Workplace emergency exit routes are not only helpful, but required for safe evacuation. The Occupational Safety and Health Administration (OSHA) has issued design and construction requirements for all emergency exit routes.
OSHA states than an exit route is a "continuous and unobstructed path of exit travel from any point within a workplace to a place of safety," and can be broken down into three separate parts.
The exit access, exit, and exit discharge points must all be clearly established, with at least two routes available to all employees and personnel during an emergency.
Basic requirements of exit routes include placing them as far apart as possible from each other in the event one is blocked, ensuring that the route is a permanent fixture in the workplace, and separating each exit with fire resistant materials. A route must lead directly to a street, refuge area, open space, or public way with access to the outside, and must be large enough to accommodate the likely amount of people using the exit in an emergency.