(17 Apr 2016, 6:43 pm)James101 wrote A device which was effective in the way you describe would be fantastic.

My issue is with the device currently used which appears to be startled by so many false alarms which undermines it's effectiveness.

DaveyBowyer was incorrect in suggesting that the "Red Kite" branded Volvo B9TLs announce "Stop - low bridge!" These say something along the lines of "Danger - low bridge. 400 yards ahead"

I think this is more effective. With older systems, you don't know how far away the bridge is, to know whether it's something worth taking caution for.