Traffic signal

[jakeroot]

Kern county is phasing them out too
...
Another intersection before:
https://www.google.com/maps/@35.4265116,-119.0124059,3a,75y,7.81h,94t/data=!3m7!1e1!3m5!1s5MlDKLCdUP64cosZvzWLQQ!2e0!5s20220401T000000!7i16384!8i8192?entry=ttu
After:
https://www.google.com/maps/@35.4265082,-119.0124093,3a,75y,7.81h,94t/data=!3m7!1e1!3m5!1s1N_zfncZeFibXWw-mt5clQ!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3D1N_zfncZeFibXWw-mt5clQ%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D208.85532%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192?entry=ttu

This intersection was quite unusual, the approach that had the median-mounted left turn signal also had two overhead through signals (for only two lanes) and no far-right supplemental signal. In most states this is normal, but California always uses "through [lanes] minus one" for overhead signals, with a far-right mast-mounted through signal in its place; intersections without far-right supplemental signals are very, very rare. The current setup is California-standard, with only a single overhead through signal (but three total, including the stop-line signal).

[SilverMustang2011]

Does anyone know if any Florida cities/towns still use 12-8-8 signals? Minus Key West anyway since they have several 8-8-8 signals. I'm from Tampa, which used to have a couple dozen but they all got replaced with 12-12-12s between roughly 2010 - 2014. Interestingly, a lot of said replaced signals have subsequently been replaced by mast arms. This intersection is a good example:

- 2008 GSV: https://goo.gl/maps/KUeCeDZMP8uZbnHr6
- 2011 GSV: https://goo.gl/maps/N9vwq1W2HyQsPjxE8
- 2022 GSV: https://goo.gl/maps/gj1xs4MQ8MRnEfsk8

[SignBridge]

Does anyone know if any Florida cities/towns still use 12-8-8 signals? Minus Key West anyway since they have several 8-8-8 signals. I'm from Tampa, which used to have a couple dozen but they all got replaced with 12-12-12s between roughly 2010 - 2014. Interestingly, a lot of said replaced signals have subsequently been replaced by mast arms. This intersection is a good example:

- 2008 GSV: https://goo.gl/maps/KUeCeDZMP8uZbnHr6
- 2011 GSV: https://goo.gl/maps/N9vwq1W2HyQsPjxE8
- 2022 GSV: https://goo.gl/maps/gj1xs4MQ8MRnEfsk8

Wow, that Florida mast-arm looks identical to some recent New York State DOT installations. Very crude looking, but I guess cost-effective.

[SilverMustang2011]

Does anyone know if any Florida cities/towns still use 12-8-8 signals? Minus Key West anyway since they have several 8-8-8 signals. I'm from Tampa, which used to have a couple dozen but they all got replaced with 12-12-12s between roughly 2010 - 2014. Interestingly, a lot of said replaced signals have subsequently been replaced by mast arms. This intersection is a good example:

- 2008 GSV: https://goo.gl/maps/KUeCeDZMP8uZbnHr6
- 2011 GSV: https://goo.gl/maps/N9vwq1W2HyQsPjxE8
- 2022 GSV: https://goo.gl/maps/gj1xs4MQ8MRnEfsk8

Wow, that Florida mast-arm looks identical to some recent New York State DOT installations. Very crude looking, but I guess cost-effective.

They've been installed all over Tampa, I'm pretty sure I could send in 15 GSV links of them. Cost-effective like you said since it's all on one arm, and I would think it's better against storms than the older span wires they replace. They definitely lead to some....interesting looking installations though.

[SkyPesos]

Interesting signal pattern I found today. It's on Page Ave just west of the I-170 interchange in the St Louis area. The design has 4-bulbs, with straight and right turn arrows. Normally, MoDOT uses those when both arrows light up at the same time. But in this case, it's also used for protected right turns while the straight movement is red.


Green right arrow only. Note red ball on overhead signal


Yellow ball when that green right arrow turns red. A bimodal green/yellow right arrow would be the equivalent that's more commonly used in some other states.

[roadman65]

https://goo.gl/maps/wvBF6AU2Brij2GXJA
I see the two section pedestrian heads are still being used.

The signal is part of a very recent DDI project in Woodbury, NY.

[roadfro]

https://goo.gl/maps/wvBF6AU2Brij2GXJA
I see the two section pedestrian heads are still being used.

The signal is part of a very recent DDI project in Woodbury, NY.

Two-section ped heads are still allowed per MUTCD. But I'd guess probably 90% (or greater) of agencies choose the single-section combined display for new installations nowadays.

Zooming really close, it looks like the top section is combined hand/walking man symbols and the bottom is the countdown, which is also an allowable display (but again, seems rare for new installs and was likely more common for retrofitting countdowns into existing installations).

[jakeroot]

I would be curious to know which agencies install two-head ped signals.

Off the top of my head:

* Washington DC (DDOT) definitely uses two-head ped signals; typical setup seems to be WALK with an always-on countdown on the lower display.
* British Columbia MOT uses two-head ped signals, though some agencies use single-head ped signals (Vancouver proper for example).

Besides BC, I don't think any other agencies in the Pacific Northwest use two-head ped signals.

[roadman65]

https://m.facebook.com/story.php?story_fbid=pfbid0baH4bGTwh7KysMqsySgDUVM5L6brEdNqA4A87zi75GgKKL3fKPYpBdsBv6Z1smxHl&id=100063566321766
Something of a novelty to use, but in reality it may work.

[Caps81943]

I would be curious to know which agencies install two-head ped signals.

Off the top of my head:

* Washington DC (DDOT) definitely uses two-head ped signals; typical setup seems to be WALK with an always-on countdown on the lower display.
* British Columbia MOT uses two-head ped signals, though some agencies use single-head ped signals (Vancouver proper for example).

Besides BC, I don't think any other agencies in the Pacific Northwest use two-head ped signals.

Virginia still uses two-head in I believe all but the district that includes the Fredericksburg area. Localities are about a 50/50 mix I would say.

[fwydriver405]

Interesting.........where is the recent flashing green installation in Quincy?

Could this be the one? If so, this is on School St at Hancock St:

https://www.youtube.com/watch?v=3hhhyUuWb8c

Update on this signal. Passed by it last Friday and the flashing circular green was changed back to a flashing circular yellow, like it was with the older signals. I'll post a video and update this when I get the chance.

[SignBridge]

Interesting.........where is the recent flashing green installation in Quincy?

Could this be the one? If so, this is on School St at Hancock St:

https://www.youtube.com/watch?v=3hhhyUuWb8c

Update on this signal. Passed by it last Friday and the flashing circular green was changed back to a flashing circular yellow, like it was with the older signals. I'll post a video and update this when I get the chance.

I'm sorry they changed it back to flashing yellow. I actually liked the flashing green though I admit it serves no real purpose. Also, re: the side street signal, how can it go from flashing yellow to steady-red? Doesn't the MUTCD require a steady-yellow change interval?

[PurdueBill]

Interesting.........where is the recent flashing green installation in Quincy?

Could this be the one? If so, this is on School St at Hancock St:

https://www.youtube.com/watch?v=3hhhyUuWb8c

Update on this signal. Passed by it last Friday and the flashing circular green was changed back to a flashing circular yellow, like it was with the older signals. I'll post a video and update this when I get the chance.

I'm sorry they changed it back to flashing yellow. I actually liked the flashing green though I admit it serves no real purpose. Also, re: the side street signal, how can it go from flashing yellow to steady-red? Doesn't the MUTCD require a steady-yellow change interval?

A new flashing green appearing in Massachusetts was quite the thing while it lasted...so many have gone away over the years. 
There is a problem with all directions having yellow at the same time that they probably wanted to avoid, although there were bigger problems like the main drag having flashing green while the side street had flashing yellow at the same time--yikes! The old setup (which included fun 12-12-8 and 12-8 signals) had a 12-inch red at the top for steady and an 8-inch red for flashing for the side street as I recall...no yellow at all.

[roadman65]

https://goo.gl/maps/ts6QEzY3JEzj6Qs17
What signal companies manufacture the infamous NYC click boxes?

[SilverMustang2011]

Found two all-8 inch traffic light on GSV in Jacksonville, FL today one block away from each other:

https://goo.gl/maps/3CjyNEmN2eEpEgfA8

https://goo.gl/maps/DuD6cVzmeas68mXC9

Mildly interesting since outside of Key West, 8 inch signals in Florida are few and far between. This state also loves to replace/modernize traffic signals, but here the mounting hardware and a couple of the signals appear to have been there for a while.

[roadman65]

https://goo.gl/maps/pruj3jTib9cCS4Bf8
Interesting green arrows with a second unlit section.

[Big John]

https://goo.gl/maps/pruj3jTib9cCS4Bf8
Interesting green arrows with a second unlit section.

Seen that in New York before.  I believe the upper section is a yellow light in case it goes into flash mode.

[bcroadguy]

I would be curious to know which agencies install two-head ped signals.

Off the top of my head:

* Washington DC (DDOT) definitely uses two-head ped signals; typical setup seems to be WALK with an always-on countdown on the lower display.
* British Columbia MOT uses two-head ped signals, though some agencies use single-head ped signals (Vancouver proper for example).

Besides BC, I don't think any other agencies in the Pacific Northwest use two-head ped signals.

I'm pretty sure NYSDOT and several cities in NY still use two-head pedestrian signals. Other than there and DC, I can't think of anywhere else in the US that still uses them. Many states still have older two-head pedestrian signals though.

Vancouver used to use two-head pedestrian signals (2009 StreetView), but instead of the orange hand being on top of the walking man, the hand was to the left of the walking man. Victoria (which now uses the 16" pedestrian signals common in the US and Vancouver) used to do the same thing according to some old 1980s photos I can't find right now.

Coquitlam, BC is actively replacing 16" pedestrian signals with two-head 12" pedestrian signals. This is the opposite of what is happening in the US.

[SilverMustang2011]

I would be curious to know which agencies install two-head ped signals.

Off the top of my head:

* Washington DC (DDOT) definitely uses two-head ped signals; typical setup seems to be WALK with an always-on countdown on the lower display.
* British Columbia MOT uses two-head ped signals, though some agencies use single-head ped signals (Vancouver proper for example).

Besides BC, I don't think any other agencies in the Pacific Northwest use two-head ped signals.

I'm pretty sure NYSDOT and several cities in NY still use two-head pedestrian signals. Other than there and DC, I can't think of anywhere else in the US that still uses them. Many states still have older two-head pedestrian signals though.

Vancouver used to use two-head pedestrian signals (2009 StreetView), but instead of the orange hand being on top of the walking man, the hand was to the left of the walking man. Victoria (which now uses the 16" pedestrian signals common in the US and Vancouver) used to do the same thing according to some old 1980s photos I can't find right now.

Coquitlam, BC is actively replacing 16" pedestrian signals with two-head 12" pedestrian signals. This is the opposite of what is happening in the US.

This intersection in Maitland, FL (Suburb of Orlando) has three two-head and one single-head pedestrian signals. It's the only place I know of in FL that hasn't phased them out.

https://goo.gl/maps/Y4kVEASko4MY9RuA7

[D-Dey65]

I just found out about this one in the Forest Hills section of Queens;
https://www.google.com/maps/@40.7176978,-73.8410104,3a,75y,329.97h,89.86t/data=!3m6!1e1!3m4!1s31uNNAiwZaJR3A8ZmkkyEQ!2e0!7i16384!8i8192?hl=en&entry=ttu
I've been struggling to sort out the categories for specific apartment buildings in that section of the Five Boroughs.

[Revive 755]

I would be curious to know which agencies install two-head ped signals.

Not sure any of the following still use two-section ped signals:

* Iowa City, IA
* Bloomington, IL
* Champaign, IL
* They were used on IL 15 through Mt. Vernon when the signal were upgraded to using flashing yellow arrows.
* Belleville, IL

[CJResotko]

Found these McCain PV beacon clusters in Grand Ledge, Michigan.
https://youtu.be/BO5hrMrtrpY

[RoadsByArco]

does anyone know how state agencies determine where traffic signal structures are typically placed? caltrans txdot fdot and other dots seem to all have different standards? does anyone know how they know whether to place the traffic signal on the sidewalk or outside? thanks

[Rothman]

does anyone know how state agencies determine where traffic signal structures are typically placed? caltrans txdot fdot and other dots seem to all have different standards? does anyone know how they know whether to place the traffic signal on the sidewalk or outside? thanks

Heh.  Sometimes, it's just a matter of where they'll squeeze in.  Just was working on a project where surveys from a few decades ago misplaced the highway boundary (just using a general distance from the centerline rather than actual property ownership...oy vey) causing just this sort of issue.  NYSDOT likes to avoid ROW takings for typical projects due to their adding another year into the project schedule, so engineers just figure out what they can get away with.

[SignBridge]

California usually hangs the overhead signal arm from a street light pole. New York State DOT and Nassau County DPW typically site the poles wherever they will fit and still be positioned properly related to the dimensions/geometry of the intersection.