[BenMcr]

Looking at the Highways report it does look like the closures were there for a while, so I still don't understand why people became trapped if there the diversions in place - unless that traffic was before the diversion?

I know that some built in sat navs will use the TMC to identify issues and reroute, so you'd think that anyone using those would have managed to avoid the area

Ideally services like Google Maps and Apple Maps should connect to the Highways agency data, rather than relying on user reported data.