Refugee Management Admin: Fence Data

Standards based on Refugee Management Administration data collected from camps 7, 15, 23-31, and 42

Barbed wire:

• #of active zombies: 6-10
  
• Time to penetrate: < 15 minutes.
  
• Note: 1-2 will often slip through prior to fence failure.

Wood plank from the outside (against flats and posts):

• #of active zombies: 15-20
  
• Time to penetrate: 8-12 hours
  
• Note: Once failure condition exists (individual flats destroyed), total failure occurs in < 1 hour.

Wood plank from the inside:

• #of active zombies: 2+
  
• Time to penetrate: < 15 minutes.
  
• Note: Active dead quickly dislodge individual flats.

Chain link from outside (against link and posts)

• #of active zombies: 50-100
  
• Time to penetrate: 48+ hours (governed by arrival rate)
  
• Note 1: this assumes proper installation of posts: 36” depth with 8” poured footer.
  
• Note 2: penetration results from mob topping fence (utilizing ramp formed of other zombies).

Chain link from inside (pushing link away from posts):

• #of active zombies: 15-20
  
• Time to penetrate: 12-16 hours
  
• Note: standard chainlink is mounted to the posts by wire or clips at a small number of points. These points break under modest pressures, causing failure by separation of chainlink from posts. RMA recommends reinforcement by 1/2 inch cable at 24 and 48 inches to prevent separation.

Wrought Iron Bars

• #of active zombies: 75-100
  
• Time to penetrate: 48+ hours (governed by arrival rate)
  
• Note 1: this assumes proper installation of posts: 36” depth with 8” poured footer.
  
• Note 2: penetration results from mob topping fence (utilizing ramp formed of other zombies).

Note that recommended fencing types and installation methods resist breakthrough, but not overtopping by large mobs of dead. RMA recommendation is to clear fence line daily.