This topic deals with the evacuation pattern in high rise buildings mainly on the onset of fire. The ability to warn population of the impending disasters has become a reality only in the last few years. The ability to track and warn must be complimented with the capability of effecting a timely evacuation of potentially threatened areas. The two problems that exist are the ability to adequately disseminate a warning of an impending disaster and that of producing an evacuation once the warning has been received. These problems can be overcome by the development of a timely and accurate warning system, identification of escape routes, and establishment of a policy wherein every one within a threatened area is required to evacuate when an order is given... .