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| C | contrast |
| DMI | distance measuring instrument |
| ENV | Enhanced Night Visibility |
| FHWA | Federal Highway Administration |
| GPS | Global Positioning System |
| ITS | Intelligent Transportation Systems |
| LB | pavement luminance |
| LT | marking luminance |
| SUV | sport utility vehicle |
| VDOT | Virginia Department of Transportation |
| VTRC | Virginia Transportation Research Council |
| UV | ultraviolet |
| UV–A | ultraviolet A (wavelength 315 to 400 nanometers) |
| HLB | halogen (i.e., tungsten-halogen) low beam |
| hybrid UV–A + HLB | hybrid UV–A/visible output together with halogen low beam |
| three UV–A + HLB | three UV–A headlamps together with halogen low beam |
| five UV–A + HLB | five UV–A headlamps together with halogen low beam |
| HLB–LP | halogen low beam at a lower profile |
| HHB | halogen high beam |
| HOH | high output halogen |
| HID | high intensity discharge |
| hybrid UV–A + HID | hybrid UV–A/visible output together with high intensity discharge |
| three UV–A + HID | three UV–A headlamps together with high intensity discharge |
| five UV–A + HID | five UV–A headlamps together with high intensity discharge |
| ANOVA | analysis of variance |
| DF | degrees of freedom |
| F value | F-ratio |
| GLM | general linear model |
| MS | mean square |
| P value | statistical significance |
| SE | standard error |
| SNK | Student-Neuman-Keuls |
| SS | sums of squares |
| cm | centimeters |
| ft | feet |
| gal | gallons |
| h | hours |
| kg/L | kilograms per liter |
| km/h | kilometers per hour |
| lb | pounds |
| m | meters |
| mi/h | miles per hour |
| mm | millimeters |
| s | seconds |
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