To search an exact document title or key phrase, place quotations around the text. Example: "U.S. Government Grade Crossing Research & Stakeholder Engagement" Entering keywords without quotations will search the eLibrary for all occurrences of the keywords.
Railroad Signal Color and Orientation: Effects of Color Blindness and Criteria for Color Vision Field Tests
Keywords: Railroad Signals; Signal Color; Signal Orientation; Medical Standards for Color Vision for Locomotive Engineers and Conductors; Color Vision; Color Vision Field Tests; Pseeudoisochromatic Plate Tests; Human Error; Signal Detection Theory
Abstract: This report concerns two issues: 1) whether color vision is necessary for locomotive crews who work on railroads where the signal system is either completely redundant with regard...