News for hackers. Stuff that matters.

A comment on In 2019 40% of San Francisco traffic fatalities are from left turns. Parent comment

Re:In 2019 40% of San Francisco traffic fatalities are from ... by kelnos on Monday December 06, 2021 @07:34PM (#29467722)
That's seems unnecessarily confusing. Why even bother with the red arrow at all then? I guess it could be useful in cases where the straight-through traffic is green, but you want right-turning traffic to stop before turning, but is that common? Or even a useful thing? Like, I feel like if you've set things up that way, maybe the intersection is just designed poorly.
[ Parent | on HN ]
Re:In 2019 40% of San Francisco traffic fatalities are from ... by mypalmike on Monday December 06, 2021 @07:58PM (#29467915)
It is definitely confusing. In Washington state, right red arrow does not prohibit turning on red. I learned this after people started beeping at me to go at such an intersection. And yes, that intersection (Queen Anne and Mercer in Seattle) is confusing and poorly designed.
[ Parent | on HN ]
Re:In 2019 40% of San Francisco traffic fatalities are from ... by toast0 on Monday December 06, 2021 @11:07PM (#29468974)
I don't think I've seen many intersections with red arrows unless there is a dedicated turn lane, where green yellow and red are all arrows. If it's a right turn in a right on red jurisdiction, without a sign expressing no right on red, why would red arrow be different than red circle?
[ Parent | on HN ]
Re:In 2019 40% of San Francisco traffic fatalities are from ... by sokoloff on Monday December 06, 2021 @08:31PM (#29468155)
MA allows right on red arrow after stop (absent a sign to the contrary). There are intersections where right on red is prohibited to protect a pedestrian walk phase that’s aligned with the green for straight ahead traffic.
[ Parent | on HN ]