What is a traffic engineering study?
A traffic engineering study is the observation and analysis of road and traffic characteristics to guide the application of traffic engineering principles. The study of traffic limits includes the following:

- Review of the road's environment, features, and conditions and traffic characteristics.

- Observation and measurement of vehicle speeds at one or more representative spots along the road in ideal weather and under free-flowing traffic conditions.

- Analysis of the vehicle speeds to determine average and 85th percentile speeds and other characteristics.

- Review of the road's crash history.

- Review of any unusual conditions not readily apparent to the driver.

Show All Answers

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?