- Category: Blog
All you have to do is turn on the TV or go online to see that now more than ever there is a need in an emergency situation to find a way to instruct people inside a building on what to do to stay safe. Three hundred and fifty years ago the prime danger was fire, which was the case when London was ravished by a conflagration that destroyed 13,000 buildings. Remarkably, only a few people perished as the warning system of the day, a ringing bell and people yelling out warnings in the street, proved sufficient. Even when fire alarms became the norm in the 1900s, the piercing screech and flashing lights told you there was a fire, but not where the fire was, where the exits were, or even if you were heading into the inferno.