Many of these risks could also have been reduced by having a couple of other people whose responsibility it is to look out for the public getting too close and to politely prevent this. That is what I did when filming in a College corridor and also at my Dad's work. However, due to the coronavirus lockdown I was unable to have any other crew than my parents, which is why some of the Actions to minimise or reduce the hazards are less than ideal.
Also, I always took a first aid kit with me (in case of any accidents) and a phone to phone for help or 999 if necessary.