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50 Integrating Airport Information Systems Table 4-12. Business-critical information for fleet maintenance. Business-critical Key Data information data elements Metrics source In-commission rates by Total number of vehicles, number Ratio of in-commission to total Superintendent (fleet type of vehicle out of commission, vehicle maintenance or classification designee) Critical equipment status Total number of vehicles defined NA Superintendent (fleet as critical, number out of maintenance or commission designee) Budget (budget-to-actual) Dollars expended, date, dollars Ratio of budgeted to actual Various sources: time parts, materials, capital , etc. budgeted, etc. clocks, paper records, all flowing through either Finance or HR Personnel statistics Hours worked, labor rate, Federal Percent vacancy HR database. Many Insurance Contributions Act (FICA), airports have retirement contribution, positions centralized time clocks approved, positions filled, etc. which record and calculate data Contractual services: cost Company name, contract value, Budget to actual Finance of services, expiration date, contract term, work description, etc. year-to-date expenditures, etc. Capital expenditures (rolling Budgeted amount, expenditures to Budget to actual Finance stock) date, etc. Parts and material Budgeted amount, expenditures to Budget to actual Finance expenditures date, etc. Positions filled, budgeted Approved budgeted amount, Percentage filled Operations and positions positions filled maintenance budget Approved vacancies for hire Senior management's approved NA HR database, positions (may be different than normally generated approved budget) from senior management, sometimes external limits (e.g., agency- wide hiring freeze) Unplanned downtime Unforeseen mechanical problems Incident reports, work requests, tenants, public, etc. Underutilized vehicles Hours or miles driven Utilization compared to industry Fleet records standards Engineering's Planning division specializes in using forecast data and comparing it with existing capacities of airport systems to calculate the physical requirements of the airport. Examples of data- bases commonly used include those that support the airport's Master Plan, parking facility count systems, Federal Census Bureau, and National Plan of Integrated Airport Systems. Additionally, Planning uses the Design/Construction CAD system to develop layouts for apron parking of aircraft, circulation patterns for public parking lots, and concession placement within terminal facilities. Significant Metrics from Engineering Business-Critical Information Metrics available from Engineering information include the status of a design or construc- tion project shown as a percentage of completion. This information is essential, particularly when a project such as site preparation must be completed before the next phase of a program. Using project management techniques, engineers can calculate costs per day to accelerate the design or construction process and, by doing so, make informed decisions as to whether an invest- ment provides the necessary return. Senior management is particularly interested in federal funding levels as a percentage of the total project cost because it is not uncommon for additional