Warning

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Code Description Page SVG on Commons Notes
W1-1R Turn 2-1
W1-1a R Turn (English)/Turn (Metric) 2-2 W1-1 with speed
W1-2 Curve 2-3
W1-2a R Curve (English)/Curve (Metric) 2-3 W1-2a with speed
W1-3 R Reverse Turn 2-4
W1-4 R Reverse Curve 2-5
W1-5 R Winding Road 2-6 the "dancing arrow"
W1-6 R One Direction Large Arrow 2-7
W1-7 Two Direction Large Arrow 2-8
W1-8 Chevron Alignment 2-9
W1-10 R Horizontal Alignment 2-10 a Curve with a stub continuing from the curve
W1-11 Hairpin Curve 2-11 180-degree arrow
W1-13 Truck Rollover 2-12
W1-15 270-Degree Loop 2-13
W2-1 Cross Road 2-14
W2-2 R Cross Road 2-15 Actually more of a side road
W2-3 R Side Road 2-16 At a 45 degree angle
W2-4 T-Symbol 2-17
W2-5 Y-Symbol 2-18
W2-6 Circular Intersection 2-19
W3-1 Stop Ahead 2-20 Used in Warning signs
W3-1a Stop Ahead 2-21 Text
W3-2 Yield Ahead 2-22
W3-2a Yield Ahead 2-23 Text
W3-3 Signal Ahead 2-24 Used in Warning signs
W3-3a Signal Ahead 2-25 Text
W3-4 Be Prepared To Stop 2-26 Orange!
W3-5 Speed Reduction 2-27
W3-5a Speed Reduction 2-28 Text
W3-6 Draw Bridge Ahead 2-29


W4-1 R Merge 2-30 Used in Warning signs
W4-2 R Lane Ends 2-31
W4-3 R Added Lane 2-32
W4-4 Cross Traffic Does Not Stop 2-33
W4-4a Traffic From Left Does Not Stop 2-33
W4-4b Oncoming Traffic Does Not Stop 2-33
W4-5 Entering Roadway Merge 2-34
W4-6 Entering Roadway Added Lane 2-35
W5-1 Road Narrows 2-36
W5-2 Narrow Bridge 2-37
W5-3 One Lane Bridge 2-38
W5-4 Ramp Narrows 2-39
W5-5 Bikeway Narrows 2-40
W6-1 Divided Highway 2-41 Used in Warning sign
W6-1a Divided Highway 2-42 Text
W6-1b Divided Road 2-43 Text
W6-2 Divided Highway Ends 2-42
W6-2a Divided Highway Ends 2-43 Text
W6-2b Divided Road Ends 2-44 Text
W6-3 Two Way Traffic 2-47 Used in Warning sign
W7-1 Hill 2-48 Used in Warning sign
W7-1a Hill 2-49 Text
W7-1b Hill 2-50 Includes grade percentage
W7-2 Hill Plaque 2-51 "USE LOW GEAR"
W7-2a Hill Plaque 2-51 "TRUCKS USE LOWER GEAR"
W7-3 Hill Plaque 2-52 "9% GRADE"
W7-3a Hill Plaque 2-52 "NEXT 7 MILES"
W7-3b Hill Plaque 2-52 "9% GRADE 7 MILES"
W7-3a
Metric
Hill Plaque 2-53 "NEXT 11 km"
W7-3b
Metric
Hill Plaque 2-53 "9% GRADE 11 km"
W7-4 Truck Escape Ramp 2-54 "RUNAWAY TRUCK RAMP 1 MILE"
W7-4b Truck Escape Ramp 2-54 "RUNAWAY TRUCK RAMP ↗"
W7-4c Truck Escape Ramp 2-55 "TRUCK ESCAPE RAMP"
W7-4d Truck Escape Ramp Plaque 2-56 "SAND"
W7-4e Truck Escape Ramp Plaque 2-56 "GRAVEL"
W7-4f Truck Escape Ramp Plaque 2-56 "PAVED"
W7-5 Bicycle Hill Plaque 2-57
W7-5a 2-57 "HILL"
W7-6 Hill Blocks View 2-58
W8-1 Bump 2-59
W8-2 Dip 2-60
W8-3 Pavement Ends 2-61
W8-4 Soft Shoulder 2-62
W8-5 Slippery When Wet 2-63 Used in Warning sign
W8-6 Truck Crossing 2-64
W8-7 Loose Gravel 2-65 Orange!
W8-8 Loose Gravel 2-66 "ROUGH ROAD" (Orange!)
W8-9 Low Shoulder 2-67
W8-9a Shoulder Drop Off 2-68
W8-10 Bicycle Slippery When Wet 2-69
W8-10a Bicycle Slippery When Wet Plaque 2-69
W8-11 Uneven Lanes 2-70
W8-12 No Center Stripe 2-71 Orange!
W8-13 Bridge Ices Before Road 2-72
W9-1 Right Lane Ends 2-73
W9-1L Left Lane Ends 2-73
W9-2L Lane Ends Merge Left 2-74
W9-2R Lane Ends Merge Right 2-74
W9-3 Center Lane Closed Ahead 2-75 Orange!
W9-3L Left Lane Closed Ahead 2-75 Orange!
W9-3R Right Lane Closed Ahead 2-75 Orange!
W10-1 Highway-Rail Grade Crossing Advance Warning 2-76 Circle with crossbuck
Used in Warning sign
W10-2L Highway-Rail Grade Crossing Advance Warning 2-77 Crossroads with track
W10-2R Highway-Rail Grade Crossing Advance Warning 2-77 Crossroads with track
W10-3L Highway-Rail Grade Crossing Advance Warning 2-78 Side road with track
W10-3R Highway-Rail Grade Crossing Advance Warning 2-78 Side road with track
W10-4L Highway-Rail Grade Crossing Advance Warning 2-79 T with track
W10-4R Highway-Rail Grade Crossing Advance Warning 2-79 T with track
W10-5 Low Ground Clearance Highway-Rail Grade Crossing 2-80
W11-2 Pedestrian Traffic 2-92 Used in Warning sign
W13-1 Advisory Speed 2-108
W13-2 Advisory Exit Speed 2-110 Advisory Exit Speed English 25.svg
W13-3 Advisory Ramp Speed 2-112 Advisory Ramp Speed English 30.svg
W13-5 Advisory Curve Speed 2-114 Advisory Curve Speed English 25.svg Used in Warning sign
W14-1 Dead End 2-116 Dead End sign.svg

Guide

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Code Description Page SVG on Commons Notes
M1-1 Interstate Route 3-1 I-x.svg
M1-2 BUS Interstate Loop 3-2 Business Loop x.svg
M1-3 BUS Interstate Spur 3-3 Business Spur x.svg
M1-4 U.S. Route Marker For Independent Use 3-4 US x.svg
M1-5 State Route 3-6 Varies by state
M1-6 County Route 3-7 x County Route y.svg
M1-7 Forest Route 3-8 Forest Route x.svg
M1-8 Bicycle Route 3-9 US Bike 13 Alternate.svg
M1-9 Bicycle Route 3-10 US Bike 1.svg
US Bike 76.svg
National bike route shield
M1-10 Eisenhower Interstate System 3-11 Eisenhower Interstate System.svg
M1-10a Eisenhower Interstate System 3-12 Eisenhower Interstate System Alternate.svg Clarendon variant
M2-1 Junction Auxiliary 3-13 Jct plate.svg
M2-1 (Interstate) Junction Auxiliary 3-13 Jct plate blue.svg
M2-2 Combination Junction 3-13
M3-1 Cardinal Direction Auxiliary 3-14 North plate.svg North
M3-2 Cardinal Direction Auxiliary 3-14 East plate.svg East
M3-1 (INTERSTATE) Cardinal Direction Auxiliary 3-14 North plate blue.svg North
M3-2 (INTERSTATE) Cardinal Direction Auxiliary 3-14 East plate blue.svg East
M3-3 Cardinal Direction Auxiliary 3-15 South plate.svg South
M3-4 Cardinal Direction Auxiliary 3-15 West plate.svg West
M3-3 (INTERSTATE) Cardinal Direction Auxiliary 3-15 South plate blue.svg South
M3-4 (INTERSTATE) Cardinal Direction Auxiliary 3-15 West plate blue.svg West
M4-1 Alternate Auxiliary 3-16 Alternate plate.svg Alternate
M4-1a Alternate Auxiliary 3-16 Alt plate.svg Alt
M4-2 Bypass Auxiliary 3-16 By-pass plate.svg
M4-3 Bypass Auxiliary 3-16 Business plate.svg Business