| Title | Evaluation of the Impact of Spectral Power Distribution on Driver Performance |
|---|---|
| Record ID | 61491 |
| Personal Name Creator |
Gibbons, Ronald B.; Meyer, Jason E.; Terry, Travis N.; Bhagavathula, Rajaram; Lewis, Alan; Flanagan, Michael; Connell, Caroline |
| Corporate Creator | Virginia Tech Transportation Institute |
| Corporate Contributor |
United States. Federal Highway Administration. Office of Safety Research and Development |
| Publisher | Turner-Fairbank Highway Research Center; United States. Federal Highway Administration |
| Publication Date | 20150801 |
| Language | English |
| Abstract | This project is a complete investigation of the impact of light-source spectrum on driver visual performance. In a series of human factors experiments, the effect of overhead lighting and headlamp spectral power distribution was evaluated with respect to driver detection and recognition of large and small objects and pedestrians. The potential for applying mesopic multiplying factors to roadway lighting was also evaluated, as was a momentary peripheral illuminator system’s effects on driver visual performance and eye-glance behavior. The results indicate that, although the momentary peripheral illuminator improved one measure of pedestrian detection, it was also a distraction to drivers. The results also indicate that at higher speeds, neither light-source spectrum nor mesopic multiplying factors apply, but mesopic multiplying factors are applicable to lighting design for lower-speed roadways and other nondriving environments. |
| Rosap ID | dot:35871 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/35871 |
| TRT Terms | Driver performance; Drivers; Evaluation; Eye movements; Headlamps; Highway safety; Human factors; Street lighting; Vision |
| General Subjects | Highways; Safety and Human Factors; I83: Accidents and the Human Factor; Light sources; Spectral effects roadway lighting; Roadway safety; Lighting levels; Lighting and safety |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
01576250 |
| Contract Number | DTFH61-10-C-00032 |
| Report Number | FHWA-HRT-15-047 |
| Availability | Federal Highway Administration |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/61000/61400/61491/15047_2.pdf |
| Format | |
| Database | NTL Digital Repository |