Second, the numbers trying to use tactical 1 after the South Tower collapsed may have drowned out some evacuation instructions.

A clear understanding of the evacuation instructions could have wide implications for building design and safety practices.

For your safety, respond quickly to mandatory evacuation instructions that are issued in your neighborhood.

Emergency response bulletins give way to damage reports and evacuation instructions as millions of refugees clog the roads.

The message, however, can only be 90 seconds, so it can't give detailed evacuation instructions.

When I came back into the small officers' room, the Regent was just then issuing the first evacuation instructions.

A fire warning will generally include information on the location and movement of the fire, evacuation instructions, and shelter locations.

In addition, most of the evacuation instructions did not mention that the SouthTower had collapsed.

However, at least three firefighters heard evacuation instructions which stated that the North Tower was in danger of "imminent collapse."

Consequently, many residents waiting for evacuation instructions never received warning of the flood.