Here in Vegas we also use overlaps for left turn flashing yellow arrows. On those we also hook up resistors to the unused greens on the load switches to prevent the conflict monitor from throwing the system into flash mode due to it thinking there's an open green circuit.
Hello from CT, very interesting video on phasing. Speaking of phasing, I recently told you of a signal which we installed that completely eliminated Phase 1 from 1500 to 1830. Well, as it turns out the braintrusts at CTDOT have revised the program to allow 35" of green time during max 2 (0630 - 0900) and 10" of green time during max 1 (all other times) thus allowing phase 1 to operate all day until nighttime flash at 2200. The Engineer which I had shown your reply to had actually taken your advice!! Our controllers here in CT use the phasing as illustrated in this video, however it is standard to insert Phase 9 in between rings if the intersection has an exclusive pedestrian phase. Until next time STAY SAFE!!
Awesome video. I always wondered what the ring and barrier thing was when I seen an engineer draw it out at an intersection. Keep it coming man, very informative. Will also check mutcd! Thanks
Can you please explain the Veh extension, Max Gap and Min gap in a 233 timing sheet. I would really appreciate a video regarding those three for a 170 controller. Thank you!
I may have missed it. I didn't hear you mention phases in the same ring cannot run together. Only heard the part about the barrier. Also phases are 1 thru 8, overlaps are not phases, they are overlaps A, B,C, And D that can be assigned to run with any phase as there is no conflict, for additional movement, such as right turns arrows or to clear intersections.
If there is a dispute between who had red v. green light, what would a police officer need to look for--and find--in order to hold someone liable for the accident (i.e., running a red light v. green)? Especially if there was no witnesses to the accident or video footage.
Usually a traffic engineering firm will come and perform a SCAT study (Signal Coordination and Timing) on a corridor of traffic signals. Their findings are then implemented into the controller.
If there is no detection on the side street and there is a protected left turn at the end of the max cycle length for the main Street, the opposing through movement would terminate allowing for the left turn to serve green. After that movement has been served it will then terminate and then cycle back to the opposing through Street movement.
An interval is a term used to describe a set amount of time a phase is served within a cycle... A split is a term describing an interval assigned to a phase during coordination... I haven't made a video on coordination yet, but I should!
Someday maybe but I am far too busy to get that going. I will do my best to try and offer as much information as I can for free on RUclips. Someday maybe I might be able to do an online class.
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Great work! Need more videos like this! Highly recommend creating more content like this go in great detail.
Absolutely phenomenal. I’m an urban designer and this helps clarity.
Here in Vegas we also use overlaps for left turn flashing yellow arrows. On those we also hook up resistors to the unused greens on the load switches to prevent the conflict monitor from throwing the system into flash mode due to it thinking there's an open green circuit.
Booring and not informative
Awesome video , sir, I had 156 intersection projects of Dot projects, 25 years back.
Thank you. This is a great short explanation.
Hello from CT, very interesting video on phasing. Speaking of phasing, I recently told you of a signal which we installed that completely eliminated Phase 1 from 1500 to 1830. Well, as it turns out the braintrusts at CTDOT have revised the program to allow 35" of green time during max 2 (0630 - 0900) and 10" of green time during max 1 (all other times) thus allowing phase 1 to operate all day until nighttime flash at 2200. The Engineer which I had shown your reply to had actually taken your advice!!
Our controllers here in CT use the phasing as illustrated in this video, however it is standard to insert Phase 9 in between rings if the intersection has an exclusive pedestrian phase. Until next time STAY SAFE!!
Cool! Yeah, a little bit of time on a max2 was the way to go. Yeah, exclusive peds are fun also.
What district are you from
@@Iaiashgamer I, Elaine does not work for any district. My husband works for a contractor and uses my site from time to time.
Awesome video. I always wondered what the ring and barrier thing was when I seen an engineer draw it out at an intersection. Keep it coming man, very informative. Will also check mutcd!
Thanks
Sweet! Yeah, it took me some time to grasp it years ago, so I do my best to explain it as easy as possible.
This was brilliant, it really was helpful. Thanks a heap!!
You're awesome dude!
great video thank you!
Can you please explain the Veh extension, Max Gap and Min gap in a 233 timing sheet. I would really appreciate a video regarding those three for a 170 controller. Thank you!
I may have missed it. I didn't hear you mention phases in the same ring cannot run together. Only heard the part about the barrier. Also phases are 1 thru 8, overlaps are not phases, they are overlaps A, B,C, And D that can be assigned to run with any phase as there is no conflict, for additional movement, such as right turns arrows or to clear intersections.
Great great great video
This is really helpful. Could you talk more about lead / lag and its optimization?
Fantastic video. Thanks for posting this series
No problem!
Right on Dude more talks please!
Thank you SO much!
If there is a dispute between who had red v. green light, what would a police officer need to look for--and find--in order to hold someone liable for the accident (i.e., running a red light v. green)? Especially if there was no witnesses to the accident or video footage.
I'm curious who decides how long each light signal lasts for ?
Usually a traffic engineering firm will come and perform a SCAT study (Signal Coordination and Timing) on a corridor of traffic signals. Their findings are then implemented into the controller.
@@jontooley2530 Cool
8 phase sequential explains an intersection near me that drives me nuts.
But what if there's somebody waiting on the left turn lane but nobody waiting on the side street
If there is no detection on the side street and there is a protected left turn at the end of the max cycle length for the main Street, the opposing through movement would terminate allowing for the left turn to serve green. After that movement has been served it will then terminate and then cycle back to the opposing through Street movement.
Great video. If I had a question for you regarding some traffic signal gear, how might I go about asking you?
Send me an email at Michael.Matthew.Love@gmail.com
What is the difference between intervals and splits?
An interval is a term used to describe a set amount of time a phase is served within a cycle...
A split is a term describing an interval assigned to a phase during coordination... I haven't made a video on coordination yet, but I should!
Thanks for the posts, just wanted to ask if you know any sites/channels that explain SCATS programming for phasing sets of traffic lights?
I don't because we don't use that here.
Actuated Signal Timing Design
Signal Timing Design
Actuated Signal Timing Design
Queuing Theory
What does VDC means on a conflict monitor
I am assuming that DC voltage but, usually it is 24 volt DC 1 and 24 volt DC 2
What manufacturer is the conflict monitor?
welldone...
can you do video for signalised
roundabout
That would be interesting video, we have nothing like that where I am.
I love this video and I just hit subscribe, thumbs up for this video. could you please make a video about dual-entry for me?
Its a setting in the controller. Used usually for side streets. Demand on either side allows both sides to be serviced
What’s the difference between a phase diagram and a stage diagram
I have never heard the term "stage diagram" but it may be used somewhere in the world to describe something similar.
Are you offering any web classes?
Someday maybe but I am far too busy to get that going. I will do my best to try and offer as much information as I can for free on RUclips. Someday maybe I might be able to do an online class.
Hi
I have an example can u help me !?? Please
Yes what is your question?
I drove last time in x place. My humble car.
Q
M
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****
Traffic jam.
2 minute video with 13 minutes of wasted time. I can't watch this.
You could always increase the video speed.
@trafficsignalstraining7673 I like your response 😂😂😊