e steamers. The steersman of B in both cases should see all the lights of A, and be warned of a steamer’s direct approach, whether he distinguished the colour of the side-lights or not. Fig. 3. But the steersman of A has only the colour of one of B’s side-lights, to tell him, whether, as in Fig. 2,… … Again, in Fig. 4, A and B will see each other's red light only, the screens preventing the green lights from being seen ; and both vessels passing to port. In Fig. 5, on the other hand, a Fig. 5. green light only will be visible to each, the screens prevent- ing the red lights from being seen; and…
Color Perception · Color Vision Defects · Accident Prevention · Accidents, Traffic
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