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92 S e c t i o n 5 Survey Implementation and Data Analysis (Task 4) Task 4 of the research required the following work: 4. Who is the operator of the system, contracted or otherwise? Conduct the survey developed in Task 3 and compile the What was the basis for their selection? survey findings. In addition to compiling the survey results, 5. Who is the maintainer of the system, contracted or other the researchers should identify similarities and differences wise? What was the basis for their selection? in defining performance measures and data among APM 6. Who is the supplier of the system elements (e.g., the systems at airports. For example, APM systems at airports vehicles, automatic train control equipment, guide currently define grace periods and downtime in different way running surfaces)? What was the basis for their ways. selection? The following subsections document the results of the 7. What functions at your system are contracted by the owner work undertaken for Task 4 of the research. (and what functions are subcontracted by the contracted system operator or maintainer, if applicable)? 5.1 Survey Implementation 8. What is the number of operations and maintenance per- sonnel required to operate and maintain the system? The research team surveyed 31 North American APM 9. When did your system first open to the public? systems (all 22 airport systems in North America and nine 10. Who can we contact with questions about your survey non-airport systems) in accordance with the survey plan responses? Please provide a name, title, and contact infor- described in Section 4. Fourteen of the 22 airport APM systems mation (telephone and email address). returned survey responses, and four of the nine non-airport APM systems returned survey responses. This represents participation rates of 64% for airport APM systems, 44% for 5.1.2 Section 2: Performance Measures non-airport APM systems, and an overall participation rate of 58%, exceeding the 50% participation rate desired by the 1. What performance measure(s) do you use to judge over- ACRP panel. With 14 airport APM systems and four non-airport all performance of your system? Please describe each APM systems participating, the minimum quantity of APM measure, including their names, how they are calculated, systems participating also exceeded the panel-recommended and their associated definitions, rules, and formulas. Please numbers of 10 airport APM systems and three non-airport attach, upload, or send material as necessary to explain APM systems. this answer. In summary, the surveys contained the following questions, 2. What performance measure(s) do you use for contrac- organized in the five sections described in the following and tual compliance purposes? Please describe each mea- provided in Section 6 of this Appendix. sure, including their names, how they are calculated, and their associated definitions, rules, formulas, and interpretations, including how rigorous the contract 5.1.1 Section 1: General Information is followed and any modifications of the contract that 1. What is the name of your APM system? may have been made. Please attach, upload or send 2. What is the location of your system? material, including any applicable contract sections, to 3. Who is the owner of the system? explain this answer.