Visual factors in transportation systems : proceedings of Spring Meeting, 1969 NAS-NRC Committee on Vision.

Papers presented at the conference relating to highway transportation systems were: W.C. Neidig: Visual problems of truck and bus drivers. W.M. Heath: Visual problems in automobile driving. T.W. Forbes: Factors in visibility and legibility of highway signs and markings. Mortimer, R.G.: Requirements for automobile exterior lighting. Finch, D.M.: Factors in highway lighting.