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56 AAMT Agency Asset Management Team ACDV Annual Cost per Daily Vehicle ADT Average Daily Traffic ALCC Annual Life-Cycle Cost ASHRAE American Society of Heating, Refrigerating, and Air-Conditioning Engineers CCTV Closed-Circuit Television CE Cost-Effectiveness CMMS Computerized Maintenance Management System CO Carbon Monoxide CO2 Carbon Dioxide CPVC Corrugated Polyvinyl Chloride CS Condition State DC Direct Current ERP Emergency Response Plan FM Frequency Modulation HMI HumanâMachine Interface HPS High-Pressure Sodium HVAC Heating, Ventilation, and Air Conditioning i Discount Rate I Inflation IRI International Roughness Index ITS Intelligent Transportation Systems kVA Kilovolt Amperes LCC Life-Cycle Cost LE Life Expended LED Light-Emitting Diode LOS Level of Service LRFD Load and Resistance Factor Design MAP-21 Moving Ahead for Progress in the 21st Century Act MOE Measure of Effectiveness N/A Not Applicable NEMA National Electric Manufacturers Association NFPA National Fire Protection Association NTIS National Tunnel Inspection Standards PA Preservation Action PMT Page term: A function in Excel that returns the payment amount for a loan based on an interest rate and a constant payment schedule Psi Pounds per Square Inch Abbreviations and Acronyms
Abbreviations and Acronyms 57 PV Present Value RBU Risk-Based Urgency RR Rate of Return SEM Sequential Excavation Method SMARTER Specific, Measurable, Achievable, Relevant, Time-Bound, Evaluation, Reassess TBM Tunnel Boring Machine TOMIE Tunnel Operations, Maintenance, Inspection, and Evaluation Manual VFD Variable Frequency Drive
