In industrial settings, emergency escape routes must be permanent, clearly marked, unobstructed, and lead to safe outdoor areas, with a minimum width of 28 inches and doors swinging with exit travel.

 In industrial settings, emergency escape routes must be permanent, clearly marked, unobstructed, and lead to safe outdoor areas, with a minimum width of 28 inches and doors swinging with exit travel. 

Here's a more detailed breakdown of the key criteria for industrial emergency escape routes:

1. Permanence and Design:

Permanent Fixtures:

Exit routes should be permanent parts of the workplace, not temporary or easily obstructed.

Multiple Routes:

Typically, workplaces should have two or more exit routes, especially if the workplace is large or has a high number of employees, to ensure that if one route is blocked, another is available.

Clear Path:

Exit routes must be kept clear of obstructions like machinery, equipment, or stored materials.

Safe Outdoor Areas:

Exit discharges should lead directly outside or to a street, walkway, refuge area, public way, or open space with access to the outside.

Adequate Size:

These exit discharge areas must be large enough to accommodate the building occupants likely to use the exit route. 

2. Marking and Signage:

Clear Markings: Each exit route must be clearly marked with an "EXIT" sign.

Signage Requirements: Signs should have "EXIT" in letters no less than 6 inches high and should be of contrasting colors.

Illumination: Signs should be illuminated by no less than five foot-candles.