Common Abbreviations

This article lists common abbreviations, acronyms and other word-shortenings used on this site. As the site grows, expect this list to as well.

Road-Related

• **AASHO** - American Association of State Highway Officials
• **AASHTO** - American Association of State Highway and Transportation Officials; succeeded the American Association of State Highway Officials in 1973
• **ODOT** - Oregon Department of Transportation; succeeded the Oregon State Highway Department in 1969
• **OR-xx** - Oregon Route xx
• **OSHC** - Oregon State Highway Commission
• **OSHD** - Oregon State Highway Department
• **OTC** - Oregon Transportation Commission; succeeded the Oregon State Highway Commission in 1973
• **SR xx** - Washington State Route xx

Others

• **WWI** - World War I
• **WWII** - World War II