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Road markingsUnited States

An introduction to the traffic rules and road signs of United States. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.

For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.

Traffic signs
Traffic rules
United States

42. Road markings

Road markings are lines, symbols, arrows, words or other markings applied to the road surface to regulate, guide or inform road users. They can separate traffic lanes and opposing directions, indicate where vehicles must stop or give way, mark pedestrian and cyclist crossings and identify areas reserved for particular road users.

Road users should observe the meaning of each road marking and combine it with the applicable traffic signs, signals and traffic rules. Colours, patterns and legal meanings can differ between countries.

Road markings
Route 66 road-surface marking near Amboy. (California, United States)
Wikimedia.org • Dietmar Rabich • CC BY-SA
Which road markings are important to recognise in the United States?

In the US system, yellow centre lines generally separate opposing traffic and white lane lines separate traffic travelling in the same direction. Their solid or broken form affects the permitted movements.

🔗 mutcd.fhwa.dot.gov • FHWA MUTCD11th Edition including Revision1 December2025 — relevant regulatory/warning/guide, marking and signal provisions

May drivers cross a solid road line in the United States?

The legal effect depends on whether the line is solid, double solid or broken, its colour, and the state or territory. Do not cross a prohibited no-passing or lane-control marking; look up permitted turning exceptions locally.

🔗 mutcd.fhwa.dot.gov • FHWA MUTCD11th Edition including Revision1 December2025 — relevant regulatory/warning/guide, marking and signal provisions

Can painted arrows or stop lines be ignored when signs are not obvious in the United States?

No. Lane arrows, stop lines and give-way markings can direct where to wait or which movement a lane permits. Read them together with traffic lights, vertical signs and directions from authorised traffic controllers; temporary changes may also apply.

🔗 mutcd.fhwa.dot.gov • FHWA MUTCD11th Edition including Revision1 December2025 — relevant regulatory/warning/guide, marking and signal provisions

1 United States 2 Motorway 3 Expressway 4 Speed limit 5 Minimum speed 6 Advisory speed 7 Bike path 8 Pedestrian warning 9 Tunnel 10 Bridge 11 Speed bump 12 Toll road 13 One-way traffic 14 Slope 15 Bus lane 16 Bus stop 17 Dead end 18 Stop sign 19 Give way 20 Roundabout 21 Road narrowing 22 Pedestrian crossing 23 Railway crossing 24 Mandatory direction 25 Turn prohibition 26 School area 27 Crossing animals 28 Slippery road 29 Rockfall 30 Aircraft 31 Curve 32 Chevron 33 Wrong-way driving 34 Roadworks 35 Height limit 36 Weight limit 37 Radar speed sign 38 Selective barriers 39 Traffic lights 40 Traffic lights warning 41 Pedestrian lights 42 Road markings 43 Bike box 44 Speed feedback 45 Driving licence 46 Traffic mirror 47 Emergency telephone 48 Cycling route 49 Parking 50 No parking 51 No stopping 52 Parallel parking 53 Park and ride 54 Kiss and ride 55 Disabled parking 56 Traffic management 57 Reversing 58 U-turn 59 Carpool 60 Detour 61 Uncontrolled crossroad 62 Ramp 63 Exit 64 Horse riding 65 Emergency exit 66 Runaway truck ramp 67 Oversize load 68 City limit 69 Tourist attraction 70 Horn 71 Axle weight limit 72 Licence plate 73 Charging station 74 Flooding 75 Dip 76 Horse 77 Local traffic 78 Pedestrian 79 Cyclist 80 Motorcycle 81 Truck 82 Bus 83 Police 84 Ambulance 85 Police signals 86 Gravel road 87 Pothole 88 Median strip 89 Public property 90 Path 91 Particulates 92 Air pollution 93 Interchange 94 Rush hour 95 Filling station 96 Road code 97 Two-way traffic 98 Passing lane 99 Street gutter 100 Road debris ...