MUTCD/W

Series W of the MUTCD is for warning signs.

W1: Curves and Turns‎

Designation	Name	Tags	Notes
W1-1	Turn	`hazard=turn`
W1-1a	Combination Horizontal Alignment/Advisory Speed	`hazard=turn` `maxspeed:advisory=25 mph`
W1-2	Curve	`hazard=curve`
W1-2a	Combination Horizontal Alignment/Advisory Speed	`hazard=curve` `maxspeed:advisory=35 mph`
W1-3	Reverse Turn	`hazard=turns`
W1-4	Reverse Curve	`hazard=curves` `curves=serpentine`
W1-5	Winding Road	`hazard=curves` `curves=extended`
W1-6	One-Direction Large Arrow	`hazard=turn`
W1-7	Two-Direction Large Arrow	`hazard=dangerous_junction`
W1-8	Chevron Alignment	`hazard=curve`
W1-10	Combination Horizontal Alignment/Intersection	`hazard=curve;dangerous_junction`
W1-10a	Combination Horizontal Alignment/Intersection	`hazard=curve;dangerous_junction`
W1-10b	Combination Horizontal Alignment/Intersection	`hazard=curve;dangerous_junction`
W1-10c	Combination Horizontal Alignment/Intersection	`hazard=curve;dangerous_junction`
W1-10d	Combination Horizontal Alignment/Intersection	`hazard=curves;dangerous_junction` `curves=serpentine`
W1-10e	Combination Horizontal Alignment/Intersection	`hazard=curves;dangerous_junction` `curves=serpentine`
W1-11	Hairpin Curve	`hazard=curve` `curve=hairpin`
W1-13	Truck Rollover	`hazard:hgv=rollover`	Speculative
W1-15	270-degree Loop	`hazard=curve` `curve=loop`

W2: Intersections‎

Designation	Name	Tags
W2-1	Intersection Warning	`hazard=dangerous_junction`
W2-2	Intersection Warning	`hazard=dangerous_junction`
W2-3	Intersection Warning	`hazard=dangerous_junction`
W2-4	T-intersection	`hazard=dangerous_junction`
W2-5	Intersection Warning	`hazard=dangerous_junction`
W2-6	Circular Intersection	`hazard=roundabout` `junction=roundabout`
W2-7	Offset Side Roads	`hazard=dangerous_junction`
W2-8	Double Side Roads	`hazard=dangerous_junction`

W3: Advance Traffic Control‎

Designation	Name	Tags	Notes
W3-1	Advanced Traffic Control	`hazard=stop` `highway=stop` ahead	Speculative
W3-2	Advanced Traffic Control	`hazard=give_way` `highway=give_way` ahead	Speculative
W3-3	Advanced Traffic Control	`hazard=traffic_signals` `highway=traffic_signals` ahead
W3-4	Be Prepared to Stop	`hazard=queues_likely`
W3-5	Reduced Speed Limit Ahead	`hazard=maxspeed` `maxspeed=45 mph` ahead	Speculative
W3-5a	XX MPH Speed Zone Ahead	`hazard=maxspeed` `maxspeed=45 mph` ahead	Speculative
W3-6	Draw Bridge	`hazard=queues_likely` `bridge=movable` ahead
W3-7	Ramp Meter Ahead	`hazard=traffic_signals` `highway=traffic_signals` `traffic_signals=ramp_meter` ahead
W3-8	Ramp Metered When Flashing	`hazard=traffic_signals` `highway=traffic_signals` `traffic_signals=ramp_meter` ahead

W4: Lanes and Merges‎

Designation	Name	Tags	Notes
W4-1	Merge	`hazard=merge`	Speculative
W4-2	Lane Ends	`hazard=merge` `turn:lanes=merge_to_left` `change:lanes=yes`	Speculative
W4-3	Added Lane	`hazard=acceleration_lane` `lanes=*`	Speculative
W4-4P	Cross Traffic Does Not Stop (plaque)	`hazard=dangerous_crossing` `highway=stop` `stop=minor`
W4-4aP	Traffic From Left (Right) Does Not Stop (plaque)	`hazard=dangerous_crossing` `highway=stop` `stop=minor`
W4-4bP	Oncoming Traffic Does Not Stop (plaque)	`hazard=dangerous_crossing` `highway=stop` `stop=minor`
W4-5	Entering Roadway Merge	`hazard=merge`	Speculative
W4-5P	No Merge Area (plaque)	`hazard=no_acceleration_lane`
W4-6	Entering Roadway Added Lane	`hazard=acceleration_lane` `lanes=*`	Speculative

W5: Road Width Restrictions‎

Designation	Name	Tags
W5-1	Road Narrows	`hazard=road_narrows` `narrow=yes` ahead
W5-2	Narrow Bridge	`narrow=yes` on bridge
W5-3	One Lane Bridge	`lanes=1` on bridge
W5-4a	Path Narrows	`hazard=road_narrows` `narrow=yes` ahead

W6: Divided Highways‎

Designation	Name	Tags
W6-1	Divided Highway	`dual_carriageway=yes`
W6-2	Divided Highway Ends	`dual_carriageway=no`
W6-3	Two-Way Traffic	`oneway=no`

W7: Hills and Grades‎

Designation	Name	Tags
W7-1	Hill	`incline=down`
W7-1a	Hill with Grade	`incline=-8%`
W7-2P	Use Low Gear (plaque)	?
W7-2bP	Trucks Use Lower Gear (plaque)	?
W7-3P	XX% Grade (plaque)	`incline=-9%`
W7-3aP	Next XX Miles (plaque)	`incline=*` for 7 miles
W7-3bP	XX% Grade, XX Miles (plaque)	`incline=-9%` for 7 miles
W7-4	Runaway Truck Ramp XX Miles	`highway=escape` 1 mile ahead
W7-4b	Runaway Truck Ramp (with arrow)	`highway=escape` 1 mile ahead
W7-4c	Truck Escape Ramp	`highway=escape`
W7-4dP	Sand (plaque)	`surface=sand`
W7-4eP	Gravel (plaque)	`surface=gravel`
W7-4fP	Paved (plaque)	`surface=paved`
W7-6	Hill Blocks View	?

W8: Pavement and Roadway Conditions‎

Designation	Name	Tags	Notes
W8-1	Bump	`traffic_calming=bump` `hazard=bump`
W8-2	Dip	`traffic_calming=dip` `hazard=dip`
W8-3	Pavement Ends	`surface=unpaved`
W8-4	Soft Shoulder	`shoulder:surface=unpaved`
W8-5	Slippery When Wet	`hazard=slippery`
W8-5,W8-5P	Slippery When Wet	`hazard:wet=slippery`
W8-5,W8-5aP	Slippery (Ice)	`hazard=slippery;ice`
W8-5,W8-5bP	Slippery (Steel Deck)	`hazard=slippery;metal_bridge_deck` `surface=steel`
W8-5,W8-5cP	Slippery (Excess Oil)	`hazard=slippery` `surface=chipseal`
W8-6	Truck Crossing	`hazard=hgv_crossing` `hgv=designated` on cross street	Speculative
W8-7	Loose Gravel	`hazard=loose_gravel` `surface=gravel`
W8-8	Rough Road	`hazard=rough_road` `smoothness=*`
W8-9	Low Shoulder	?
W8-10	Bicycle Surface Condition	`hazard=slippery` `surface=*`
W8-10P	Slippery When Wet (plaque)	`hazard=slippery` `surface=*`
W8-11	Uneven Lanes	?
W8-12	No Center Line	`lane_markings=no`
W8-13	Bridge Ices Before Road	`hazard=ice` on bridge
W8-14	Fallen Rocks	`hazard=falling_rocks`
W8-15	Grooved Pavement	`surface=grooved_asphalt` `hazard=grooves`	Speculative
W8-15,W8-15P	Grooved Pavement (Motorcycle)	`surface=grooved_asphalt` `hazard:motorcycle=grooves`	Speculative
W8-16	Metal Bridge Deck	`surface=metal` `hazard=metal_bridge_deck` on the bridge	Speculative
W8-16,W8-15P	Metal Bridge Deck (Motorcycle)	`surface=metal` `hazard:motorcycle=metal_bridge_deck` on the bridge	Speculative
W8-17	Shoulder Drop Off (symbol)	?
W8-17P	Shoulder Drop-Off (plaque)	?
W8-18	Road May Flood	`flood_prone=yes`
W8-19	Flood Gauge	`man_made=monitoring_station` `monitoring:water_level=yes` `display:analog=yes` `recording:manually=yes`
W8-21	Gusty Winds Area	`hazard=side_winds`
W8-22	Fog Area	`hazard=fog`	Speculative
W8-23	No Shoulder	`shoulder=no`
W8-25	Shoulder Ends	`shoulder=no`

W9: Lane Transitions‎

Designation	Name	Tags
W9-1	Left (Right) Lane Ends	`hazard=lane_changing`
W9-2	Lane Ends Merge Left (Right)	`turn:lanes=merge_to_left` `change:lanes=yes`
W9-6	Pay Toll XX Miles Cars (price)	`barrier=toll_booth` `charge:motorcar=0.75 USD` 1 mile ahead `toll=yes` from 1 mile ahead
W9-6P	Pay Toll XX Miles Cars (price) (plaque)	`barrier=toll_booth` `charge:motorcar=0.75 USD` 1 mile ahead `toll=yes` from 1 mile ahead
W9-6a	Stop Ahead Pay Toll Cars (price)	`barrier=toll_booth` `charge:motorcar=0.75 USD` 1 mile ahead `toll=yes` from up ahead
W9-6aP	Stop Ahead Pay Toll (plaque)	`barrier=toll_booth` 1 mile ahead `toll=yes` from up ahead
W9-7	Right (Left) Lane Exit Only Ahead	`turn:lanes=slight_left` `change:lanes=yes` `highway=motorway_junction` ahead

W10: Rail and Light Rail‎

Designation	Name	Tags	Notes
W10-1	Grade Crossing Advance Warning	`hazard=level_crossing` `railway=level_crossing` ahead
W10-1aP	Exempt (plaque)	?
W10-2	Grade Crossing and Intersection Advance Warning	`hazard=level_crossing;dangerous_junction` `railway=level_crossing` nearby
W10-3	Grade Crossing and Intersection Advance Warning	`hazard=level_crossing;dangerous_junction` `railway=level_crossing` nearby
W10-4	Grade Crossing and Intersection Advance Warning	`hazard=level_crossing;dangerous_junction` `railway=level_crossing` ahead
W10-5	Low Ground Clearance	`hazard=ground_clearance`
W10-5P	Low Ground Clearance (plaque)	`hazard=ground_clearance`
W10-7	Light Rail Activated Blank-Out Symbol	?
W10-8	Trains May Exceed 80 MPH	`maxspeed=*` on the railroad tracks	`highspeed=yes` if 124 miles per hour (200 km/h) or higher
W10-9	No Train Horn	?	See Proposed features/Level crossing train horn usage
W10-9P	No Train Horn (plaque)	?	See Proposed features/Level crossing train horn usage
W10-11	Storage Space Symbol	?
W10-11a	Storage Space XX Feet Between Tracks & Highway	?
W10-11b	Storage Space XX Feet Between Highway & Tracks Behind You	?
W10-12	Skewed Crossing	?
W10-13P	No Gates or Lights (plaque)	`railway=level_crossing` `crossing:barrier=no` `crossing:light=no`
W10-14P	Next Crossing (plaque)	N/A
W10-14aP	Use Next Crossing (plaque)	N/A
W10-15P	Rough Crossing (plaque)	`railway=level_crossing` `smoothness=*`

W11: Advance Warnings and Crossings‎

Designation	Name	Tags	Notes
W11-1	Bicycle	`hazard=cyclists` `crossing=*` `bicycle=designated`
W11-2	Pedestrian	`hazard=pedestrians` `crossing=*` `foot=designated`
W11-3	Deer	`hazard=animal_crossing` `hazard:animal=deer`
W11-4	Cow	`hazard=animal_crossing` `hazard:animal=cow`
W11-5	Farm Vehicle	`hazard=agricultural_vehicles`
W11-5a	Farm Vehicle	`hazard=agricultural_vehicles` `agricultural=designated`
W11-6	Snowmobile	`hazard=snowmobile`
W11-7	Equestrian	`hazard=horse_riders` `crossing=*` `horse=designated`
W11-8	Emergency Vehicle	`hazard=emergency_vehicles` `emergency=designated` on cross street
W11-9	Handicapped	`hazard=wheelchair` `crossing=*` `wheelchair=designated`	Speculative
W11-10	Truck	`hazard=hgv` `hgv=designated` on cross street
W11-11	Golf Cart	`hazard=golf_cart` `crossing=*` `golf_cart=designated`
W11-12P	Emergency Signal Ahead (plaque)	`hazard=traffic_signals` `highway=traffic_signals` `traffic_signals=emergency` ahead
W11-14	Horse-Drawn Vehicle	`hazard=carriage` `carriage=designated`
W11-15	Bicycle / Pedestrian	`hazard=cyclists;pedestrians` `crossing=*` `bicycle=designated` `foot=designated`
W11-15a	Trail Crossing	`hazard=cyclists;pedestrians` `crossing=*` `bicycle=designated` `foot=designated`
W11-15P	Trail Crossing	`hazard=cyclists;pedestrians` `crossing=*` `bicycle=designated` `foot=designated`
W11-16	Bear	`hazard=animal_crossing` `hazard:animal=bear`
W11-17	Sheep	`hazard=animal_crossing` `hazard:animal=sheep`
W11-18	Bighorn Sheep	`hazard=animal_crossing` `hazard:animal=bighorn_sheep`	Speculative
W11-19	Donkey	`hazard=animal_crossing` `hazard:animal=donkey`	Speculative
W11-20	Elk	`hazard=animal_crossing` `hazard:animal=elk`	Speculative
W11-21	Moose	`hazard=animal_crossing` `hazard:animal=moose`
W11-22	Wild Horse	`hazard=animal_crossing` `hazard:animal=wild_horse`	Speculative

W12: Low Clearance‎

Designation	Name	Tags	Notes
W12-1	Double Arrow	N/A	Map each side as a separate way
W12-2	Low Clearance (with arrows)	`maxheight=12'6"` ahead
W12-2a	Low Clearance	`maxheight=14'4"` on the roadway below

W13: Advisory Speeds‎

Designation	Name	Tags	Notes
W13-1P	Advisory Speed (plaque)	`maxspeed:advisory=35 mph`
W13-2	Advisory Exit Speed	`highway=*_link` `maxspeed:advisory=25 mph`
W13-3	Advisory Ramp Speed	`highway=*_link` `maxspeed:advisory=35 mph`
W13-6	Combination Horizontal Alignment/Advisory Exit Speed	`hazard=loop` `highway=*_link` `maxspeed:advisory=25 mph`	Speculative
W13-7	Combination Horizontal Alignment/Advisory Ramp Speed	`hazard=loop` `highway=*_link` `maxspeed:advisory=25 mph`	Speculative

W14: Dead End Streets and No Passing Zones‎

Designation	Name	Tags
W14-1	Dead End	N/A
W14-1a	Dead End (with arrow)	N/A
W14-2	No Outlet	N/A
W14-2a	No Outlet (with arrow)	N/A
W14-3	No Passing Zone (pennant)	`overtaking=no`

W15: Playground

Sign or plaque	Designation	Name	Tags	Notes
	W15-1	Playground	`hazard=children` `leisure=playground` nearby

W16: Supplemental

Sign or plaque	Designation	Name	Tags
	W16-1P	Share the Road (plaque)	`cycleway=shared_lane` `bicycle=designated` or `carriage=designated`
	W16-2P	XX Feet	`distance=500'` on the traffic sign
	W16-2aP	XX Ft	`distance=500'` on the traffic sign
	W16-3P	XX Miles (2-line plaque)	`distance=2 mi` on the traffic sign
	W16-3aP	XX Miles (1-line plaque)	`distance=2 mi` on the traffic sign
	W16-4P	Next XX Feet (plaque)	`distance=500'` on the traffic sign
	W16-5P	Supplemental Arrow (plaque)	N/A
	W16-6P	Supplemental Arrow (plaque)	N/A
	W16-7P	Downward Diagonal Arrow (plaque)	N/A
	W16-8P	Advance Street Name (1-line plaque)	`name=1st Street` on cross street
	W16-8aP	Advance Street Name (2-line plaque)	`name=Elm Street` on cross street at left `name=Lumsden Road` on cross street at right
	W16-9P	Ahead (plaque)	N/A
	W16-10P	Photo Enforced (symbol plaque)	`type=enforcement` `highway=speed_camera` or `man_made=surveillance` `surveillance:type=camera` `surveillance:zone=traffic`
	W16-10aP	Photo Enforced (plaque)	`type=enforcement` `highway=speed_camera` or `man_made=surveillance` `surveillance:type=camera` `surveillance:zone=traffic`
	W16-11P	HOV (plaque)	`hov=designated`
	W16-12P	Traffic Circle (plaque)	`hazard=roundabout` `junction=roundabout`
	W16-13P	When Flashing (plaque)	?
	W16-15P	New (plaque)	?
File:MUTCD W16-16PL.svg	W16-16P	Last Exit Before Toll (plaque)	`toll=yes` after the exit
	W16-17P	Roundabout (plaque)	`hazard=roundabout` `junction=roundabout`
	W16-18P	NOTICE	?

W17: Speed Hump‎

Sign or plaque	Designation	Name	Tags	Notes
	W17-1	Speed Hump	`traffic_calming=hump`

W18: No Traffic Signs‎

Sign or plaque	Designation	Name	Tags	Notes
	W18-1	No Traffic Signs	?

W19: End of Controlled Access Highway‎

Designation	Name	Tags
W19-1	Freeway Ends XX Miles	End `highway=motorway` in 1 mile
W19-2	Expressway Ends XX Miles	End `highway=trunk` in 1 mile
W19-3	Freeway Ends	End `highway=motorway` at this point
W19-4	Expressway Ends	End `highway=trunk` at this point
W19-5	All Traffic Must Exit	`highway=construction` or `highway=proposed` ahead

W23: Slow Traffic‎

Sign or plaque	Designation	Name	Tags	Notes
	W23-2	New Traffic Pattern Ahead	N/A	Remap roads ahead using newest available imagery

W25: Oncoming Traffic Has Extended Green‎

Sign or plaque	Designation	Name	Tags	Notes
	W25-1	Traffic Signal Extended Green	?

W26: Last in Corridor

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD W26-1.svg	W26-1	Last in Corridor	?

External links

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