08-16-2017, 06:24 PM
(This post was last modified: 08-16-2017, 06:24 PM by danbrotherston.)
(08-16-2017, 04:40 PM)Viewfromthe42 Wrote: You could get by with a 4-element light with straight and left arrows at the bottom. Would mean that cars turning right had to stop before going, unless you went to 5-element lights, but might not be the worst for pedestrian areas, assuming any drivers understood the effect of a 4-element light in that scenario.
I'm also surprised that with the advent of LEDs, we don't have LED lights capable of showing pure green (for any movement allowed), or only an arrow or multi-arrow (for more limited movements allowed).
I am quite sure that is all possible technically, and with LEDs every type of shape could be shown.
I am not sure that such a thing is permitted under the HTA and associated guides. But I'm not a policy expert, I am just assuming as I have never seen a fully protected left turn without a dedicated left turn signal.