What is the 85th percentile speed?
The 85th percentile speed is the speed at or below which 85 percent of the motorists drive on a given road when unaffected by slower traffic or poor weather. This speed indicates the speed that most motorists on that road consider safe and reasonable under ideal conditions.

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1. How are speed limits set?
2. What are the maximum speed limits as set forth by Maryland statute?
3. What conditions influence speed limits?
4. What is a traffic engineering study?
5. What is the 85th percentile speed?