Description: The CCC Shapefile was prepared by Public Works as part of the development of the County's Vision Zero Action Plan in partnership with the Los Angeles County Department of Public Health and in collaboration with community stakeholders. A Collision Concentration Corridor is defined as any half-mile roadway segment that contained three or more fatal or severe injury collisions between January 1, 2013, and December 31, 2017. A priority score was developed for each segment by first totaling the number of fatal and severe injury collisions that occurred on that segment, and then weighting for fatal collisions, pedestrian or bicycle-involved collisions, and collisions occuring in disadvantaged areas. A disadvantaged area is defined as a community in the lowest quartile of the California Healthy Places Index. Collision Concentration Corridor Priority Score = (#_of_Fatal_& Severe_Injury_Collisions + 0.5*#_of_Fatal_Collisions_that_Involved_Any_Type_of_Travel_Mode + 0.25*#_of_Fatal_&_Severe_Injury_Collisions_that_Involved_Vulnerable_Road_Users + 0.25*#_of_Fatal_and_Severe_Injury_Collisions_that_occurred_in_a_Disadvantaged Community) / Segment_Length**The minimum segment legnth was assumed to be 0.5 miles
Copyright Text: VisionZeroLACounty.com
Data set compiled from Los Angeles County Public Works’ Collision Database, collisions occurring between January 1, 2013 through December 31, 2017 for Unincorporated County roadways; Transportation Injury Mapping System (TIMS), Safe Transportation Research and Education Center, University of California, Berkeley. 2018. Data query from January 1, 2013, through December 31, 2017 for Unincorporated Los Angeles County, excluding State Highways - https://tims.berkeley.edu/ (Accessed October 15, 2018).
Contact Person:
Eric Dunlap
edunlap@pw.lacounty.gov