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Author Topic: Arizona  (Read 33806 times)

74/171FAN

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Re: Arizona
« Reply #125 on: March 19, 2022, 09:09:57 PM »

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Pink Jazz

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Re: Arizona
« Reply #126 on: April 01, 2022, 01:01:14 PM »

I noticed ADOT is starting to make a move towards straight mast arms for new traffic signal installations. I wonder what the reason for the change is.

The City of Phoenix has used straight mast arms for years.
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ztonyg

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Re: Arizona
« Reply #127 on: April 01, 2022, 10:54:03 PM »

I noticed ADOT is starting to make a move towards straight mast arms for new traffic signal installations. I wonder what the reason for the change is.

The City of Phoenix has used straight mast arms for years.

Where have you seen the straight mast arms?

The newer ADOT signals along I-17 (Happy Valley Rd and Pinnacle Peak Rd) use the typical ADOT mast arms.
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Pink Jazz

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Re: Arizona
« Reply #128 on: April 02, 2022, 12:17:17 AM »

I noticed ADOT is starting to make a move towards straight mast arms for new traffic signal installations. I wonder what the reason for the change is.

The City of Phoenix has used straight mast arms for years.

Where have you seen the straight mast arms?

The newer ADOT signals along I-17 (Happy Valley Rd and Pinnacle Peak Rd) use the typical ADOT mast arms.

There are some at the new Loop 202/Lindsay Road interchange in Gilbert, as well as along SR 24.
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ztonyg

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Re: Arizona
« Reply #129 on: April 03, 2022, 11:54:46 PM »

I noticed ADOT is starting to make a move towards straight mast arms for new traffic signal installations. I wonder what the reason for the change is.

The City of Phoenix has used straight mast arms for years.

Where have you seen the straight mast arms?

The newer ADOT signals along I-17 (Happy Valley Rd and Pinnacle Peak Rd) use the typical ADOT mast arms.

There are some at the new Loop 202/Lindsay Road interchange in Gilbert, as well as along SR 24.

Thank you. I've seen some photos of those and they look like the generic straight mast arms found in many other parts of the country. The Phoenix style looks "different" to me.

I'd imagine the straight mast arms are cheaper than the slanted mast arms which really only seem common in Arizona and California.

I think the reason ADOT switched is probably cost. I believe it's the same reason ADOT has switched to installing DMSs on "T" poles on the right hand side of freeways instead of mounting them overhead on monotube gantries.
« Last Edit: April 04, 2022, 12:07:43 AM by ztonyg »
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Pink Jazz

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Re: Arizona
« Reply #130 on: April 04, 2022, 05:24:54 PM »


I think the reason ADOT switched is probably cost. I believe it's the same reason ADOT has switched to installing DMSs on "T" poles on the right hand side of freeways instead of mounting them overhead on monotube gantries.


I also noticed many of these new DMS on "T" poles are the front access type instead of walk-in.
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Pink Jazz

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Re: Arizona
« Reply #131 on: May 02, 2022, 08:15:33 PM »

While ADOT has not yet put out an RFP for its next DMS vendor, ADOT has is preparing to award Daktronics a contract to refurbish its older Daktronics DMS that were installed 2007-2014. The older Daktronics DMS are LED character matrix. I wonder if it is possible to convert these to color full matrix using the same DMS housing. This is a sole source contract, since according to ADOT many of the components are proprietary to Daktronics.
« Last Edit: May 02, 2022, 08:27:32 PM by Pink Jazz »
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ztonyg

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Re: Arizona
« Reply #132 on: May 05, 2022, 11:22:16 PM »

While ADOT has not yet put out an RFP for its next DMS vendor, ADOT has is preparing to award Daktronics a contract to refurbish its older Daktronics DMS that were installed 2007-2014. The older Daktronics DMS are LED character matrix. I wonder if it is possible to convert these to color full matrix using the same DMS housing. This is a sole source contract, since according to ADOT many of the components are proprietary to Daktronics.

I'm surprised they're refurbishing them. There used to be a number of them along the E/W segment of the Loop 101 Pima Freeway and N/S segment of Loop 101 Price Freeway S of US 60 and they were all ripped out and replaced with the color full matrix DMSs (most on "T" poles) during the widening of those 2 segments of highway.

Also I would guess that the first "straight" mast arm ADOT installed in metro Phoenix might have been one at US 60 (Grand Ave) and Bethany Home Rd. It's an "extra" set of signals for E/B drivers on Bethany Home Rd and I stumbled upon it the other day. Based upon Google street view it was installed between February and December of 2020.

https://goo.gl/maps/NzME4WQ5qaj4pABi6



 
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ethanhopkin14

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Re: Arizona
« Reply #133 on: May 09, 2022, 03:11:38 PM »

Are there any surviving colored Loop state shields in the Phoenix area?  Also, when was the last time to anyone's knowledge they were still a few left?  I seem to think I remember some in 2001. 
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Max Rockatansky

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Re: Arizona
« Reply #134 on: May 09, 2022, 03:22:29 PM »

Are there any surviving colored Loop state shields in the Phoenix area?  Also, when was the last time to anyone's knowledge they were still a few left?  I seem to think I remember some in 2001.

Plenty of blue 101s in Scottsdale the last time visited, on freeway not so much.
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KeithE4Phx

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Re: Arizona
« Reply #135 on: May 09, 2022, 09:22:45 PM »

Are there any surviving colored Loop state shields in the Phoenix area?  Also, when was the last time to anyone's knowledge they were still a few left?  I seem to think I remember some in 2001.

Plenty of blue 101s in Scottsdale the last time visited, on freeway not so much.

The brown Loop 202 signs have all been replaced.  At least I don't recall seeing any in several years.  I believe there are still one or two black Loop 303 signs still around, at least as of last year.  I try to avoid the 101 like the plague, so I have no idea if there are any blue signs left.  :)
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Zonie

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Re: Arizona
« Reply #136 on: May 09, 2022, 10:10:57 PM »

I don't think there are any blue 101 signs on the mainline, but there are plenty on the approaches.
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Pink Jazz

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Re: Arizona
« Reply #137 on: May 10, 2022, 11:51:02 AM »


The brown Loop 202 signs have all been replaced.  At least I don't recall seeing any in several years.  I believe there are still one or two black Loop 303 signs still around, at least as of last year.  I try to avoid the 101 like the plague, so I have no idea if there are any blue signs left.  :)

I remember the last (badly faded) survivors of the brown Loop 202 shields were at Country Club (SR 87) and the Loop 202 Red Mountain in Mesa. Not sure if they are still there.
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KeithE4Phx

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Re: Arizona
« Reply #138 on: May 10, 2022, 04:07:21 PM »


The brown Loop 202 signs have all been replaced.  At least I don't recall seeing any in several years.  I believe there are still one or two black Loop 303 signs still around, at least as of last year.  I try to avoid the 101 like the plague, so I have no idea if there are any blue signs left.  :)

I remember the last (badly faded) survivors of the brown Loop 202 shields were at Country Club (SR 87) and the Loop 202 Red Mountain in Mesa. Not sure if they are still there.

I don't believe they are, either on the freeway itself or on Country Club.

In any case, you'd think that ADOT would have learned its lesson from the 1950s & '60s, when all state and US highway signs were color coded, depending on the direction.  I remember seeing a lot of them fading by the time that was discontinued in the mid '60s.

https://www.arizonaroads.com/maps/1961-4.jpg
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Max Rockatansky

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Re: Arizona
« Reply #139 on: May 10, 2022, 04:12:07 PM »


The brown Loop 202 signs have all been replaced.  At least I don't recall seeing any in several years.  I believe there are still one or two black Loop 303 signs still around, at least as of last year.  I try to avoid the 101 like the plague, so I have no idea if there are any blue signs left.  :)

I remember the last (badly faded) survivors of the brown Loop 202 shields were at Country Club (SR 87) and the Loop 202 Red Mountain in Mesa. Not sure if they are still there.

I don't believe they are, either on the freeway itself or on Country Club.

In any case, you'd think that ADOT would have learned its lesson from the 1950s & '60s, when all state and US highway signs were color coded, depending on the direction.  I remember seeing a lot of them fading by the time that was discontinued in the mid '60s.

https://www.arizonaroads.com/maps/1961-4.jpg

And yet the entire country has Interstate shields which are infamous for red color fade.  Certain colors like blue and green hold up really well in the sun, it really just depends on what is used.
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