Citation

Roper VJ. Highw. Res. Board bull. 1962; 336: 114.

Copyright

(Copyright © 1962, National Research Council (U.S.A.), Highway Research Board)

DOI

unavailable

PMID

unavailable

Abstract

Test data are reviewed to attempt to correlate relationship of visual acuity and the ability to detect low-contrast differences at night. The best combination from the standpoint of nighttime driving safety is excellent acuity plus excellent ability to detect low-contrast differences at night. The author contends that the latter is the more important. It is concluded that more data are needed.