Ohio Speed Limits practice test

55 mph

Ohio sets 55 mph for highways outside municipal corporations. Some two-lane routes, expressways, freeways and island roads have their own limits.

Source: Ohio Revised Code, Section 4511.21, Speed limits - assured clear distance

158 feet

With good brakes on dry pavement, braking alone can take about 158 feet. Perception and reaction time come on top of that.

Source: Ohio Driver Manual, Section 8: Safe Driving Tips, Stopping Distance

25 mph

The limit is 25 mph in most of a city or village, including residential streets. State routes and through highways outside business districts, and alleys, have their own limits.

Source: Ohio Revised Code, Section 4511.21, Speed limits - assured clear distance; Ohio BMV website, Sample Knowledge Test

As soon as rain, snow, sleet or ice appears

Tires grip less on slippery roads. It takes longer to stop, and turning without skidding is harder.

Source: Ohio Driver Manual, Section 8: Safe Driving Tips, Slippery Roads

15 mph

Ohio sets 15 mph for alleys within a municipal corporation.

Source: Ohio Revised Code, Section 4511.21, Speed limits - assured clear distance

Before you enter it

Reduce speed before the curve so you can use slight, constant acceleration through it. Slow more when traction is poor or you cannot see its end.

Source: Ohio Driver Manual, Section 8: Safe Driving Tips, Curves

70 mph

Ohio sets 70 mph on all rural freeways. It is unlawful to go faster.

Source: Ohio Revised Code, Section 4511.21, Speed limits - assured clear distance

A speed that lets you stop within the clear distance ahead

You must not drive at a speed greater than will let you bring the vehicle to a stop within the assured clear distance ahead.

Source: Ohio Revised Code, Section 4511.21, Speed limits - assured clear distance; Ohio Driver Manual, Section 4: Rules of the Road, Speed Limits

20 mph

The school zone limit is 20 mph at those times when the signs are erected. Some controlled-access roads and freeways follow different rules.

Source: Ohio Revised Code, Section 4511.21, Speed limits - assured clear distance; Ohio Driver Manual, Section 4: Rules of the Road, Speed Limits

The lower school zone limit

Obey the reduced limit while it is in effect.

Source: California Driver's Handbook, Section 7, Laws and Rules of the Road (continued); Texas Driver Handbook, Chapter 5, Signals, Signs, and Markers, p. 31; Official Florida Driver License Handbook, Chapter 3, Your Driving Privilege (p. 29); Illinois Rules of the Road, Chapter 4, Traffic Laws; Pennsylvania Driver's Manual (PUB 95), Chapter 2, Signals: School Zone Signals; Ohio Driver Manual, Digest of Motor Vehicle Laws, Ohio Revised Code 4511.21; Georgia Drivers' Manual, Section 5: Traffic Laws, Speed Limits; North Carolina Driver Handbook, Chapter 5, Signals, Signs and Pavement Markings: Traffic Signs (pp. 83-85); What Every Driver Must Know (SOS-133), Chapter 4, Speed limits, p. 26; Virginia Driver's Manual (DMV 39), Section 3, Safe Driving: Speed Limits (pp. 14-15); Washington Driver Guide, Chapter 4, 4.17 Zones: School zone; Arizona Driver License Manual and Customer Service Guide, Section 3, Roadway and Vehicle Knowledge: School Crossing Sign (p. 42); Tennessee Comprehensive Driver License Manual, Section B, Chapter 4, Speeding in School Zones (p. 47); Alabama Driver Manual, Chapter 5, Signs, Signals and Road Markings, Regulatory Signs, PDF p. 46; Connecticut Driver's Manual, Chapter 3, Driving Behaviors, Children at Play and School Zones, p. 16; NRS 484B.363, NRS 484B.363(1)-(2); handbook Chapter 3, School Areas, PDF p. 33; MDPS Driver's License Manual, School Zone sign, PDF p. 31; PDF p. 41