AARoads Forum

National Boards => General Highway Talk => Traffic Control => Topic started by: MCRoads on July 25, 2020, 03:57:22 AM

Title: Left turn yield lines in Tucson (and US) intersections?
Post by: MCRoads on July 25, 2020, 03:57:22 AM
I remember seeing an image of such a setup, very similar to what South Africa does, but I cannot find it. Do they still have this setup? If so, where?
Title: Re: Left turn yield lines in Tucson (and US) intersections?
Post by: Ned Weasel on July 25, 2020, 08:59:01 AM
Quote from: MCRoads on July 25, 2020, 03:57:22 AM
I remember seeing an image of such a setup, very similar to what South Africa does, but I cannot find it. Do they still have this setup? If so, where?

https://www.aaroads.com/forum/index.php?topic=27213.msg2519070#msg2519070
Title: Re: Left turn yield lines in Tucson (and US) intersections?
Post by: jakeroot on July 26, 2020, 11:46:26 AM
Popping into to say that the right edge to the yield lines are white, but were once yellow.

This really is only important for two reasons:

(1) they are actually looking into how they are used, and decided that a color change was necessary (i.e. they weren't a one-and-done thing); and
(2) they have been repainted. This is usually a sign that the lines were a moderate success.

If I had one issue with the yield lines (along Speedway), it's that the left turns are now FYA signals that seem to operate with time-of-day phasing. In other words, the yield lines are worthless during large chunks of the day.
Title: Re: Left turn yield lines in Tucson (and US) intersections?
Post by: jakeroot on July 26, 2020, 11:47:02 AM
Here's the whole quote for all interested:

Quote from: jakeroot on July 23, 2020, 05:24:15 PM
On Speedway specifically...

Speedway is the only road in the country, from what I've seen, that has any painted "yield" lines for traffic turning left. They are seen at a few intersections north of U of A.

They are not the typical "sharks teeth" that you might otherwise see where you're supposed to yield, but the more typical block markings seen in other countries like Japan or South Africa.

For this reason alone, Speedway will always have a special place in my heart. Whoever's in charge of things down there... +1 for creativity.

(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FhXBZuOx.png&hash=4eb848b4104fb9d5bbf31216b623cf37fbf35e0f)