Transportation Abbreviations and Acronyms
- smtdSpringfield Mass Transit District
- SMUSurface Mining Unit
- ASTMAmerican Society for Testing and Materials (Philadelphia, Pennsylvania)
- R-RRefit and Repair
- SCWScreamin' Cheetah Wheelies
- I/OIn-Port Operations
- AAMVAAmerican Association of Motor Vehicle Administrators
- AARDAdvanced Automotive Recovery Department
- AATAAnn Arbor Transportation Authority
- AAWVActively Articulated Wheeled Vehicle
- ACIAutomated Car Identification
- ASTAAmerican Society of Travel Agents
- ASTAAirport Surface Traffic Automation
- CASSCommercial Aviation Safety Survey
- COTACentral Ohio Transit Authority
- sassStay Alert and Stay Safe
- SPSSuperscript
- SPSShock Protection System
- SPSSuper Power Stock
- SPSSystem Performance Simulator
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