Trying to find a traffic director study

[got_yogurt]

Does anyone remember a few years back some state agency did a study where they compared using normal warning lights to using a traffic director when parked at the side of the road? I think they measured the distance at which people moved over to the other lane and the speed at which they passed when they were doing the study. As I recall they were using a tahoe with a bunch of whelen equipment on it

 

[Tony P]

This one maybe? https://elightbars.org/forums/threads/warning-light-study-may-2019.88684/

 

[got_yogurt]

Unfortunately that doesn't look like the one. There was a video, I'm not sure if it was youtube or facebook, where they talked about the study. it was a gray or silver tahoe I think, with like an outer edge and a liberty or legacy

 

[John Hearne]

The Florida Highway Patrol study discussed more effective traffic advisor design.