I’ve worked at LHR since 1970. So I’ve seen a lot of incidents over the years. I don’t Know the facts in this case, so I shall reserve judgment. I do question the speeds that some of the ops vehicles travel at. Obviously out on the airfield and in response to an emergency then speed is essential. Speed should be reduced within the area of the parking stands and crossing points. Responding to a marshalling request, probably doesn’t require a high speed response. Police rapid response vehicle drivers are trained to a very high standard of defensive driving. Are airfield ops drivers trained to the same standard?