Overview of road signs used in Texas, a U.S. state
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Comment: I'm afraid I don't think I'm the right person to evaluate this article, sadly. Sincerely,
Guessitsavis (she/they) (
Talk) 17:32, 17 March 2024 (UTC)
Comment: For a few of these signs, they seem to come from Delaware. Is this because they are the same? Sincerely,
Guessitsavis (she/they) (
Talk) 21:34, 16 March 2024 (UTC)
The 11th edition of the MUTCD was released on December 19, 2023 with an effective date of January 18, 2024.[1] Texas has two years from the effective date to adopt the new TMUTCD.[2]
The first edition of the Texas Manual on Uniform Traffic Control Devices was published in 1980.[3][4] This manual was most recently updated in 2014, after the revision 2 of the 2011 edition was released. Texas is among the ten states to have adopted its own MUTCD "in substantial conformance to" an edition of the national MUTCD, annotated throughout with state-specific modifications and clarifications.[5]
Regulatory signs
Regulatory signs give instructions to motorists, pedestrians, and cyclists. Signs including Stop, Yield, No Turns, No Trucks, No Parking, No Stopping, Minimum Speed, Right Turn Only, Do Not Enter, Weight Limit, and Speed Limit are considered regulatory signs. Some have special shapes, such as the
octagon for the Stop sign and the
crossbuck for railroad crossings. These signs are in the R series of signs in the MUTCD and typically in the R series in most state supplements or state MUTCDs.
R1 series: Stop and yield
The MUTCD's R1 series is for Stop and Yield. The 4-WAY and 3-WAY plaques (R1-3) were deprecated in the 2009 Edition of the MUTCD in favor of the ALL WAY plaque (R1-3P).
The MUTCD's R2 series is for
speed limit signs. Some state supplements and state MUTCDs place various speed limit signs in other series. Speed limits in the United States are always in
miles per hour.
R2-1 Speed limit
R2-1T Speed limit (with red border)
R2-4P Minimum speed limit (plaque)
R2-4a Combined speed limit
R2-4cT Maximum legal speeds
R2-5P Unless otherwise posted (plaque)
R2-5aP Citywide (plaque)
R2-5bP Neighborhood (plaque)
R2-5cP Residential (plaque)
R3 series: Lane usage and turns
The MUTCD's R3 series of signs is for lane usage and turn signs.
R3-6L Optional movement lane control, straight through and left turn
R3-6R Optional movement lane control, straight through and right turn
R3-8 Advance intersection lane control (two lanes)
R3-8a Advance intersection lane control (three lanes)
R3-8b Advance intersection lane control (three lanes)
R3-8uT Turnaround only
R3-9a Two-Way Left turn only (overhead)
R3-9b Two-Way Left turn only (post-mounted)
R3-9cP BEGIN
R3-9dP END
R3-9e Reversible lane control (symbol)
R3-9f Reversible lane control (post-mounted)
R3-9g Advance reversible lane control transition signing
R3-9h Advance reversible lane control transition signing
R3-9i End Reverse Lane
R3-17 Bike lane
R3-17aP Ahead plaque
R3-17bP Ends plaque
R3-18 No U or left turn
R3-20L Begin left turn lane
R3-20R Begin right turn lane
R3-27 No straight through
R3-33R Right lane must exit
R3-33L Left lane must exit
R3-33TR Right lane must exit
R3-33TL Left lane must exit
R3-33aTR Right lane must enter ramp
R3-33aTL Left lane must enter ramp
R3-33bTR Right lane must enter freeway
R3-33bTL Left lane must enter freeway
R3-33cT All traffic must exit
R4 series: Regulation of movement
The MUTCD's R4 series of signs is for the regulation of movement signs. As all situations are not covered, several states have their own standards in addition to the MUTCD.
R4-1 Do not pass
R4-2 Pass with care
R4-2aT Left lane for passing only
R4-3 Slower traffic keep right
R4-3bT Do not cross double white line
R4-4 Begin right turn lane yield to bikes
R4-5aT No trucks left lane
R4-5bT Begin no trucks left lane
R4-5cT End no trucks left lane
R4-7 Keep right
R4-7a Keep right
R4-7b Keep right
R4-7c Keep right of obstacle
R4-8 Keep left
R4-8a Keep left
R4-8b Keep left
R4-8c Keep left of obstacle
R4-9 Stay in lane
R4-10 Runaway vehicles only
R4-12 Slow vehicles with five or more following vehicles must use turn-out
R4-13 Slow vehicles must use turn-out ahead
R4-14 Slow vehicles must turn out
R4-17 Do not drive on shoulder
R4-18 Do not pass on shoulder
R5 series: Exclusionary
The MUTCD's R5 series of signs is for exclusionary signs. The most common of these signs is the do not enter sign.
R5-1 Do not enter
R5-1TP Ramp (plaque)
R5-1a Wrong way
R5-1b Wrong way for bicycles
R5-2 No trucks
R5-3 No motorized vehicles
R5-4 No commercial vehicles
R5-4aT No engine brake by city ordinance
R5-5 No lugged vehicles
R5-6 No bicycles
R5-7 No non-motorized traffic
R5-8 No motor driven cycles
R5-10 No pedestrians, bicycles or motor driven cycles
R5-10a No pedestrians, bicycles or motor driven cycles on freeway
R5-10b No pedestrians or bicycles
R5-10c No pedestrians
R5-11T For official or emergency vehicle use only
R6 series: One way and divided highway
The MUTCD's R6 series of signs is for one way and divided highway signs. The most common of these signs is the One Way sign.
The MUTCD allows for three types of parking signs: permissive, No Parking, and No Standing. However, in most states, there is an additional more restrictive one, No Stopping. These signs are found in the R7 series of signs in the MUTCD. Permissive parking signs allow for parking for either an unlimited or varied amount of time. They are often used in conjunction with
parking meters and parking permits. They are specified by the MUTCD to be green on white. Local variations occur with additional information and slightly different designs. No Parking signs indicate that loading or unloading while temporarily stopped is permitted, but the driver must not leave the vicinity of the vehicle.[6] Some No Parking signs display time restrictions, while others are permanent restrictions. There are also temporary versions of the signs, often of similar design to the permanent ones. These signs are specified by the MUTCD to be red on white, although local variations occur. No Standing signs indicate that stopping temporarily to load or unload passengers is allowed, but vehicles cannot be stopped at the location for longer periods of time, even if the driver remains with the vehicle.[6] As with no parking signs, some restrictions displayed on the signs are permanent, and some are time-based.
R7-1 No parking any time
R7-2 No parking from 8:30 am to 5:30 pm
R7-2a No parking from 8:30 am to 5:30 pm (alternative)
R7-3 No parking except Sundays and Holidays
R7-4 No standing any time
R7-5 One hour parking time
R7-6 No parking, loading zone
R7-7 No parking bus stop
R7-8 Reserved parking (wheelchair)
R7-8aP Van accessible
R7-8aPT Violators subject to fine and towing (plaque)
R7-9 No parking bike lane
R7-9a (No parking symbol) bike lane
R7-11 Parallel parking (double)
R7-20 Parking fee station
R7-21R 1 hour pay parking
R7-21aR Pay parking 15 minute limit
R7-22 Pay parking
R7-23 Permitted parking from 8:30 am to 5:30 pm
R7-23a Permitted parking 1 hour from 7:00 am to 6:00 pm
R7-107 No parking, bus stop
R7-107a No parking, bus stop
R7-108 Two hour parking time from 8:30 am to 5:30 pm
R7-111 No parking except electric vehicles
R7-111a No parking except electric vehicles
R7-112 2 hr parking electric vehicles only
R7-112a 2 hr parking electric vehicles only
R7-112b 2 hr parking electric vehicles only
R7-113 2 hr parking exempt while charging (with arrow)
R7-113aP Vehicle must be plugged in (plaque)
R7-113bP Vacate stall when charging completed (plaque)
R7-114 2 hr vehicles charging only
R7-114a 45 min vehicle charging only
R7-114b 45 min vehicle charging only
R7-200 No parking and one hour parking time (combined horizontal)
R7-200a No parking and one hour parking time (combined vertical)
R7-201P Tow away zone
R7-201aP Tow away zone (plaque, red)
R7-202P This side of sign (plaque, red)
R7-202aTP (RED) Between signs (plaque, red)
R7-202aTP (GRN) Between signs (plaque, green)
R7-202bTP (GRN) Here to corner (plaque, green)
R7-202bTP (RED) Here to corner (plaque, red)
R7-203 Emergency snow route
R8 series: Parking and emergency restrictions
The MUTCD's R8 series of signs is for parking restriction and emergency restriction signs.
R8-1 No parking on pavement
R8-1aT No parking on bridge
R8-1bT No parking on row
R8-1cT No parking on tracks
R8-1dT No parking on shoulder
R8-2 No parking except on shoulder
R8-2T No parking within 10 feet of pavement
R8-3 No parking
R8-3aTDBL No parking (double)
R8-3aTR No parking (left)
R8-3aTL No parking (right)
R8-3bP Exception of Sundays and holidays
R8-3gP Loading zone
R8-3iTP On shoulder
R8-3kT No truck parking
R8-4 Emergency parking only
R8-5 No stopping on pavement
R8-6 No stopping except on shoulder
R8-7 Emergency stopping only
R8-8 Do not stop on tracks
R8-9 Tracks out of service
R8-10 Stop here when flashing
R8-10a Stop here when flashing
R9 series: Bicycles and pedestrians
The MUTCD's R9 series of signs is for bicycle and pedestrian signs.
R9-1 Walk on left facing traffic
R9-2 Cross only at cross walks
R9-3 No pedestrians crossing (symbol)
R9-3a No pedestrians crossing
R9-3b Use crosswalk (plaque)
R9-4 No hitchhiking (symbol)
R9-4a No hitchhiking
R9-5 Use ped signal
R9-5 Yield to peds
R9-7 Bicycles left pedestrians right
R9-8 Pedestrian crosswalk
R9-9 Sidewalk closed
R9-10 Sidewalk closed, use other side
R9-11 Use other side ahead, cross here
R9-11a Sidewalk closed, cross here
R9-13 No skaters
R9-14 No equestrians
R10 series: Traffic signal
The MUTCD's R10 series of signs is for traffic signal related signs.
R10-1 Cross only on green
R10-2 Cross only on pedestrian signal
R10-3 Push button for walk signal
R10-3a Push button to cross street, wait for pedestrian signal
R10-3b Crosswalk signal instructions
R10-3c Crosswalk signal instructions
R10-3d Crosswalk signal instructions
R10-3e Crosswalk signal instructions
R10-3f Crosswalk signal instructions
R10-3g Crosswalk signal instructions
R10-3h Crosswalk signal instructions
R10-3i Crosswalk signal instructions
R10-4 Push button for green
R10-4a Push button to cross street, wait for green
R10-4b Pedestrian signal
R10-5 Left on green arrow only
R10-6 Stop here on red
R10-6a Stop here on red (alternate)
R10-7 Do not block intersection
R10-8 Use lane with green arrow
R10-9T Protected left on green arrow
R10-10L Left turn signal
R10-10R Right turn signal
R10-11 No turn on red
R10-11a No turn on circular red
R10-11T No right turn on red
R10-12 Left turn yield on green
R10-12a Left turn yield on flashing yellow arrow
R10-12b Left turn yield to bicycle
R10-13 Emergency signal
R10-14T Emergency signal - stop when flashing red
R10-14aT Emergency signal - stop when flashing red
R10-14b Stop here on flashing red
R10-15 Turning vehicles yield to pedestrians
R10-15a Turning vehicles stop to pedestrians
R10-16 U-turn yield to right turn
R10-17T Left turn yield on flashing yellow arrow
R10-17a Right on red arrow after stop
R10-18a Traffic signal photo enforced
R10-20aP Days & times (plaque) (for use with R10-11 series) (2 lines)
R10-20aP Days & times (plaque) (for use with R10-11 series) (3 lines)
R10-22 Bicycles to request green wait on line
R10-23 Crosswalk - stop on red
R10-25 Push button to turn on warning lights
R10-26 Push button for green light
R10-27 Left turn yield on flashing red arrow after stop
R10-28 XX vehicles per green
R10-29 XX vehicles per green each lane
R10-30 Right turn on red must yield to U-turn
R10-31P At signal (plaque)
R10-32P Push button for 2 seconds for extra crossing time
R11 series: Road closed
The MUTCD's R11 series of signs is for road closure-related signs.
R11-1 Keep off median
R11-2 Road closed
R11-2aT Bridge closed
R11-2bT Ramp closed
R11-2cT Street ramp closed
R11-2c Path closed
R11-3 Road closed XX miles ahead, local traffic only
R11-3a Street closed XX miles ahead, local traffic only
R11-3b Bridge out XX miles ahead, local traffic only
R11-4 Road closed to thru traffic
R11-5aT High water road closed (folding sign)
R11-5bT High water road closed when flashing
R12 series: Weight limits
The MUTCD's R12 series of signs is for weight limit-related signs.
R12-1T Weight limit
R12-2 Axle weight limit
R12-2bT Weight limit, axle or tandem XX lbs
R12-2cT Weight limit, tandem axle XX lbs
R12-3 Truck weight limit
R12-4 Weight limit with per axle and gross
R12-4aT Weight limit, axle XX lbs, tandem XX lbs
R12-4bT Weight limit, gross XX lbs, axle or tandem XX lbs
R12-4cT Weight limit, gross XX lbs, tandem axle XX lbs
R12-8aT Weight limit
R12-8bT Weight limit
R12-8cT Weight limit
R12-9T Width limit 8 feet
R12-9aT Width limit 8 ft 6 in
R13 series: Weigh stations
The MUTCD's R13 series of signs is for
weigh station related signs.
R13-1T All commercial vehicles & buses next right when flashing
R13-1TPR All trucks next right
R13-1TPL All trucks next left
R13-1aT All trucks must stop ahead (folding sign)
R13-1bT Trucks-buses must stop ahead (folding sign)
R13-1cT All trucks next right when flashing
R13-2T All vehicles must stop ahead when flashing
R13-3T Use low beams
R13-7T Livestock poultry - exotics inspection station next right
R13-7aTP Open station (folding plaque)
R14 series: Truck routes
The MUTCD's R14 series of signs is for
truck route-related signs.
R14-1 Truck route sign
R14-2 Hazardous material route
R14-3 Hazardous material prohibited
R14-6T (HM) Must follow (route shields)
R15 series: Rail and light rail
The MUTCD's R15 series of signs is for rail- and light rail-related signs.
Warning signs are found in the W series of the national MUTCD. They highlight existing conditions, such as a curve, school, dead end street, or traffic signal. They can also warn of possible danger such as bumps, bicycles, low flying aircraft, or emergency vehicles. They are either yellow or fluorescent yellow in color and, with a few exceptions, are usually diamond-shaped and sometimes have square or rectangular smaller signs or plaques associated with them. Most W series signs can also be found with orange backgrounds for temporary use in situations such as construction zones. Some of the temporary-use signs are for use only in temporary situations.
W1 series: Horizontal alignment
The MUTCD's W1 series of signs is for warning signs relating to horizontal alignment.
W1-1R Turn (right)
W1-1L Turn (left)
W1-1aR Turn with speed advisory (right)
W1-1aL Turn with speed advisory (left)
W1-2R Curve (right)
W1-2L Curve (left)
W1-3R Reverse turn (right)
W1-3L Reverse turn (left)
W1-4R Reverse curve (right)
W1-4L Reverse curve (right)
CW1-4R Single lane shift (left to right)
CW1-4L Single lane shift (right to left)
CW1-4bR Double lane shift (left to right)
CW1-4bL Double lane shift (right to left)
CW1-4cR Triple lane shift (left to right)
CW1-4cL Triple lane shift (right to left)
W1-5R Winding road (right)
W1-5L Winding road (left)
W1-6R Arrow (right)
W1-6L Arrow (left)
W1-7 Two-direction large arrow
W1-7T Chevron/two direction large arrow
W1-8R Chevron (right)
W1-8L Chevron (left)
W1-9TL Chevron/one direction large arrow
W1-9TR Chevron/one direction large arrow
W1-10R Curve with side road (right)
W1-10L Curve with side road (left)
W1-10aR Intersection in curve (right)
W1-10aL Intersection in curve (left)
W1-10bR Intersection in curve (right)
W1-10bL Intersection in curve (left)
W1-10cR Intersection in curve (right)
W1-10cL Intersection in curve (left)
W1-10dR Intersection in curve (right)
W1-10dL Intersection in curve (left)
W1-10eR Intersection in curve (right)
W1-10eL Intersection in curve (left)
W1-11R Hairpin curve (right)
W1-11L Hairpin curve (left)
W1-11T Curve blocks view
W1-13R Truck rollover warning (right)
W1-13L Truck rollover warning (left)
W1-15R 270 degree loop curve (right)
W1-15L 270 degree loop curve (left)
W2 series: Intersections
The MUTCD's W2 series of signs is for warning signs relating to intersections.
The MUTCD's W8 series of signs is for warning signs relating to pavement and roadway conditions.
W8-1 Bump
W8-2 Dip
W8-3 Pavement ends
W8-4 Soft shoulder
W8-5aT Slow down on wet ahead
W8-5P When wet (plaque)
W8-5aP Ice (plaque)
W8-5bP Steel deck (plaque)
W8-5cP Excess oil (plaque)
W8-6 Truck crossing
W8-7 Loose gravel
W8-7aT Loose sand
W8-8 Rough road
W8-9 Low shoulder
W8-9aT Shoulder drop off
W8-10 Bicycle slippery when wet ahead
W8-10P slippery when wet (plaque)
W8-11 Uneven lanes
W8-12 No center line
W8-14 Fallen rocks
W8-15 Grooved pavement
W8-15P Motorcycle (plaque)
W8-16 Metal bridge deck
W8-17R Shoulder drop-off
W8-17R Shoulder drop-off
W8-17P Shoulder drop-off (plaque)
W8-18 Road may flood
W8-18aT Water crossing
W8-18bT When flooded turn around, don't drown
W8-19 Flood gauge
W8-21 Gusty winds area
W8-22 Fog area
W8-23 No shoulder ahead
W8-25 Shoulder ends
W9 series: Lane transitions
The MUTCD's W9 series of signs is for warning signs relating to lane transitions.
W9-1R Right lane ends
W9-1L Left lane ends
W9-2R Lane ends merge right
W9-2L Lane ends merge left
CW9-3L Center lane closed ahead (text sign used from 2000 to 2023)
CW9-3L Center lane closed ahead (symbol sign used since 2023)
W10 series: Railroad crossings
The MUTCD's W10 series of signs is for warning signs relating to railroad crossings.
W10-1 Railroad crossing ahead
W10-1aP Exempt (plaque)
W10-2R Crossroads with parallel tracks (right)
W10-2L Crossroads with parallel tracks (left)
W10-3R Side road with parallel tracks (right)
W10-3L Side road with parallel tracks (left)
W10-4R T intersection with parallel tracks (right)
W10-4L T intersection with parallel tracks (left)
W10-5 Train when flashing
W10-5P Low ground clearance plaque
W10-7 Light rail activated sign
W10-8 Trains may exceed XX mph
W10-9 No train horn warning
W10-9P No train horn plaque
W10-11 Storage space symbol
W10-11a XX feet between tracks and highway
W10-11b XX feet between highway and tracks behind you
W10-12R Skewed crossing ahead
W10-13P No gates or lights (plaque)
W10-14P Next crossing (plaque)
W10-14aP Use next crossing (plaque)
W10-15P Rough crossing (plaque)
W11 series: Advance warnings
The MUTCD's W11 series of signs is for warning signs relating to advance warnings. The MUTCD allows use of a fluorescent yellow-green background color for signs relating to non-motorized vehicles crossing the road.[7]
The MUTCD's W12 series of signs is for warning signs relating to low clearance.
W12-1 Double arrow
W12-2 Low clearance
W12-2TP Low clearance (plaque)
W12-2a Sign displays height of bridge
W12-3TP Downward arrow (plaque)
W12-4T Low clearance 10 miles ahead
W12-5T Load zoned bridge
W13 series: Advisory speeds
The MUTCD's W13 series of signs is for warning signs relating to advisory speeds. Speed limits in the United States are always in miles per hour.
W13-1P Speed advisory
W13-2 Exit speed advisory
W13-3 Ramp speed advisory
W13-6 Exit speed advisory (270 degree loop curve)
W13-7 Ramp speed advisory (270 degree loop curve)
W13-8T XX mph when flashing
W14 series: Dead end streets and no passing zones
The MUTCD's W14 series of signs is for warning signs relating to dead-end streets and no-passing zones. As all situations are not covered, several states and local governments have additional signs for other types of situations not covered by the MUTCD.
W14-1 Dead end
W14-1T Road ends
W14-1aR Dead end on the right
W14-1aL Dead end on the left
W14-2 No outlet
W14-2aR No outlet on the right
W14-2aL No outlet on the left
W14-3 No passing zone
W15 series: Playgrounds
The MUTCD's W15 series of signs is for warning signs relating to playgrounds.
The MUTCD's W19 series of signs is for warning signs relating to the end of a freeway or expressway.
W19-1 Freeway ends XX mile
W19-3 Freeway ends
W19-5 All traffic must exit
W20 series: Work zones
The MUTCD's W20 series of signs is for warning signs relating to work zones. These signs are typically orange background ones used for temporary situations.
G20-1 Road work next XX miles
G20-2 End road work
G20-5aP Work zone plaque (usually under an R2 speed limit sign)
CW20-1 Road work XXXX feet ahead
CW20-3 Road closed ahead
CW20-3 Road is closed XXXX feet ahead
M4-8a End detour
M4-8b End (if a road work blocked road)
M4-9R Detour (right)
M4-9L Detour (left)
CW20-7 Flagger ahead
W21 series: Road work
The MUTCD's W21 series of signs is for warning signs relating to road work. They typically have orange backgrounds and are used for temporary situations. As all situations are not covered, several states have their own standards in addition to the MUTCD.
CW20-4 One lane road XXXX feet ahead
CW3-4 Be prepared to stop
CW21-1 Men working
CW21-2 Fresh oil
CW21-7 Utility work ahead
W22 series: Blasting zones
The MUTCD's W22 series of signs is for warning signs relating to blasting zones. They typically have orange backgrounds and are used for temporary situations.
CW22-1 Blasting zone ahead
R22-2 Turn off 2-way radios and cell phones
CW22-3 End blasting zone
W23 series: Slow traffic
The MUTCD's W23 series of signs is for warning signs relating to slow traffic. They typically have orange backgrounds and are used for temporary situations.
CW23-1 Slow traffic ahead
CW23-2 New traffic pattern ahead
W24 series: Lane shifts
The MUTCD's W24 series of signs is for warning signs relating to lane shifts, where traffic is diverted slightly toward the left or right of the roadway, but the route is otherwise unchanged. These signs typically have orange background and are used for temporary situations.
CW24-1R Single reverse curve (right)
CW24-1L Single reverse curve (left)
CW24-aR Double reverse curve (right)
CW24-aL Double reverse curve (left)
CW24-1bL Triple reverse curve (right)
CW24-1bL Triple reverse curve (left)
CW24-1cP All lanes
W25 series: Oncoming traffic has extended green
The MUTCD's W25 series of signs is for signs warning that oncoming traffic has an extended green signal at a traffic light.
W25-1 Extended green
W25-2 Possible extended green
School zone signs
The S series of signs are specially designated by the MUTCD for use around schools. Some states have additional school warning-related signs in the S series, the W series of warning signs, and/or the R series of regulatory signs of the state supplement or state MUTCD. The adoption of the 2009 MUTCD required school warning signs to have fluorescent yellow-green backgrounds.[8]
S1-1 School zone ahead (also used for pedestrian crosswalks near schools) since 1998
S5-2 End school zone (usually under an R2 speed limit sign)
S5-2aTP End school zone (plaque)
S5-3 End school speed limit
S6-1T School speed limit when flashing (overhead)
S7-1T Cell phone use prohibited up to $200 fine (used with S5-1 sign)
W16-5PR Supplemental arrow to the right (plaque)
W16-5PL Supplemental arrow to the left (plaque)
W16-6PR Supplemental arrow to the right (plaque)
W16-6PL Supplemental arrow to the left (plaque)
W16-7PR Downward diagonal arrow to the right (plaque)
W16-7PL Downward diagonal arrow to the left (plaque)
W16-9P Ahead (plaque)
R1-6b In-street school crossing (within crosswalk)
Notes
^
abThe legend STATE LAW is optional. A fluorescent yellow-green color may be used instead of yellow for this sign.
^The diamond symbol may be used instead of the “HOV” word message. The minimum vehicle occupancy level may vary, such as 2+, 3+, 4+. The words “LANE” or “ONLY” may be used with this sign when appropriate.
^A fluorescent yellow-green background color may be used for this sign.[7]
^
abStaff (October 2011).
"Chapter 7: Parallel Parking". Driver's Manual and Study Guide. New York State Department of Motor Vehicles. Retrieved March 16, 2012.
Road signs in the US states by the adoption of
MUTCD (2009 edition)
This template lists only US states that have adopted the 2009 edition of MUTCD with their own supplements and states that have adopted their own versions of MUTCD