Ahh, now all becomes clear....
I bet this happens all the time but only rarely causes anything any more than a momentary brown trouser moment.
https://www.dailymail.co.uk/news/ar...rong-road-outside-base-Harry-Dunn-19-hit.html
Look closely at the layout of the junction where the traffic emerges from it (13 seconds in on the video)
The left filter lane (From the perspective of the camera car) should be removed and the junction generally redesigned (Lights, mini roundabout perhaps) so that people emerging from the base are guided onto the correct side of the road (By making it awkward to emerge onto the wrong side)
As things stand, If somebody sets off incorrectly on the base, that left filter lane will
actively direct them onto the wrong side of the road in a manner that will make it unlikely that they will see the oncoming traffic until they have actually fully emerged. Very poor and thoughtless design!
My rule, If "One" person does it, they were probably careless. If "Lots" of people do it, then the person responsible for the junction layout is probably careless (Or even negligent)