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(the Institute of Transportation Engineers) began recommending (right turn on red) as a fuel saving measure in 1986. ITE rescinded that guidance in September 2019, writing:

"The existing [recommendation] fails to provide a sufficiently robust analysis of the impacts, especially with regards to the potential impacts on the safety of using ."

ITE's full statement on rescinding the RTOR recommendation:

ite.org/pub/?id=B59F0054-B3AE-

1/

So, since first recommending the use of right turn on red in urban settings 37 years ago, ITE has determined a) they don't know whether allowing RTOR was safe for pedestrians, b) there was never enough data to support allowing RTOR, and c) it's no longer OK to prioritize traffic flow over safety.

The notion of getting rid of RTOR is becoming increasingly popular, with multiple media outlets arguing for its demise (e.g., motherjones.com/environment/20)

2/

Yet in most US states, turning right on a red light is still allowed by default.

There's no evidence does what it was meant to do: save fuel.

There is evidence that it increases the risks to pedestrians even when (especially when) they are using crosswalks and following traffic signals.

There's widespread acknowledgment that our longstanding focus on traffic flow kills people.

Why are we still turning right on red? This is the lowest of the low hanging fruit. Ban .

@DrTCombs I had no idea it was originally meant to save fuel.

@ascentale yep, and we *still* have strident environmentalists claiming that having to wait for pedestrians is bad for the environment because it makes them burn more gas

@ascentale Much of today's "we mustn't do anything to cause congestion" thinking is rooted in the gas crisis of the 70s. Since then the spectre of congestion has been (misguidedly) attached to so many counterproductive urban transportation policies. It's a *very* handy boogeyman.

@DrTCombs
Urbanists need to reclaim congestion:
"Yes, the neighborhood was congested. It was congested with jobs, apartments, workers, shoppers, and businesses. Cities cannot function without congestion."
@ascentale

@DrTCombs @ascentale So much worry about congestion, so little support for trains, buses and other means of getting cars off the road.

@DrTCombs @ascentale Which begs the question of why a strident environmentalist is driving an internal combustion engine....

@DrTCombs Meanwhile, Alaska DOT still up here creating *new* death traps where motorists can bypass the light entirely, tripling the number of pedestrian crossings in any given direction. These intersections were just "improved" in the last couple years. And biking them is nearly impossible. "But look, we gave you 'refuge islands'." In hell traffic engineers spend eternity on the other side of the windshield from their worst designs. #CarCulture

@DrTCombs I'd like to see us introduce turn right on red here. As a country that drives on the left, it should introduce motorists to the fear and unpredictability that that we face when not in car.

I'm fully against introducing turn left on red.

@DrTCombs RTOR helps prevent vehicles from idling at a stop sign / stop light. The environmental impact of idling engines has been widely studied, and with those figures in mind RTOR makes great sense.

@DrTCombs Traffic lights need to do more to recognize when there is a danger and turn green if you can safely go. Self driving cars prove we can see cars, bikes and pedestrians (mostly), put the same technology on traffic lights and now we can save fuel by having it turn green before you arrive when it is safe and you have slowed down to a reasonable speed (something else that can be sensed - want to enforce speed limits, just ensure that someone who drives the limit has less red lights!). Many traffic lights around me have various barriers that a driver cannot see through/around easily so the cameras/sensors can be put where it drivers cannot see and so get a better understanding of what is going on.

@bluGill Cameras are actually still pretty bad at recognizing pedestrians though, whether they are on cars or on poles. And they are bad systematically, and they can be hacked. Clarifiying and simplifying the rules such as "red means don't go, always" would do a whole lot more to improve safety.

If traffic lights aren't in a location where drivers see them, that's a different problem that ought to be reported as an emergency.

@DrTCombs

Something I absolutely fail to understand : whenever I have to drive (which is very often), when I am waiting at an intersection, anyone standing on the corner waiting to cross, almost every single time, waits until the light has changed and crosses against the light.

In other words, they will wait, and wait, and wait, while the car traffic crosses the intersection in the direction they want to cross. Then, when the light has changed to allow car traffic in the cross-direction, they will start out into the intersection.

Now, I've crossed against a light plenty of times, when it was safe to do so (there are badly-timed lights near me that virtually demand this), but not like that. I'm at a loss.

@tsukkitsune This is not a thing I have encountered before, and is indeed perplexing.
However, people on foot will generally take whatever action they perceive to be the most rational response to their situation, so maybe there's more going on than is obvious from the road? I honestly don't know! Gotta be a reason though.

@DrTCombs
Idle thought: if more cities ban RTOR, will more cities abandon signalized intersections and switch to roundabouts? RTOR can be convenient in some places, but usually where a roundabout would do a better and safer job.

@DrTCombs the main issue I see with this is that people already turn right on red even where it's not legal, and, at least where I live, traffic enforcement is almost non existent already, so adding another traffic crime is unlikely to change people's behavior.

Like, people here have learned you can run red lights with impunity (apart from the occasional t bone collision I suppose) so most people here already reflexively wait a couple seconds after green to go.

@DrTCombs all of which to say that while it probably makes sense to change it, it's not going to matter for years and years, if ever, unless there's a robust and aggressive effort to ticket it once it's illegal again.

Should also add I'm not actually a big fan of the current way traffic infractions are handled, or the police in general, so...

@etherdiver I definitely agree re policing of traffic infractions.

re RTOR, much of the problem does, I think, come from the lack of standardization. "Allowed by default except where they're not allowed" is just bad practice. In most of the rest of the world, red means you don't get to go. And it works. I agree it'll take us time to get there, and to make it truly effective we need to change the physical designs of our intersections, but we need to at least start down that path.

@DrTCombs
The city I work in has done away with right turn on red entirely. Every traffic light has signs reminding out of towners of the rule. As someone who doesn't drive, it's nice that I don't have to worry as much as a pedestrian. However I still see drivers attempting to turn when they shouldn't be.

@DrTCombs I have never understood how it was supposed to work.

We (UK) have some junctions where it would kind of make sense for left turn (we drive on the left) to be allowed for more time than going straight on or turning across the traffic. Those roads have filter lanes, with separate lights. It seems to work fine and upholds the simple rule of red = wait.

@DrTCombs it’s going to really suck having to adapt to this, but it is definitely safer.

@DrTCombs I feel like 1/5 of my Mastodon posts are about how AWFUL the right on red rule is. As a European who'd never seen RoR before moving here, it's still feels as ludicrous as it felt the first time.

The good news: Montreal has banned it ENTIRELY in the whole island.
The bad news: The rest of Canada & US driving into Montreal still do it and catch us off guard.

I've chased a few Ontario and NY license plates down the road already...

@DrTCombs automate it. Require a stop but if the vehicle has the equipment to know if it's safe let it make the turn. Honestly, you could do the same with slowly rolling through stoplights with the right equipment on hand. We're not quite there yet but we will get there.

@mkaatman it'll be decades before all vehicles on the roads are automated, and until then, we can't have different rules for different vehicles. it'd be absolute mayhem.
when we do get there, lights may be obsolete (for better or worse). until then, we must design with the least attentive driver in mind.

@DrTCombs Good. I’ve e not ever run anyone down, but I’ve pissed off one or two.

@DrTCombs Carter-era "Drive 55" was super in so many ways, including saving lives. PA Turnpike instead raised the speed limit to 70 mph. Whether ICE or EV, 55 is better!

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