Possible for safety of heli landing they closed both directions of traffic, less pilot distraction I guess for landing ?
Would be off putting having larger vehicles (tall trucks etc) moving nearby, was a fairly close proximity landing over normal.
If a roadside worker injury, people can be so impatient around roadworks can't they ?
Usually location signage and barriers are sufficient for safe workspaces, but I see dashcam vids of people flying through them without regard to speed restrictions at these sites.
Some people put their personal schedules ahead of someone else getting home safely from work.
Hope the victim is doing ok.