Speed Limits

What is the general speed limit in residential areas?

Usually 25 mph, unless posted otherwise.

What is the speed limit in school zones when children are present?

Typically 15–25 mph, depending on the state.

What is the speed limit in business or urban districts?

Usually 25–35 mph.

What is the standard speed limit on two-lane rural highways?

Usually 45–55 mph.

What is the speed limit on interstate highways or freeways?

Typically 55–70 mph, depending on the area and state law.

When driving near a railroad crossing without gates or signals, what is the safe speed?

Slow to 15 mph and look both ways before crossing.

What is the speed limit in alleyways?

Usually 15 mph.

How should you adjust your speed in bad weather (rain, fog, snow)?

Reduce speed and increase following distance — drive slower than the posted limit if necessary.

When should you reduce speed on the road?

In heavy traffic, poor visibility, curves, near pedestrians, or near schools and playgrounds.

What is the “basic speed law”?

You must never drive faster than is safe for current conditions — even if it’s below the speed limit.

What is the “minimum speed limit”?

The slowest you can drive on a highway to keep traffic flowing safely (usually 40 mph on freeways).

What happens if you drive too slowly?

You can cause traffic hazards and may be ticketed for obstructing traffic.

How do you know when to slow down on curves?

Reduce speed before entering the curve, not while turning.

What should you do when approaching a stopped school bus with flashing red lights?

Stop completely — do not pass until the lights stop flashing and it’s safe.

What is the best practice when driving at night?

Drive slower than the daytime limit and make sure you can stop within the distance you can see with your headlights.