The exercise will include testing the installations Giant Voice Mass Warning Notification System. There is no cause for alarm if you see many responding emergency vehicles or hear the sounds from the giant voice system, it is only an exercise. The exercise may cause some smoke to cross over Route 17. Be alert and slow down for local emergency vehicles directing traffic on Route 17. If you have any questions, please contact the Fort A.P. Hill Public Affairs Office at (804) 633-8120.