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Los Angeles County street centerlines, which serve as Primary Disaster Routes (freeways and highways) and Secondary Disaster Routes (highways and other roads).

Street centerlines are from the CAMS_ROADS dataset (2015-09-09, 2018-07-18).

Disaster Routes description courtesy of LA County DPW Disaster Routes website (http://dpw.lacounty.gov/dsg/disasterroutes/):

“Disaster Routes play a primary role in disaster response and […]