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New Jeep Grand Chicory

And so how should one respond differently to a blinker or a brake? Either one means "this car is slowing down" so its pretty much a moot point, especially since both rear lamps (and the CHMSL) are going to be simultaneously visible 99% of the time.

OTOH, seeing amber in limited visibility conditions implies "approaching vehicle" which is flat-out false in the case of amber rear turn signals. Meaning you have to rely on simultaneously seeing headlamps or taillamps to resolve THAT ambiguity. You're just trading one ambiguity for another, and I'd argue that the "signal or brake" ambiguity isn't particularly dangerous since you should assume that the car is slowing to a near-stop (at least) under either condition. The fact of the matter is that BOTH systems work perfectly well, both have done so for over 50 years, and I think you'd be hard-pressed to find a statistically different number of collisions based on the color of the rear turn signals, except for the "duelling reds" design you mentioned before. (That's your open invitation to prove me wrong.) :-)

Reply to
Steve
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International agreements, (yes the USA signed and ratified it) mandates that amber just be used for flashing lights, front and rear and side. If the USA followed that treaty requirement there would be no issue of having to guess if a yellow light in the fog was the front or rear of a vehicle, it would unambiguously tell you that a vehicle is either flashing a turn or if both are flashing, that the vehicle is either very slow or parked. Instead, the USA lets the car makers do whatever they want.

Has anyone done a study to show that our assumptions about amber being safer is valid?

Richard.

Reply to
Richard

Front fogs are white, rear fogs are red (in an offset position) and amber is for turning -- Europe.

There used to be yellow fog lights but very different to amber.

France used to have yellow headlights.

All standardised.

The only thing that isn't is whether headlights should be on during daylight.

DAS

Reply to
Dori A Schmetterling

Red for STOP, amber for TURN, white for REVERSE....no, that's too complicated.

Reply to
Ted Azito

Well, the rest of the world has it all figured out, but yeah, it does seem too complicated for America.

Reply to
Daniel J. Stern

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