OK, don't forget about posters and leaflets in all the local nurseries and children's play areas, parent fora etc etc. so the parents can prepare and make sure their children aren't disturbed. How far radius should be covered? I suggest 2 miles from the display, also I think prevailing winds should be taken into account and perhaps the range of leafleting should be extended by a mile or two in that direction. Maybe some full page adverts in the local press too.