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The intersection farther down in this video also has FRA (time of day based) PPLTs, which replaced a shared doghouse setup in the late 2010s. I think DE allows them in their State MUTCD, but like NJ, it's rarely used if at all.

Interesting to know, I've only been within Baltimore County and the City of Baltimore (basketball games at UMBC and Towson) in all of my Maryland visits so far, so wasn't aware of this.

Especially in this case where visibility is good, it allows for simple two phase operation here. Not sure how many more examples of these exist in the State of Maryland asides from the two I know of.

There used to be another one with a similar configuration in Merrimack on the western terminus of Industrial Dr, but when NHDOT retro-reflectived the intersection, they replaced the minor street signals with ones typically used for split phasing.

Thanks! I'm also going to have to do a 1080p60 test too with my previous camera, which was a Sony ILCE-6000 I've been using for years to see which one has the better quality. As for the variable NTOR, I'm not sure if I heard anything about this installation as I kinda saw this by surprise passing by. That whole intersection is timed very poorly on the Alewife Brook Pkwy side, so hoping they actually do something about this bottleneck as part of the Alewife Sta rehabilitation as well as make it better for peds and cyclists navigationally.

I think the controller and cabinet is pedestal mounted

I like lead/lag on FYA - one's coming to my hometown later this year (as part of a traffic signal replacement project), will be interested to see how drivers react to the new setup!

My guess is because people don't see the signal, especially since it's mostly flashing green at rest unless a pedestrian presses the button. People also run the older red+yellow signals as well too, though both are starting to be phased out with more modern signals.

Sure indeed, though most of these are starting to be phased out in favour of modern signal phasing. I actually caught this one by surprised on an unrelated visit a few weeks ago, so I had to actually see it in person when I had the time!

Yeah I was surprised when I saw that when taking a look at this signal. This is a 30+ year old controller so I’m not sure what features it was programmed with. I think this signal may be slated for removal in the long run with the upcoming downtown revitalisation.

13 of the 14 signals in Sanford are currently being replaced by MaineDOT as part of replacing 210 signals statewide for their BUILD GRANT… some of the controllers I’m told are upwards of thirty years old at this point. This signal in this video is not being replaced by the DOT project.

Yeah I think this might have been a contractor mistake of putting the wrong signal and/or lenses in. IIRC, should just be a simple fix of replacing the lenses or LED modules. The old signal had all left turn arrows BTW.

I want to say there are very few around the Nashua, Manchester or Concord areas too, but I’m not entirely sure. Manchester or Nashua might be a better bet since a few of their signals look older, Concord has replaced a lot of signals with new equipment last time I went in 2022.

I live in Manchester and have yet to see one here. Within the past 5-6 years, it seems like they’ve cleaned up the remaining ancient equipment. I’ve never seen it active to confirm, but I suspect the fire station on Mast Road in Goffstown has one though. It has an obvious ring of separate LEDs around the red

@@hawktheengineer actually if i recall correctly, there’s a similar configuration with the left turn signal being all circular in Hudson at Derry Rd, Library St and Highland St, with a 3M signal on SB Derry Rd. Runs independently with its own phase… going to have to tape that soon next time I’m in Nashua.

@@hawktheengineer At least in Dover/Portsmouth so far, there’s been a push to upgrade the signal controllers to the latest ATC standard (on non-NHDOT maintained signals) which also includes replacing other equipment and putting those yellow retro reflective strips on the signal backplates too.

⁠@@FwyDriver It’s been a while since I’ve been down in the Hudson area, but I do recall seeing what you described. Hopefully still alive and well.

I was trying to put my tripod in a good position to capture as much as possible, and unfortunately it ended up so close to the APS button…

I put a 311 request too a few days ago before I posted this too, hopefully the signs get installed soon!

No Turn on Red signs have been installed on both approaches, see pinned comment

To restrict right turn movements when necessary independent of the through movement.

Doghouse it is! It was just unusual that it was operating as a seperate signal in fully protected mode rather than in protected-permissive mode (shared or Dallas phased).

yep, I call these "Protected Doghouses".

Studies show the opposite of what you believe

Wrong. Flashing yellow always meant proceed with caution, but does not require a stop.

@ Proceed with caution, no requirement to stop - but never a requirement to yield - until now.

@@ElmerCat Left turn on flashing yellow ball is required to yield to oncoming traffic, so flashing yellow left arrow is the same.

The FYA only eliminates yellow trap if they are installed and phased correctly. Since the opposing traffic is a single lane approach, a W25-1/2 sign or a(n) FYA 5-section signal with the correct overlaps should be installed on that approach. Split phasing will also work as well, though I'm not too familiar with how this intersection performs in the rush hours. Fully protected lead lag may not work given that the other approach is only a single lane as well.

@@FwyDriver yeah that makes a lot of sense. A 5 section FYA seems to make sense!

Yeah, I was suprised to see an actual double permissive left turn close to where I live (especially in MA), as 99% of the time those kind of movements are set to fully protected or split phased. The opposing traffic is yellow trapped however, opposing signals are just circular green. At least there is little to no pedestrian conflict here as it's exclusive ped. But yeah, too many things happening with a wide intersection to make it safe.

@@FwyDriverDo they at least have a “Oncoming Traffic May Have Extended Green” sign for the yellow-trapped approach? If not, that’s a MUTCD violation.

I was looking at this intersection on street view, and it looks like it used to run split phase. Does the oncoming “circular green” approach have a dedicated left-turn lane? If it does, they could run it “lead/lag” as @TheTrafficTech suggested.

So, I went back to look at this intersection yesterday for a second time just to look at some other attributes. The oncoming traffic is a single lane approach and no, it does not have a W25-1/2 sign on the yellow trapped approach. Exclusive pedestiran phase as well.

I thought I recongised that intersection en route to Peabody/Salem the other day! It was the fact the left turn signal were all circular that caught me off guard initially.

I assume this is temporary. I bet it’s meant to be a FYA signal for some strange conflict reason

Since the approach is listed as a “straight” and not a “right” movement, I’d assume it’s automatically one even with no NTOR sign. Since the old “right” turn signals were both a doghouse and an inline-5, I’d assume there may be a phase where the FYA would flash in the future.

@@FwyDriver but I can’t tell, is that sign hidden by the nearside signal a NTOR ?

There are two R3-5 (Left Turn Only) signs and one R3-5a (Straight Only) signs on the mast arm.

@@FwyDriverdisappointing

Unfortunately, I'm even farther away from this location - I only taped this signal since I was down in Woodbridge for basketball games at the time (Rutgers and NJIT). My apologies!

WTF??!! YOU LIVE IN NY OR SMTH?

Intersting how their FRAs permissive phase (overlap) is not tied to the opposing thru green like FYA to prevent yellow trap, though I only saw three at the time of this video (this one, one near either Baltimore or UMBC, and another one near BWI). I'm not familiar with how FRA works though I'd imagine modern installations would be similar to FYA and their overlaps.