Mark M Hood JrGeography C188: University of California, Berkeley

AcknowledgementsSource – Cal Atlas, SF GIS, DataSF ,Google and Yahoo (for locations of Sporting Goods and Grocery store locations.

Projection - NAD_1983_StatePlane_California_III_FIPS_0403_Feet

Creator – Mark M Hood Jr

Date – November 2010

Conclusion-During the evacuation of the city it is easy to see that it is possible to evacuate the entire city before a zombie reaches either bridges or the southern exits. The only problem will be those who have to go through the zombies in order to reach those exits. They would only be adding fuel to the fire.

-After creating the Suitability map it was clear that the red area just south of the Bay Bridge was the most suitable location to survive from the zombies. It has grocery stores and sporting good stores with a hospital nearby and no open spaces so it would be easy to avoid zombies around corners, in buildings and behind abandoned cars on the road.

Aim-To help anyone in the San Francisco Area during the release of the bio-weapon to either evacuate the city or find a suitable area to have the most optimal time to prepare a facility for the oncoming aftermath.

-If able to survival the devastation of the initial attack, to find the most suitable place to fortify a shelter and be near enough life requirements to survive indefinitely in a zombie infested world.

IntroductionThe mayor of the city of San Francisco received a terrorist threat saying that they will use a new bio-chemical weapon on all police stations in the area within a couple of hours. The new weapon won’t kill its victims but instead turn them into flesh eating zombies. Panicked, the mayor has come to me to create a network analysis of the destruction as the hours progress and asked me to make a suitability analysis map to help any victims left in the city survive till either help arrives or, if its the end of the world, to just survive till they die from natural causes. I am also told that the military will evacuate everyone they can from the city till the first zombie reaches the border of that exit. Each bridge and the BART tunnel will be blown up when a zombie reaches that exit route. Also, the roads leading south out of the city will be open until the first zombie reaches it, then the military is order to kill on site weather living or un-dead.

During the Chaos Time taken for the zombie infestation to spread,

each color representing 30 minutes for a 1 mph movement speed zombie.

Surviving the Aftermath with Suitability Analysis

-Fresh Water to drink (boil first)

- Grocery Stores (for canned foods and bottled water)

- Sporting Goods Store (for silent but deadly weapons)

- Hospitals (for medical supplies)

- Police stations (possibly still contaminated)

- Open spaces (easily seen by zombies)

Method-Using the network analysis tool in ArcMap, I was able to use the police stations as a service and calculated service area distances for a 1 mph zombie to show spread. Using the same technique, I created my own service areas at the bridges and at all the exiting roads in southern San Francisco.

- Using the buffer tool on such things as the Hospitals, water areas, sporting goods and grocery stores I was able to make a opportunity map to help visualize the benefits in the area. Then, using the buffer tool on the police stations and using open spaces I was able to make the constraints map. Putting them together in one map using the Union tool I used a weight system for each opportunity and constraint to make a total weight field to calculate the suitability Analysis map.

After one hour and thirty minutes, the spread has reached the Bay bridge and the southern exits. The Golden Gate Bridge is not reached by the zombies for three hours.

Challenges-Finding any data on grocery stores and sporting good stores in the area proved non-existent. Had to build my own shape file with points implementing these two store types in the area.

-Other than the zombies flooding the streets, coming up with constraints for the suitability analysis was very difficult.

Showing the max distance someone can be from the Golden Gate bridge before it is destroyed for a 3 mph walking speed.

Showing the max distance someone can be from the Bay Bridge and the southern exits out of the city before the bridge is destroyed or southern exits blocked off for a 3 mph walking speed.

Zoomed in photo of suitable survival location goes here

Final Suitability photo goes here

Opportunities

Constraints

To the left is a close up view of the ideal area to hold out after the aftermath of the initial chaos is unleashed upon San Francisco.