PROJECT DALLAS ZOO BY KIMBERLY GUIDRY TANYA RODRIGUEZ

1. PROJECT DALLAS ZOO BY KIMBERLY GUIDRY TANYA RODRIGUEZ

2. Presentation Overview • We will be presenting problems and solutions for two different projects at the Dallas Zoo. • Project 1: Reduce or disguise excessive internal maintenance vehicle traffic. • Project 2: Present ideas for a more secure perimeter gating system.

3. PROJECT 1: INTERNAL VEHICLE TRAFFIC

4. Current Internal Vehicle Traffic • The Dallas Zoo has an enormous amount of interaction between the visitors and the zoo vehicles in Zoo North. • During zoo hours, the internal vehicles range from golf carts and Daihatsu’s (off-road vehicles) to half-ton trucks (road vehicles). • These vehicles frequently interrupt pedestrian traffic as the following two slides will illustrate.

5. Daihatsu’s frequently seen throughout the zoo

6. Garbage Pick-up Truck

7. Off-Road Vehicles • The off-road vehicles such as golf carts and Daihatsu’s do not have a set pattern or starting point and cannot be re-routed outside the zoo. • We suggest that these vehicles should be disguised for visitors viewing pleasure. • Here are a couple of examples.

10. Road Vehicles • We have designed an external routing system for road vehicles using the Shortest-Path Model with a distance factor versus a disturbance factor. • The objective was to find the smallest amount of disturbance from each origin(node) to the destination.

11. 2 1 3 4 5 7 9 6 10 8

12. Employee Gate (5,805) 1 (4,438) 2 [0%] 3 [90%] (7,633) [95%] (7, 369) 4 5 (7, 422) [95%] [95%] [100%] [100%] [90%] 7 6 9 [100%] (5, 663) (6,234) [100%] ( - , 0) [90%] 8 10 (7,424) (8, 851) [90%]

14. PROJECT 2: PERIMETER GATES

15. Current Gating System • The Dallas Zoo currently secures all gates with padlocks. • The policy of the Dallas Zoo states that gates should be locked at all times. • Unfortunately this policy is not upheld or enforced creating: • easy and free access into the zoo • a weak second barrier for animal containment

16. Gates Left Open and/or Unlocked • After extensive visits we noticed the same gates being left unlocked. • Of the 5 gates surrounding the outside perimeter of Zoo North, 2 of the 5 gates were frequently left open. • Also, 4 of the 5 gates were usually left unlocked • Gates referenced: • Employee Gate on Clarendon • Havendon • Page Street • Page Street (Construction Gate) • Marsalis

17. Our observations show a 40% chance of a loose animal escaping, and an 80% chance of someone entering for free. These percentages show that Zoo North is an extremely ineffective perimeter Here are a few pictures to demonstrate.

18. This gate is frequently unlocked.

19. This gate is always left unlocked and open.

20. Researching Gating Alternatives • We did extensive research on alternatives for making the gates stay closed, locked, and secured. • Our research consisted of contacting several different gating and fencing companies along with an extensive Internet search. • We would like to recommend two local companies that were quite helpful in our research effort: • Jeff Goodwin at Southwest Automated Security • Chris Brown at Fence Supply Inc.

21. We recommend using the existing swing gates and adding automation. Which consists of: 1. A swing gate operator 6. Inductive Loops 2. A control panel 7. An exit switch 3. An entrance switch 8. Gate stops 4. Reversing Loops 9. Warning lights 5. Photocell

22. Six Decisions on Selecting a Gate Operator • What direction should the gate swing, inward or outward? • How many degrees of swing are required? This is usually 90 degrees. • What type of mounting geometry or placement is needed for the swing gate arm to achieve the desired effects? • What type of internal locking is needed, “gate safe” or “gate secure”? • What speed should the gate leaf travel? This depends on the length of the gate leaf. • How many operations per hour, or in other words how many times will each gate open and close?

23. Initial Ideas • In deciding recommendations for each gate, we initially wanted to recommend a barrier arm with a card reader for the employee entrance. This was much more expensive and hard to maintain because each card cost $4. • We also considered solar powered gating systems, but they were not recommended for industrial use. • Sliding gates were another option, but retrofitting an existing swing gate would be more expensive than using the original swing gate.

24. Recommendations • We recommend utilizing Station 1, which is currently an office that is manned 8:00a.m. to 6:00p.m. 7 days a week for any future intercom or closed-circuit television installed. • We have eight gates that we recommend for automation. • Gate 1: Employee Gate on Clarendon • recommend automating the existing swinging gate • install a digital keypad with an intercom • possibly install closed-circuit television

25. Recommendations Cont. • Page Street (Current Intercom) • Page Street (Construction Gate) • Havendon • Marsalis (Construction Gate) • automate the existing swing gates • install an intercom with closed-circuit television • possibly install digital keypad with intercom

26. Recommendations Cont. • Subway Gate, internal gate between employee entrance and the zoo • 15th Street • Gate under Marsalis by visitor entrance • Automate the current swing gate and install loops detectors that allow automatic entry by detecting a magnetic field of an automobile.

27. Conclusion and Recommendations • We recommend utilizing an external path for road vehicles to reduce disturbance. • Off-road vehicles should be decorated to create a more enjoyable atmosphere. • Perimeter swing gates are recommended for automation to increase security and to prevent future lost revenue.