Unique Traffic Light Mounts

[UCFKnights]

I didn't see any existing thread for this, so feel free to point me in the right direction if it exists, but I'd like to see all the unique ways of mounting traffic signals. Post your unique mast arms that you have seen! (No standard round or square arms, and no span wires, they aren't unique)

For example, Orlando on OBT uses a truss design, sometimes as a full square:
https://www.google.com/maps/place/S+Orange+Blossom+Trl,+Florida/@28.4725032,-81.3961248,3a,90y,277.54h,117.69t/data=!3m7!1e1!3m5!1sj02_HVstfnzdvN6vcteDZA!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fcb_client%3Dmaps_sv.tactile%26w%3D900%26h%3D600%26pitch%3D-27.69176528048841%26panoid%3Dj02_HVstfnzdvN6vcteDZA%26yaw%3D277.5412212225725!7i16384!8i8192!4m6!3m5!1s0x88dd86ea57fc73bf:0xfd881432534e596b!8m2!3d28.4388005!4d-81.403941!16s%2Fg%2F11l193nm4p?entry=ttu&g_ep=EgoyMDI1MDgyNS4wIKXMDSoASAFQAw%3D%3D

Othertimes like this:
https://www.google.com/maps/place/S+Orange+Blossom+Trl,+Florida/@28.4762621,-81.3965778,3a,90y,253.58h,85.35t/data=!3m7!1e1!3m5!1sWlQJV089eZMB7Rj8Bn0miQ!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fcb_client%3Dmaps_sv.tactile%26w%3D900%26h%3D600%26pitch%3D4.652215946748115%26panoid%3DWlQJV089eZMB7Rj8Bn0miQ%26yaw%3D253.57794669737393!7i16384!8i8192!4m6!3m5!1s0x88dd86ea57fc73bf:0xfd881432534e596b!8m2!3d28.4388005!4d-81.403941!16s%2Fg%2F11l193nm4p?entry=ttu&g_ep=EgoyMDI1MDgyNS4wIKXMDSoASAFQAw%3D%3D


Winter Park uses these arms:
https://www.google.com/maps/place/Winter+Park,+FL/@28.5959062,-81.3509653,3a,90y,334.37h,97.45t/data=!3m8!1e1!3m6!1sGq8CS2EZyEpCDasosSPdww!2e0!5s20180601T000000!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fcb_client%3Dmaps_sv.tactile%26w%3D900%26h%3D600%26pitch%3D-7.448230799243262%26panoid%3DGq8CS2EZyEpCDasosSPdww%26yaw%3D334.3677443198459!7i16384!8i8192!4m6!3m5!1s0x88e7701bdba629c5:0xc63f82952cf5ee20!8m2!3d28.5949767!4d-81.3508787!16zL20vMHJwd3A?entry=ttu&g_ep=EgoyMDI1MDgyNS4wIKXMDSoASAFQAw%3D%3D

[freebrickproductions]

Winter Park uses these arms:
https://www.google.com/maps/place/Winter+Park,+FL/@28.5959062,-81.3509653,3a,90y,334.37h,97.45t/data=!3m8!1e1!3m6!1sGq8CS2EZyEpCDasosSPdww!2e0!5s20180601T000000!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fcb_client%3Dmaps_sv.tactile%26w%3D900%26h%3D600%26pitch%3D-7.448230799243262%26panoid%3DGq8CS2EZyEpCDasosSPdww%26yaw%3D334.3677443198459!7i16384!8i8192!4m6!3m5!1s0x88e7701bdba629c5:0xc63f82952cf5ee20!8m2!3d28.5949767!4d-81.3508787!16zL20vMHJwd3A?entry=ttu&g_ep=EgoyMDI1MDgyNS4wIKXMDSoASAFQAw%3D%3D

Guy-wire masts are/were more common in some parts of the country than they were down here in the southeast, from what I can tell. California is one such example.

[lepidopteran]

North Wales, PA. I'm told that this was formerly a BGS gantry somewhere.

https://maps.app.goo.gl/nS9SnCouR2JvKzZM8

[Scott5114]

In North Las Vegas, Las Vegas Boulevard is at such an extreme angle that it's easiest to have a gantry spanning the intersection diagonally with super long tunnel visors, since individual mastarms could be misinterpreted: Carey, Cheyenne, Craig

For example, Orlando on OBT uses a truss design, sometimes as a full square:

I have to wonder what the point of that is for such a small intersection (I can think of installations in Las Vegas with twice as many lanes still using standard mastarms), especially when the structure seems to block the view of the signal heads frequently enough that near-side signals need to be provided.

[Mr. Matté]

North Wales, PA. I'm told that this was formerly a BGS gantry somewhere.

https://maps.app.goo.gl/nS9SnCouR2JvKzZM8

I've seen other wide intersections in PA (but can't remember offhand where) where all the signals were mounted on a single gantry like that. I can't imagine the whole structure was an old BGS support on some freeway considering the size matches the road there and it would be too much effort to dig up the old vertical support and transport the entire horizontal span.

[kphoger]

In North Las Vegas, Las Vegas Boulevard is at such an extreme angle that it's easiest to have a gantry spanning the intersection diagonally with super long tunnel visors, since individual mastarms could be misinterpreted: Carey, Cheyenne, Craig

Reminds me a bit of Lincoln & Grove here in Wichita.

[SkyPesos]

Winter Park uses these arms:
https://www.google.com/maps/place/Winter+Park,+FL/@28.5959062,-81.3509653,3a,90y,334.37h,97.45t/data=!3m8!1e1!3m6!1sGq8CS2EZyEpCDasosSPdww!2e0!5s20180601T000000!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fcb_client%3Dmaps_sv.tactile%26w%3D900%26h%3D600%26pitch%3D-7.448230799243262%26panoid%3DGq8CS2EZyEpCDasosSPdww%26yaw%3D334.3677443198459!7i16384!8i8192!4m6!3m5!1s0x88e7701bdba629c5:0xc63f82952cf5ee20!8m2!3d28.5949767!4d-81.3508787!16zL20vMHJwd3A?entry=ttu&g_ep=EgoyMDI1MDgyNS4wIKXMDSoASAFQAw%3D%3D

Looks similar to the mast arms NYC uses at first glance.

[Scott5114]

In North Las Vegas, Las Vegas Boulevard is at such an extreme angle that it's easiest to have a gantry spanning the intersection diagonally with super long tunnel visors, since individual mastarms could be misinterpreted: Carey, Cheyenne, Craig

Reminds me a bit of Lincoln & Grove here in Wichita.

This one is particularly interesting because I don't think Kansas has ever used that gantry design on a wide scale (I think the Kansas Turnpike had one in Emporia up until about 10 years ago, but otherwise it's basically all Pratt or box trusses.)

[roadfro]

In North Las Vegas, Las Vegas Boulevard is at such an extreme angle that it's easiest to have a gantry spanning the intersection diagonally with super long tunnel visors, since individual mastarms could be misinterpreted: Carey, Cheyenne, Craig

I think another reason for this is that mast arms would be too far away from the stop lines for some approaches, due to the width of the intersection caused by the skew angle of Las Vegas Blvd.

A similar situation occurs in SW Las Vegas (unincorporated Clark County) with SR 160/Blue Diamond Road at its intersections with Valley View, Arville, and Decatur. These installations all incorporate some of the thickest monotubes I've ever seen.

Interestingly, they did not use this approach at Blue Diamond & Dean Martin Dr—traditional mast arms were used, but a second  nearside mast arm was used to repeat the signal indications for the northbound Dean Martin direction to alleviate sight distance concerns (curiously, this wasn't done for southbound).

[1995hoo]

I can think of two intersections around here with traffic lights mounted to gantries. In both cases, I find it quite striking to see in person because pictures don't really do justice to just how big the gantries themselves look.

One is on VA-286 at Sunrise Valley Drive in Reston just south of the Dulles Access and Toll Roads.

The other is on Stringfellow Road at Poplar Tree Road adjacent to Rocky Run Intermediate School. What I find notable there is that they used exceptionally large street signs but didn't mount them up on the gantry (compare to the other location linked above).

That square arrangement UCFKnights linked in the original post certainly looks strange.

[Scott5114]

A similar situation occurs in SW Las Vegas (unincorporated Clark County) with SR 160/Blue Diamond Road at its intersections with Valley View, Arville, and Decatur. These installations all incorporate some of the thickest monotubes I've ever seen.

The way the street name signs are repeated (presumably because no matter where they put them, one gets blocked by the humongous monotube) makes me laugh for some reason.

Road Guy Rob's videos on how wind affects signal installations features those particular installations. He hugs one.

[lepidopteran]

A similar situation occurs in SW Las Vegas (unincorporated Clark County) with SR 160/Blue Diamond Road at its intersections with Valley View, Arville, and Decatur. These installations all incorporate some of the thickest monotubes I've ever seen.

A little off-topic, but similar steroid-enhanced monotubes have been appearing on the Delaware Turnpike recently.

[Great Lakes Roads]

Dunlap & 25th Avenue in Phoenix.

[jay8g]

Then you have the Oregon thing of mounting signals directly on sign gantries alongside the guide signs. That intersection has both truss and monotube gantries with signals on them.