SANDAG (2010) San Diego Regional Bike Plan 2010.
https://www.google.com/search?q=San+Diego+Regional+Bike+Plan+2010&rlz=1C1CHZL_enUS 739US739&oq=San+Diego+Regional+Bike+Plan+2010&aqs=chrome..69i57j69i64.2236j0j7& sourceid=chrome&ie=UTF-8

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