The Chicago Tribune reports today that IDOT will now keep track of doorings. Previously, IDOT had refused to consider doorings accidents, therefore, no statistics exist on doorings. This is a positive change, which may affect the availability of federal funds for driver education and other efforts in attempt to reduce doorings.
I have long estimated that about one third of all bicycle collisions in Chicago are doorings. It appears that in the future we will have an opportunity to see if my estimates hold true.