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Author Topic: Unusual Traffic Signals  (Read 52903 times)

rickmastfan67

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Re: Unusual Traffic Signals
« Reply #75 on: August 19, 2011, 10:57:39 PM »

Yea that's it, thx Rick and US71, sorry I did'nt have a picture. But glad someone knew what I was referring to! :D

Heh.  Well, believe it or not, SB US-17 in that area has 3 sets of them in that area (including the one I linked above), so I was pretty sure it was what you where talking about.

US71

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Re: Unusual Traffic Signals
« Reply #76 on: September 06, 2011, 02:36:33 PM »

Hopefully I'll have a photo later on, but Fayetteville, AR has just installed it's first Flashing Yellow Arrow signals at US 62 and I-540.
What makes it "unusual" is WB traffic has a FYA signal for traffic turning south on the east service road with NO green. It's Red Arrow, Steady Yellow Arrow, Flashing Yellow Arrow (no 2 in 1 arrows like Missouri).

EB traffic has a 2 left turn lanes and 2 thru traffic lanes, but no FYA.
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vtk

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Re: Unusual Traffic Signals
« Reply #77 on: September 07, 2011, 01:24:57 AM »

Most of us are familiar with those yellow signs that say "Prepare to stop when flashing" with the yellow flashing lights when the light is going to turn.  Other times, the yellow lights attached to the sign are off, right?  Well, very recently I noticed that the sign on NB US 42 in Delaware, OH approaching the London Rd signal, has those lights steady on when they're not flashing.  I haven't checked the MUTCD yet to determine if this is a permitted variation.  It might be some kind of malfunction, actually.  The SB sign works like all the other ones I've seen.
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Re: Unusual Traffic Signals
« Reply #78 on: September 07, 2011, 07:24:12 PM »

Yea that's it, thx Rick and US71, sorry I did'nt have a picture. But glad someone knew what I was referring to! :D

There are another two heading westbound on Nasa Parkway near the Kennedy Space Center Visitors Complex (which they think are located on Florida State Road 405, even through there's an END 405 shield just east of US 1 before crossing into Merritt Island).

Here's the easternmost one. Follow the road westbound to the next intersection for the second one.
http://maps.google.com/?ll=28.526227,-80.67908&spn=0.001704,0.001926&t=h&z=19&vpsrc=6&layer=c&cbll=28.526225,-80.678807&panoid=SaNliqchx2vK_sTeuO-Rug&cbp=12,259.62,,0,-1
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Re: Unusual Traffic Signals
« Reply #79 on: August 19, 2012, 05:22:58 PM »


Note: this is a composite of 2 photos.  The red and green signals were not displayed at the same time.

Fairwood Ave NB at Refugee Rd in Columbus, at the end of June this year.  I don't think that 4-box arrangement is allowed in the MUTCD.  Notice the SB approach has a similar arrangement (top left corner of photo).

A week later, those signalheads were rearranged to put the green circle and green arrow side by side on the bottom row.

A week after that, the thing was replaced by a "normal" doghouse assembly, with a 12" red and the rest of the lights only 8".

If they're having that much trouble with clearance under the signals, maybe they should raise the spanwire a bit…
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jcn

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Re: Unusual Traffic Signals
« Reply #80 on: November 03, 2015, 04:15:29 PM »

You know, I've noticed that the T-signals in Delaware are becoming less and less common as time goes on.  I wander if they eventually plan on getting rid of all the T-signals in the state.  Also, T-signals in Delaware are used for through/right turn traffic where the red light is on the top left, and the top right is a red right arrow that is very rarely lit.
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US71

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Re: Unusual Traffic Signals
« Reply #81 on: June 21, 2016, 05:58:46 PM »

I'm not sure if this is "unusual" or a major "oops"?
Hwy 291 at Commercial St in Harrisonville, MO




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Big John

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Re: Unusual Traffic Signals
« Reply #82 on: June 21, 2016, 06:01:49 PM »

That's a major oops.  MUTCD has a order of signal colors with balls/arrows and green over yellow is not part of that.
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Re: Unusual Traffic Signals
« Reply #83 on: June 22, 2016, 06:14:20 AM »

You don't purchase cars made on Friday.  You shouldn't purchase signals made on Fridays either apparently.
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US71

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Re: Unusual Traffic Signals
« Reply #84 on: June 22, 2016, 01:43:37 PM »

I received a response from MODOT:

Quote
Thank you for notifying us of the discrepancy in the signal head layout at 291 & Commercial Street in Harrisonville, MO.

This is a new signal set up at the intersection.

Our project manager has notified the contractor and the signal head configuration will be corrected by 06/23/16.

 
We appreciate your assistance with noticing this discrepancy and very much appreciate that you took the time to notify MoDOT.
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Alex

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Re: Unusual Traffic Signals
« Reply #85 on: June 22, 2016, 03:30:48 PM »



Roadman65, flaroads and I rode through this intersection in Jacksonville last week and were quite confused. The signals were first both green and red, then yellow/red simultaneously. Though I know these were malfunctioning, it was reminiscent of these in Wilmington, DE:



and this signal in Baltimore:



and while I'm at it, this long gone assembly from Prichard, Alabama:



One red and one green at the same time.  :hmm:

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Re: Unusual Traffic Signals
« Reply #86 on: June 24, 2016, 04:25:20 PM »

Red ball and green arrow may not be intuitive, but I've never got confused at this intersection of Wilshire/Santa Monica in Beverly Hills, CA:

THe red ball controls the straight movement and the green arrow controls the right turn.

https://www.google.com/maps/@34.067015,-118.4106684,3a,75y,203.89h,87.08t/data=!3m6!1e1!3m4!1s6__1Su6eyWtq3mYM7djRuw!2e0!7i13312!8i6656
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Re: Unusual Traffic Signals
« Reply #87 on: June 24, 2016, 06:46:19 PM »


Note: this is a composite of 2 photos.  The red and green signals were not displayed at the same time.

If they're having that much trouble with clearance under the signals, maybe they should raise the spanwire a bit…

Am I seeing things wrong, or is the span wire connected to a utility pole?  If so, then it's not simply a matter of raising the attachment.  The electric company owns their poles and leases space below the electric lines to other entities by the inch (such as the cable company).  There are also minimum height and clearance issues at work.  For example, if a cable tech has to drive a J-hook into a pole more than just a few inches from the previous attachment, then he has to submit notice to the cable company, who then has to notify the electric company, or else it is an illegal attachment because it was done on another company's property.

A more reasonable approach would be a horizontal stoplight.
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vtk

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Re: Unusual Traffic Signals
« Reply #88 on: June 24, 2016, 09:19:31 PM »


Note: this is a composite of 2 photos.  The red and green signals were not displayed at the same time.

If they're having that much trouble with clearance under the signals, maybe they should raise the spanwire a bit…

Am I seeing things wrong, or is the span wire connected to a utility pole?  If so, then it's not simply a matter of raising the attachment.  The electric company owns their poles and leases space below the electric lines to other entities by the inch (such as the cable company).  There are also minimum height and clearance issues at work.  For example, if a cable tech has to drive a J-hook into a pole more than just a few inches from the previous attachment, then he has to submit notice to the cable company, who then has to notify the electric company, or else it is an illegal attachment because it was done on another company's property.

A more reasonable approach would be a horizontal stoplight.

It didn't stay that way for long.  I'm not sure exactly what they did to resolve the clearance issue, but it was changed to a more conventional display about a week after I posted that.
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CJResotko

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Re: Unusual Traffic Signals
« Reply #89 on: April 16, 2019, 07:46:02 PM »

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