Change: The calculation for the walls works out like this: If the walls were made of poured concrete, I would need 3,708,237 cubic feet of cement   View changes from previous version. (Word count: 1457)

Change: occuredoccurred without warning, due to viruses, weather or other devastation. Last year the global surplus was down to 50 days, from 116 in 1999. At less than 60 days surplus food prices start to rise as shortages start to occur. Larder stocks 18 months of food for 25 people.   View changes from previous version. (Word count: 1376)

Change: Defensive Note:The lower edges of the walls will be lined with sharp plants. Blackberries, roses, cacti. Tanglefoot and bear-traps have been suggested, and will be included as defense for the outer wall if the budget allows.The housing provides for up to 12   View changes from previous version. (Word count: 1376)

Change: side, and the top wall, which is ten feet when viewed from the lower side. Set one hundred feet back from each wall will be a chain link fence, again the exception   View changes from previous version. (Word count: 1374)

Change: 2,8072,805 feet. Based on medieval castle structures, it is a 6 tiered step structure.It is not just designed to be a protection from zombies, but from: Disaster Minimum Requirements Reasoning Specifications Flood 50' above ground level undamaged Most hurricanes will create waves   View changes from previous version. (Word count: 1358)

Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 1358)

Change: isare the first concern, from both humans and zombies. This is followed by blackout, as the power stations are abandoned or overrun. Finally, famine and   View changes from previous version. (Word count: 1357)

Change: The top tier will have 5 multi-occupancy dwellings. 1 main, 4 minor. The remaining area will be given over to cultivation. All the lower tiers   View changes from previous version. (Word count: 1345)