Question:  Caltrans publishes traffic count data that is organized by Route number and post mile.  The database sometimes includes counts on either side of a cross street, labeled as “Back” and “Ahead”.  The Ahead data for one posting should match the Back data for the next one, but sometimes they don’t.  What number should be used when they don’t match? 

 

Answer:  Caltrans traffic data is available on their website at http://www.dot.ca.gov/hq/traffops/saferesr/trafdata/2000al...


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