California Car / Permit practice question · Traffic Laws
An alley is defined as a road no wider than 25 feet used to reach the side or rear of buildings. Unless otherwise posted, the speed limit in an alley is:
Answer choices
- 15 mph— Correct answer
- 10 mph
- 20 mph
- 25 mph
Why this is the answer
An alley is a road no more than 25 feet wide that gives access to the back or side of buildings. Its speed limit is 15 mph. Do not confuse the 25-foot width of the alley with its limit: the handbook gives 25 mph to business and residential districts, not to alleys.
Source: California Driver Handbook — Alleys
Content reviewed against official driver handbooks · August 12, 2026
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