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Street Classifications
The City defines it’s streets in very specific ways. Below is a table and description of the kinds of streets we have.

Freeways:  Freeways route traffic through the community and are characterized by large traffic volumes and high speed travel.

Arterial Routes: Arterials link residential and commercial districts, and serve shorter through traffic needs. Examples include portions of Hillsdale Boulevard, Norfolk Street, and Alameda de las Pulgas.

Collector Roads: Collector streets link neighborhoods to arterials and are not intended for through traffic, but are nonetheless intended to move traffic in an efficient manner.

Local Streets: Local streets are designed to serve only adjacent land uses and are intended to protect residents from through traffic impacts.

Street Characteristics 
This table describes the typical street characteristics intended for each street class.


 Roadway Type  Number of Lanes  No. of Daily Vehicles
 Freeway  6-10  120,000 – 250,000
 Arterial  2-6  10,000 – 50,000
 Collector  2-4  1,000 – 10,000
 Local  2  500 - 1,000

More Information
You can learn more about our city’s traffic plan by reading the Circulation Element of the General Plan.

San Mateo City Hall – 330 West 20th Avenue, San Mateo, CA 94403

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