Talk about other non-signal stuff here. Make sure to obey the rules though.
Moderators: freebrickproductions, mlgillson, TommyBNSF, Raco_GS
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freebrickproductions
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by freebrickproductions » Wed Nov 08, 2017 1:54 am
It isn't too common, but some agencies take advantage of blank out signs to do stuff like that, especially the newer LED ones.
cabman701 wrote:
At the next street over, we have another blackout box displaying no left turn because of the train. Notice the doghouse signal is red. Interesting! I wouldn't expect that signal to operate separately from the rest of the lights facing this direction.
https://www.google.com/maps/@39.5142056 ... 6656?hl=en
Technically an MUTCD violation as well, IIRC. If they want to have a permissive left turn, but have the left turn late not allowed to turn when the crossing is active, then the blank-out sign is sufficient. Though if they want to have the signal go red to reinforce this, then they should upgrade that to a flashing yellow arrow.
Louvers allow for programmable visibility at a much lower cost compared to programmable visibility signals like 3Ms, along with standard LEDs being usable with them whereas 3Ms have to use special LEDs with the dimmer circuits bypassed.
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ZachL
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by ZachL » Thu Nov 09, 2017 1:24 am
freebrickproductions wrote: Though if they want to have the signal go red to reinforce this, then they should upgrade that to a flashing yellow arrow.
It actually wasn't until last year that I learned that a flashing yellow arrow signal can keep solid red when it's needed, especially at times when turning on a flashing yellow arrow would be very dangerous.
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cabman701
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by cabman701 » Thu Nov 09, 2017 1:57 pm
ZachL wrote:freebrickproductions wrote: Though if they want to have the signal go red to reinforce this, then they should upgrade that to a flashing yellow arrow.
It actually wasn't until last year that I learned that a flashing yellow arrow signal can keep solid red when it's needed, especially at times when turning on a flashing yellow arrow would be very dangerous.
Yes... I recently discovered that too! There is one on my way to work that will not give a flashing yellow during rush hour, both morning and evening.
And then there is this one for a right turn lane. The ONLY time it displays a flashing yellow is if the crosswalk signals are activated (meaning you need to yield to pedestrians). The rest of the time it only shows red or green.
https://www.google.com/maps/@27.8936296 ... 6656?hl=en
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busman_49
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by busman_49 » Thu Nov 09, 2017 2:13 pm
On the topic of flashing yellow arrows...
This past summer, I saw a handful of 3-section FYA signals in Wisconsin that
weren't bi-modals. Red <-, Yellow <-, and flashing yellow <-. I thought those were interesting and pretty neat.
Example:
https://www.google.com/maps/@43.0372184 ... 312!8i6656
(yes, it's yellow)
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cabman701
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by cabman701 » Thu Nov 09, 2017 4:12 pm
busman_49 wrote:On the topic of flashing yellow arrows...
This past summer, I saw a handful of 3-section FYA signals in Wisconsin that
weren't bi-modals. Red <-, Yellow <-, and flashing yellow <-. I thought those were interesting and pretty neat.
Example:
https://www.google.com/maps/@43.0372184 ... 312!8i6656
(yes, it's yellow)
That's interesting... especially since the signal right behind it (for the opposite lanes) is a 4 section one. When these first came out, I thought it was odd to have 2 yellow lights, but I guess it helps people distinguish when the light is getting ready to change to red.
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busman_49
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by busman_49 » Thu Nov 09, 2017 4:41 pm
cabman701 wrote:busman_49 wrote:On the topic of flashing yellow arrows...
This past summer, I saw a handful of 3-section FYA signals in Wisconsin that
weren't bi-modals. Red <-, Yellow <-, and flashing yellow <-. I thought those were interesting and pretty neat.
Example:
https://www.google.com/maps/@43.0372184 ... 312!8i6656
(yes, it's yellow)
That's interesting... especially since the signal right behind it (for the opposite lanes) is a 4 section one. When these first came out, I thought it was odd to have 2 yellow lights, but I guess it helps people distinguish when the light is getting ready to change to red.
I think I heard/read somewhere that the double yellow indication has something to do with the way the controllers are made/programmed
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freebrickproductions
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by freebrickproductions » Thu Nov 09, 2017 5:08 pm
busman_49 wrote:cabman701 wrote:busman_49 wrote:On the topic of flashing yellow arrows...
This past summer, I saw a handful of 3-section FYA signals in Wisconsin that
weren't bi-modals. Red <-, Yellow <-, and flashing yellow <-. I thought those were interesting and pretty neat.
Example:
https://www.google.com/maps/@43.0372184 ... 312!8i6656
(yes, it's yellow)
That's interesting... especially since the signal right behind it (for the opposite lanes) is a 4 section one. When these first came out, I thought it was odd to have 2 yellow lights, but I guess it helps people distinguish when the light is getting ready to change to red.
I think I heard/read somewhere that the double yellow indication has something to do with the way the controllers are made/programmed
It also reinforces when the steady yellow light comes on by having it change position. Huntsville also has a number of three section FYA signals in the downtown, but none have been installed anywhere else in the city.
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ZachL
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by ZachL » Sun Oct 20, 2019 4:47 pm
Low or soft shoulder pretty much means don't drive there and only pull over in extreme emergency. Low means that it's lower than the road. Soft means it's unpaved.