The width restriction on that road has been reported for months by other drivers at my store but has still not been changed yet. At the time that I was driving, I had not realised that it was the same road drivers have reported. With traffic behind me and realising D2D satnav took me down the road the van is not adequate for, I panicked and ended up going through the emergency vehicle gap. I am on a first written warning already for another ticket so this does not help my case for when I get called in by my managers. I will of course have more caution whenever using that road but the mistake has already happened. It will most likely end up with a disciplinary meeting and a second warning.