The data are provided in 20 shapefiles. The shapefiles are segmented by the scenario comparison and the analysis day/time. The fields include the Census block-level 15-digit identifiers, baseline accessibility, alternative scenario accessibility, their absolute difference, their percent difference. CRS EPSG: 4326 - WGS 84. Users should be able to map the cumulative job accessibility by transit for 5 transit network scenarios and 4 comparisons between transit networks.