MUTCD Section 4D.24)\|EPG 902.5.33]] to determine when a NO TURN ON RED sign should be considered.		'''Guidance.''' The RIGHT TURN SIGNAL (R10-10R) sign should be used when a right turn movement with an exclusive turn lane is protected and controlled by a three-section head consisting of R-Yrt-Rt (see [https://epg.modot.org/index.php?title=902.5_Traffic_Control_Signal_Features_%28MUTCD_Chapter_4D%29#902.5.31_Signal_Indications_for_Permissive_Only_Mode_Right-Turn_Movements_.28MUTCD_Section_4D.22.29 Fig. 902.5.31]). If used, the NO TURN ON RED sign should mounted adjacent to the far right signal indication. Refer to [[902.5 Traffic Control Signal Features (MUTCD Chapter 4D)#902.5.33 Signal Indications for Protected/Permissive Mode Right-Turn Movements (MUTCD Section 4D.24)\|EPG 902.5.33]] to determine when a NO TURN ON RED sign should be considered.

	'''Support.''' [[902.6 Pedestrian Control Features (MUTCD Chapter 4E)\|EPG 902.6 Pedestrian Control Features]] contains information regarding the application of the R10-32P plaque.		'''Support.''' [[902.6 Pedestrian Control Features (MUTCD Chapter 4E)\|EPG 902.6 Pedestrian Control Features]] contains information regarding the application of the R10-32P plaque.