Transportation Abbreviations and Acronyms
- HPTHigh Pressure Turbo
- HPTAHuman Powered Transportation Association
- HPTRHighway Planning Technical Reports
- HPVHuman Powered Vehicle
- HRHighway Research
- HRHilly Route
- HRCHonda Rotary Commercial
- HRCRHistorical Resources Compliance Ryport
- HRERHistorical Resources Evaluation Report
- HRERHistoric Resource Evaluation Report
- HRISHighway Research Information Service
- HRMCHuman Resource Manageaent Committee
- HRPHelfport Reference Point
- HRPTHighway Regulating Point Team
- HRTFhwa Office of Research, Development, and Technology
- HRTHeavy Rail Transit
- HRTHigh Rise Terminal
- HSCode Harmonised System Committee
- HSAFhwa Office of Safety
- HSACHelicopter Safety Advisory Conference
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