This sucks for all involved.

The girl and her family hit by a tragedy out of their control.

The driver who didn’t even know he hit her, had to assume it was safe because of traffic management was in place.

The failure is highlighted in the article; the coroners findings:

“However, it must not be forgotten, Ms Dawson’s death has illustrated system-level errors in the implementation of a vehicle-centric temporary traffic management plan which did not clearly communicate to road users where cyclists should ride and did not provide satisfactory options for cyclists.”