Ohio Driver's Handbook, Section 4: Rules of the Road

Ohio speed limits, right-of-way, traffic signals, signs and pavement markings.

Key rules

1. Whatever the posted limit, you must be able to stop in the distance available. handbook
2. Limits: 15 mph in alleys, 20 in school zones at set times, 25 on city streets, 55 on urban freeways and 70 on rural freeways. handbook
3. Yield to whoever arrived first, to the right if you arrive together, to oncoming traffic when turning left, and to emergency vehicles and funerals. handbook
4. A dark traffic light is treated as a stop sign; flashing red means stop, flashing yellow means caution. handbook
5. White lines separate same-direction traffic, yellow lines opposite directions; pass only when the broken line is on your side. handbook