For decades in Boston, many lights were programmed to send cars through active crosswalks on left turns. In some cases, the only place for a car to go on green was through an active crosswalk. Maybe the worst examples have been ended over the years[1] but "concurrent signaling" has been an absurd signature of callous safety-hostile traffic design right up until this year.

"Turns on red are extremely dangerous to vulnerable road users: a 1980 Insurance Institute of Highway Safety study found that they increase pedestrian crashes by 60 percent, and bicycle crashes by 100 percent." [2]

[1] https://www.boston.com/news/crime/2021/11/04/lawsuit-flawed-...

[2] https://mass.streetsblog.org/2023/06/15/guest-column-why-bos...