| AADT |
Average Annual Daily Traffic |
| ADT |
Average Daily Traffic |
| AASHTO |
American Association of State Highway and Transportation Officials |
| Caltrans |
California Department of Transportation |
| CMF |
Crash Modification Factor |
| DOT |
Department of Transportation |
| FARS |
Fatality Analysis Reporting System |
| FHWA |
Federal Highway Administration |
| FLH |
Federal Lands Highway |
| HFST |
High Friction Surface Treatment |
| HSIP |
Highway Safety Improvement Program |
| HSM |
Highway Safety Manual |
| ICWS |
Intersection Conflict Warning System |
| IDOT |
Illinois Department of Transportation |
| INDOT |
Indiana Department of Transportation |
| ITE |
Institute of Transportation Engineers |
| KYTC |
Kentucky Transportation Cabinet |
| LED |
Light-Emitting Diode |
| LON |
Length of Need |
| MnDOT |
Minnesota Department of Transportation |
| MoDOT |
Missouri Department of Transportation |
| MUTCD |
Manual on Uniform Traffic Control Devices |
| NCAT |
National Center for Asphalt Technology |
| NCHRP |
National Cooperative Highway Research Program |
| NHTSA |
National Highway Traffic Safety Administration |
| NJDOT |
New Jersey Department of Transportation |
| NYSDOT |
New York State Department of Transportation |
| PC |
Point of Curvature |
| PDO |
Property Damage Only |
| PennDOT |
Pennsylvania Department of Transportation |
| ROR |
Run-Off-Road |
| RPM |
Raised Pavement Marker |
| RSA |
Road Safety Audit |
| SEAHC |
Surface Enhancements at Horizontal Curves |
| SSP |
Safety Strategic Plan |
| SV |
Superelevation Variance |
| usRAP |
The United States Road Assessment Program |
