It is usually not too difficult to see the House Number or House Name for a property in daylight hours, but at night they can sometimes be impossible to read from the road. - First time visitors can end up having to drive slowly up and down the street searching for any visible sign of a house number, so they can then at least get a bearing and count up or down from that location to get to the right address.
Ambulance Drivers, Police, Fire Fighters, Taxis and not forgetting Pizza Delivery Drivers can have the same trouble at night trying to locate an address. Even when searching with powerful flashlights, it can be difficult for them to see an ordinary house number or house sign at night. This can mean wasting vital extra minutes searching for the house location - that’s OK if you dont mind luke warm pizza, but it could mean a matter of life and death in some 999, 911 emergency call outs.