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75pu
Regarding the sentence
Unless I am reading the sentence wrong, traffic lights mounted horizontally over the road as well as vertically on the support post at the same intersection can be found everywhere, not just the Yukon territory! In fact, some of the vertical lights are actually mounted on top of the vertical post to be seen at a distance, especially if the intersection is at the bottom of a hill. -- Goldrushcavi 19:10, 10 June 2006 (UTC)
This article not only needs more sections, but the mass of information that I have classes as "examples" needs organised in some fashion. It's currently just spewed onto the page.
zoney ♣ talk 21:10, 22 June 2006 (UTC)
I think this page is informative, but the provision of photos of the unusual traffic lights alongside the text would be even better. LR4087 05:35, 28 August 2006 (UTC)
The City of New York may still have some older two-color (red/green only, no yellow) traffic signals in service. I remember seeing this on the web site http://www.forgotten-ny.com however my company firewall won't seem to let me in there to verify if this is still true. Perhaps someone else can check it out and update this article accordingly? Fjbfour 12:16, 8 December 2006 (UTC)
In parts of Canada (the Maritime Provinces, Quebec, Ontario and Alberta), a flashing green light has a special meaning. It is only shown in one direction, with the other three directions in a 4-way intersection having a red light. So, then, what does it mean in British Columbia? Quick Google searches indicate it means there is an unoccupied pedestrian crossing. Confirm/deny? Source and add please. SchmuckyTheCat 17:04, 8 January 2007 (UTC)
This whole article probably needs to be scrapped or merged into "Traffic lights", but I put OR on it for starters for the following reasons:
1. There is no objective way to decide what an "unusual" use of a traffic light is
2. If something is an unusual use, it might very well not be labeled as such in the source, meaning that it still can't be objectively included
3. There are lots of statements (see "Flashing yellow arrow" for example) that indicate that statistics were interpreted or other primary sources were used to generate new information... hence, original research -- 24.131.82.38 06:49, 24 October 2007 (UTC)
Taken out and copied here:
I think there were on a few larger streets and highways, but this is not enough for mentioning. We need more verification on this. Unfortunately, I cannot remember the right name for that system. I haven't seen such electronic signs for some decades anymore. I assume the reason for that was to save gas, because exhausts are less if the car is on the move rather than waiting at a traffic light (where most motorists do not shut off their engines). -- Scriberius ( talk) 09:34, 6 January 2008 (UTC) from Germany
This was called a "signal speed funnel." It was created in Germany in the 1960s for use on highways, so the motorist traveling at the indicated speed would find the signal green. They gave up on it, because nobody slowed down to get the green light. Popular Science had an article on it in the 1960s. — Preceding unsigned comment added by 76.251.84.250 ( talk) 23:15, 29 August 2011 (UTC)
I was looking through the proposed Amendments for the New 2009 MUTCD, found here, and (using the "clean text" version) starting on Page 289 it looks like there will be FOUR different displays allowed in the USA for permissive left and right turns (and this is my source for the following):
For the change from flashing red or yellow arrow to steady yellow arrow, the steady yellow arrow comes on at the same time as the oncoming traffic yellow light, eliminating the yellow trap. Of the four allowed signal displays, only the first kind listed above is susceptible to the yellow trap (assuming they are correctly installed).
Given that all four of these kinds of signals are in the MUTCD, I don't know if any of them can be considered "unusual" in the United States. Then again, if we want to have a worldwide view of the subject of unusual uses of traffic lights, these are signal displays that may or may not be used in places outside the United States, and may be worth including. -- Sleckronmich ( talk) 04:33, 12 January 2008 (UTC)
Its a light that regulated traffic, so its a traffic-light. 89.240.206.60 ( talk) 01:35, 8 March 2009 (UTC)
Many sections in the article only discuss United States, sometimes Canada and Australia. Much detail is given to different states of the US or provinces of Canada, but none (or next to none) attention given to Europe or other parts of the world. In particular, this happens a lot in "Unusual traffic light phases" and "Warnings of traffic light ahead". -- Akral ( talk) 09:31, 20 May 2012 (UTC)
sorry! (mea culpa) I meant to put a comment on my change but brain hit Save. But, I counted the article and it had many more yellows than ambers, and I checked the MUTCD and it had yellow, and I googled .ca and .uk and .eu for "traffic signal light" and yellow vs amber, and yellow was always clearly more prevalent. So I made this article all yellow. 71.190.65.235 ( talk) 13:44, 2 July 2012 (UTC)
It was my understanding that the difference between yellow and amber glass related to the particular chemistry of the glass used. In traffic lights, the colour is "amber" from a glass-making perspective. Unfortunately I can not find a source for this. — Preceding unsigned comment added by 84.75.44.171 ( talk) 16:24, 18 April 2013 (UTC)
There has been an edit skirmish (not a quite an edit war yet) between editors Epicgenius and Kwamikagami. They have moved this article from "Traffic-light..." to "Traffic light..." and back twice.
I don't see anything in Hyphen that supports the hyphenated version. In my two decades as a traffic engineer, I've never seen it hyphenated. Still, it could be WP:ENGVAR thing, so I figured the polite thing is to discuss it before it gets too silly.
So, dear editors, please explain why you think it should be hyphenated or not.-- Triskele Jim 17:00, 11 June 2013 (UTC)
The following sentence is in the Flashing yellow arrow section of this article, but it sounds completely wrong to me. I'm not a traffic engineer, but maybe one is paying attention and can either fix the problem or set me straight.
To the driver turning left, the flashing yellow arrow means exactly the same as the steady green arrow.
A steady green arrow indicates that the oncoming traffic is stopped, and the left turn is protected. A flashing yellow arrow means that the oncoming traffic is, well, oncoming, and the left turn is allowed, but not protected. Pretty big difference.
Perhaps the last word should be "ball," not arrow, and the sentence could say "... exactly the same as the steady green ball." Stevekass ( talk) 22:43, 4 October 2013 (UTC)
I am a traffic engineer and work for the Oregon Department of Transportation. There are multiple problems with the Flashing Yellow Arrow(FYA) section. First there is only mention of four types of FYA which excludes the original FYA developed by Jackson County Oregon which is a single lamp has a dual indication yellow/flashing yellow function. It doesn't discuss Red Transition, Red Extension, Gap dependent FYA, detector switching, how the phase pairs work together and the origin of FYA. All of these topics are fundamental to understanding how FYA works. — Preceding unsigned comment added by Fitzgerw ( talk • contribs) 13:13, 20 August 2014 (UTC)
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Recently, one of the intersections I drive though during my normal commute has what appears to be a new type of signal. It starts out as off. However, under certain circumstances during normal cycles, it will turn on, displaying the appearance of a "No Right Turn" sign using LED lighting, then turn back off when no longer needed. Is this a type of signal that hasn't been mentioned? If so, what does it really mean? Should this be included in this article? Rapierman ( talk) 20:04, 7 January 2020 (UTC)
It is not clear for me why there are two articles?
Which article should deal with concepts such as for insatnce safety, crashes, fatalities, cost, wireless and so on? — Preceding unsigned comment added by 88.136.216.31 ( talk) 15:02, 10 October 2020 (UTC)
![]() | This article is rated C-class on Wikipedia's
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75pu
Regarding the sentence
Unless I am reading the sentence wrong, traffic lights mounted horizontally over the road as well as vertically on the support post at the same intersection can be found everywhere, not just the Yukon territory! In fact, some of the vertical lights are actually mounted on top of the vertical post to be seen at a distance, especially if the intersection is at the bottom of a hill. -- Goldrushcavi 19:10, 10 June 2006 (UTC)
This article not only needs more sections, but the mass of information that I have classes as "examples" needs organised in some fashion. It's currently just spewed onto the page.
zoney ♣ talk 21:10, 22 June 2006 (UTC)
I think this page is informative, but the provision of photos of the unusual traffic lights alongside the text would be even better. LR4087 05:35, 28 August 2006 (UTC)
The City of New York may still have some older two-color (red/green only, no yellow) traffic signals in service. I remember seeing this on the web site http://www.forgotten-ny.com however my company firewall won't seem to let me in there to verify if this is still true. Perhaps someone else can check it out and update this article accordingly? Fjbfour 12:16, 8 December 2006 (UTC)
In parts of Canada (the Maritime Provinces, Quebec, Ontario and Alberta), a flashing green light has a special meaning. It is only shown in one direction, with the other three directions in a 4-way intersection having a red light. So, then, what does it mean in British Columbia? Quick Google searches indicate it means there is an unoccupied pedestrian crossing. Confirm/deny? Source and add please. SchmuckyTheCat 17:04, 8 January 2007 (UTC)
This whole article probably needs to be scrapped or merged into "Traffic lights", but I put OR on it for starters for the following reasons:
1. There is no objective way to decide what an "unusual" use of a traffic light is
2. If something is an unusual use, it might very well not be labeled as such in the source, meaning that it still can't be objectively included
3. There are lots of statements (see "Flashing yellow arrow" for example) that indicate that statistics were interpreted or other primary sources were used to generate new information... hence, original research -- 24.131.82.38 06:49, 24 October 2007 (UTC)
Taken out and copied here:
I think there were on a few larger streets and highways, but this is not enough for mentioning. We need more verification on this. Unfortunately, I cannot remember the right name for that system. I haven't seen such electronic signs for some decades anymore. I assume the reason for that was to save gas, because exhausts are less if the car is on the move rather than waiting at a traffic light (where most motorists do not shut off their engines). -- Scriberius ( talk) 09:34, 6 January 2008 (UTC) from Germany
This was called a "signal speed funnel." It was created in Germany in the 1960s for use on highways, so the motorist traveling at the indicated speed would find the signal green. They gave up on it, because nobody slowed down to get the green light. Popular Science had an article on it in the 1960s. — Preceding unsigned comment added by 76.251.84.250 ( talk) 23:15, 29 August 2011 (UTC)
I was looking through the proposed Amendments for the New 2009 MUTCD, found here, and (using the "clean text" version) starting on Page 289 it looks like there will be FOUR different displays allowed in the USA for permissive left and right turns (and this is my source for the following):
For the change from flashing red or yellow arrow to steady yellow arrow, the steady yellow arrow comes on at the same time as the oncoming traffic yellow light, eliminating the yellow trap. Of the four allowed signal displays, only the first kind listed above is susceptible to the yellow trap (assuming they are correctly installed).
Given that all four of these kinds of signals are in the MUTCD, I don't know if any of them can be considered "unusual" in the United States. Then again, if we want to have a worldwide view of the subject of unusual uses of traffic lights, these are signal displays that may or may not be used in places outside the United States, and may be worth including. -- Sleckronmich ( talk) 04:33, 12 January 2008 (UTC)
Its a light that regulated traffic, so its a traffic-light. 89.240.206.60 ( talk) 01:35, 8 March 2009 (UTC)
Many sections in the article only discuss United States, sometimes Canada and Australia. Much detail is given to different states of the US or provinces of Canada, but none (or next to none) attention given to Europe or other parts of the world. In particular, this happens a lot in "Unusual traffic light phases" and "Warnings of traffic light ahead". -- Akral ( talk) 09:31, 20 May 2012 (UTC)
sorry! (mea culpa) I meant to put a comment on my change but brain hit Save. But, I counted the article and it had many more yellows than ambers, and I checked the MUTCD and it had yellow, and I googled .ca and .uk and .eu for "traffic signal light" and yellow vs amber, and yellow was always clearly more prevalent. So I made this article all yellow. 71.190.65.235 ( talk) 13:44, 2 July 2012 (UTC)
It was my understanding that the difference between yellow and amber glass related to the particular chemistry of the glass used. In traffic lights, the colour is "amber" from a glass-making perspective. Unfortunately I can not find a source for this. — Preceding unsigned comment added by 84.75.44.171 ( talk) 16:24, 18 April 2013 (UTC)
There has been an edit skirmish (not a quite an edit war yet) between editors Epicgenius and Kwamikagami. They have moved this article from "Traffic-light..." to "Traffic light..." and back twice.
I don't see anything in Hyphen that supports the hyphenated version. In my two decades as a traffic engineer, I've never seen it hyphenated. Still, it could be WP:ENGVAR thing, so I figured the polite thing is to discuss it before it gets too silly.
So, dear editors, please explain why you think it should be hyphenated or not.-- Triskele Jim 17:00, 11 June 2013 (UTC)
The following sentence is in the Flashing yellow arrow section of this article, but it sounds completely wrong to me. I'm not a traffic engineer, but maybe one is paying attention and can either fix the problem or set me straight.
To the driver turning left, the flashing yellow arrow means exactly the same as the steady green arrow.
A steady green arrow indicates that the oncoming traffic is stopped, and the left turn is protected. A flashing yellow arrow means that the oncoming traffic is, well, oncoming, and the left turn is allowed, but not protected. Pretty big difference.
Perhaps the last word should be "ball," not arrow, and the sentence could say "... exactly the same as the steady green ball." Stevekass ( talk) 22:43, 4 October 2013 (UTC)
I am a traffic engineer and work for the Oregon Department of Transportation. There are multiple problems with the Flashing Yellow Arrow(FYA) section. First there is only mention of four types of FYA which excludes the original FYA developed by Jackson County Oregon which is a single lamp has a dual indication yellow/flashing yellow function. It doesn't discuss Red Transition, Red Extension, Gap dependent FYA, detector switching, how the phase pairs work together and the origin of FYA. All of these topics are fundamental to understanding how FYA works. — Preceding unsigned comment added by Fitzgerw ( talk • contribs) 13:13, 20 August 2014 (UTC)
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Recently, one of the intersections I drive though during my normal commute has what appears to be a new type of signal. It starts out as off. However, under certain circumstances during normal cycles, it will turn on, displaying the appearance of a "No Right Turn" sign using LED lighting, then turn back off when no longer needed. Is this a type of signal that hasn't been mentioned? If so, what does it really mean? Should this be included in this article? Rapierman ( talk) 20:04, 7 January 2020 (UTC)
It is not clear for me why there are two articles?
Which article should deal with concepts such as for insatnce safety, crashes, fatalities, cost, wireless and so on? — Preceding unsigned comment added by 88.136.216.31 ( talk) 15:02, 10 October 2020 (UTC)