Bike boxUnited 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.
43. Bike box
A bike box, also called an advanced stop area, is a marked space at a signal-controlled intersection where cyclists can wait ahead of motor vehicles while the traffic light is red. It is usually positioned between two stop lines and may display a bicycle symbol.
A bike box helps increase cyclist visibility and allows cyclists to position themselves clearly before traffic starts moving. The exact users, markings and traffic-light rules vary between countries.
Wikimedia.org • Jim.henderson • CC0
What is a bike box or advanced stop area in the United States?
A bike box may be installed at a US signal-controlled intersection to put cyclists visibly ahead of motor vehicles. The layout and enforceable stopping rule depend on the relevant state and local traffic regulations.
🔗 mutcd.fhwa.dot.gov • FHWA MUTCD11th Edition Revision1, section9E.12 — bicycle boxes
Where should a car wait when a marked bike box has a red light in the United States?
Where the box is reserved for cyclists, stop at the motor-vehicle stop line before the box when the signal requires a stop. Follow any separate vehicle-category signals, local exceptions and direction from a traffic officer.
🔗 mutcd.fhwa.dot.gov • FHWA MUTCD11th Edition Revision1, section9E.12 — bicycle boxes
Does a bike box let cyclists ignore a red signal in the United States?
No. A bike box is a positioning facility, not a general exemption from red traffic lights. Cyclists must obey their applicable lights and any specially authorised turn indications. Turning drivers must check for cyclists moving off when signals change.
🔗 mutcd.fhwa.dot.gov • FHWA MUTCD11th Edition Revision1, section9E.12 — bicycle boxes

Traffic rules
United States