I saw an accident a few years ago in which an older gentleman made a left turn into oncoming traffic. My theory is that he saw the on-portion of a flashing yellow and thought it was a normal yellow, thinking he had time to complete a turn.
I will say they made this set up a lot easier with newer TS2 and ATC signal controllers. In my case trying to make the logical "ped clearance" (in conjunction with an overlap) function to work in my older TS1 field terminations load panel has been a bear and one I have never solved (it's not even an option in my Econolite ASC 2100S controller). Not one video out there demonstrates how that is done. After all FYA is supposed to be backward compatible LOL. Hope all has been well for you!
@@trafficsignalstraining7673 Doghouse signals work better for shared forward/turn lanes along with right turn signals, so in those cases you can't really have a yellow flashing arrow (except for right turn)
I noticed new 3 section fya signals is getting popular in my metro area but completely opposite in Denver n Colorado Springs metro areas. What is different between 4 section fya and 3 section fya signal?
@@AmtrakProductions pueblo metro area is very first to have 4 section fya signal and cdot installed first set in 2005. We have only set of red flashing yellow signals in the state.
Typically a four section head has two yellow arrows one for the yellow clearance solid movement and one for the flashing movement. A three section head configuration uses what's called a bimodal yellow/green arrow. It's an indication that has LEDs for both a green arrow and a yellow arrow and it allows for you to operate both indications off of the one section. It's quite common to see nowadays because engineers are doing what they can to adjust the wind load resistance on the mast arm.
What mode fya do you use? Do you monitor the red fail on the fya channel since it is dark 50% of the time? I see the benefit to traffic, but the limitations of both the NEMA and 170 cabinets make them too problematic for me to love them.
I just started a week ago at a company that does traffic signals I’ve already learned a lot from your videos but want to understand how all of it works so once I start learning programming it will be easier understanding how everything works rather than just putting in stuff without fully understanding it if that makes sense
Though I am not in the industry, I actually have some knowledge on how detectors work. As a signal collector for more than 20 years, you pick up a thing or two from the pros (I've talked to real traffic engineers and techs as well learned on my own traffic signal gear) Traditional vehicle detectors work on inductance (literally called inductance loop detection). Those cuts in the roads (covered in a sealant) you see around an intersection contain three 14 gauge wires twisted and then placed in the cut asphalt (typically 6' x 6' and some are even longer runs depending on their function) The wires are routed to a pull box that contains a termination point. That is routed to the cabinet underground in conduit. These leads are then connected to a series of terminal strips. The loops of field wire are connected on the other side to the detectors cables which then go to the detectors. When these wires are energized they create a magnetic field and when a large vehicle crosses that field it breaks the connection establishing a "call" to the controller via the detectors inside the cabinet (either NEMA style or CALTRANS variants). The old full service gas stations made their bell ring using a hose across the driveway that went to a mechanical device that would trigger the bell when a car went over the hose. I don't know how common RADAR detection is used in traffic signals, but cameras (quite common) use CCTV technology to capture traffic in the various lanes. Lots of expensive gear lives in the cabinet which I know little about. This video series is from 14 years ago, it goes into great detail how the traditional inductance loops are installed. ruclips.net/video/KvzJn09DqaM/видео.html Also here is a REALLY cool demo from The Traffic Signals Training ruclips.net/video/G-_oFyT9vpQ/видео.html
I like the old doghouse configurations and we still have a few left in our area but they are being replaced by the newer "flashing yellow" configuration. Won't be long before the doghouse thing has gone the way of the dodo.
Going to the pound LOL. Doghouse configurations are not as prevalent in my state (I've seen one near where I used to live). The inline 5 signal (R,Y,G,YA,GA) is what is common (though the FYA is replacing them).
Since there are so many issues to be trouble shot this would be quite a long video perhaps a series of videos but I can go over a basic troubleshooting video.
Since there are so many issues to be trouble shot this would be quite a long video perhaps a series of videos but I can go over a basic troubleshooting video.
FYAs are great. you have the ability to avoid a yellow trap and be very creative with left-turn sequencing.
I saw an accident a few years ago in which an older gentleman made a left turn into oncoming traffic. My theory is that he saw the on-portion of a flashing yellow and thought it was a normal yellow, thinking he had time to complete a turn.
I will say they made this set up a lot easier with newer TS2 and ATC signal controllers. In my case trying to make the logical "ped clearance" (in conjunction with an overlap) function to work in my older TS1 field terminations load panel has been a bear and one I have never solved (it's not even an option in my Econolite ASC 2100S controller). Not one video out there demonstrates how that is done. After all FYA is supposed to be backward compatible LOL. Hope all has been well for you!
We have switched over to these at all of our intersections. I do believe it helps with traffic flow.
Its funny how you spoke as if new dog house signals are going extinct but here in the Tampa Bay area, they still put new ones up.
Interesting! Most engineers are moving away from them because of wind load resistance.
@@trafficsignalstraining7673 Doghouse signals work better for shared forward/turn lanes along with right turn signals, so in those cases you can't really have a yellow flashing arrow (except for right turn)
Flashing yellow arrows are great ! We like to use them for crosswalk right turns as well
We haven't begun to implement those quite yet but I have seen them.
I noticed new 3 section fya signals is getting popular in my metro area but completely opposite in Denver n Colorado Springs metro areas. What is different between 4 section fya and 3 section fya signal?
Lack of a protected green arrow typically
@@AmtrakProductions pueblo metro area is very first to have 4 section fya signal and cdot installed first set in 2005. We have only set of red flashing yellow signals in the state.
Typically a four section head has two yellow arrows one for the yellow clearance solid movement and one for the flashing movement.
A three section head configuration uses what's called a bimodal yellow/green arrow. It's an indication that has LEDs for both a green arrow and a yellow arrow and it allows for you to operate both indications off of the one section.
It's quite common to see nowadays because engineers are doing what they can to adjust the wind load resistance on the mast arm.
@@trafficsignalstraining7673 our 3 section not have bi module for 3rd lower section. It have flash yellow arrow module and that it.
@@jbb3design I'm not sure if Denver is just trying something novel, but that wouldn't meet MUTCD standards here in the USA.
What mode fya do you use? Do you monitor the red fail on the fya channel since it is dark 50% of the time?
I see the benefit to traffic, but the limitations of both the NEMA and 170 cabinets make them too problematic for me to love them.
We use mode b, our overlaps are on channels 13 through 16. We do not monitor the flashing yellow phase.
Love it! Thanks!
Can you go over a blueprint, also how detective devices work such as radar and camera and how they would be wired into the cabinet and programmed
I just started a week ago at a company that does traffic signals I’ve already learned a lot from your videos but want to understand how all of it works so once I start learning programming it will be easier understanding how everything works rather than just putting in stuff without fully understanding it if that makes sense
Though I am not in the industry, I actually have some knowledge on how detectors work. As a signal collector for more than 20 years, you pick up a thing or two from the pros (I've talked to real traffic engineers and techs as well learned on my own traffic signal gear)
Traditional vehicle detectors work on inductance (literally called inductance loop detection). Those cuts in the roads (covered in a sealant) you see around an intersection contain three 14 gauge wires twisted and then placed in the cut asphalt (typically 6' x 6' and some are even longer runs depending on their function) The wires are routed to a pull box that contains a termination point. That is routed to the cabinet underground in conduit. These leads are then connected to a series of terminal strips. The loops of field wire are connected on the other side to the detectors cables which then go to the detectors. When these wires are energized they create a magnetic field and when a large vehicle crosses that field it breaks the connection establishing a "call" to the controller via the detectors inside the cabinet (either NEMA style or CALTRANS variants). The old full service gas stations made their bell ring using a hose across the driveway that went to a mechanical device that would trigger the bell when a car went over the hose.
I don't know how common RADAR detection is used in traffic signals, but cameras (quite common) use CCTV technology to capture traffic in the various lanes. Lots of expensive gear lives in the cabinet which I know little about.
This video series is from 14 years ago, it goes into great detail how the traditional inductance loops are installed. ruclips.net/video/KvzJn09DqaM/видео.html
Also here is a REALLY cool demo from The Traffic Signals Training ruclips.net/video/G-_oFyT9vpQ/видео.html
I like the old doghouse configurations and we still have a few left in our area but they are being replaced by the newer "flashing yellow" configuration. Won't be long before the doghouse thing has gone the way of the dodo.
Going to the pound LOL. Doghouse configurations are not as prevalent in my state (I've seen one near where I used to live). The inline 5 signal (R,Y,G,YA,GA) is what is common (though the FYA is replacing them).
Can you do a video oN LEAD-LEAD, LEAD-LAG & LAG-LAG?
I plan on one soon!
How would you feel about doing videos over trouble shooting issues? I'm currently in training and you help out a lot
Since there are so many issues to be trouble shot this would be quite a long video perhaps a series of videos but I can go over a basic troubleshooting video.
Since there are so many issues to be trouble shot this would be quite a long video perhaps a series of videos but I can go over a basic troubleshooting video.
@@trafficsignalstraining7673 I appreciate anything you can do man
It's actually an orange hand. Ha ha ha.