Which area commonly has a 25 mph speed limit?

• A. Business/Residential Districts
• B. Alley
• C. Highway Rural Area
• D. School Zone

Answer: (A)

In California, the standard speed limit in built-up areas like business and residential districts is 25 mph unless a sign says otherwise. This lower limit is set to protect pedestrians, cyclists, and people entering or leaving driveways and intersections in areas where there’s more pedestrian activity and frequent crossings.

That’s why business or residential districts commonly have a 25 mph limit. By contrast, alleys are typically much narrower and often use a much lower limit (around 15 mph), rural highways are designed for higher speeds (usually 55 mph or more), and school zones only have a 25 mph limit during posted times when children are present; outside those times the limit can change based on posted signs. So the 25 mph default best fits business or residential areas.