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- čas přidán 26. 01. 2017
- This is a TCT 8"-8"-8" signal from the Boston Massachusetts area. I have the signal set up as what was once a typical pedestrian crossing signal in Boston and Massachusetts. In the video the signal will go through the following phases of the sequence:
1. Flashing Yellow - this phase of the sequence was displayed on the main street facing signal head. In earlier years this yellow lens replaced the normal green lens. As well for the side street the green lens would be replaced with a red lens and would convey the same meaning as a stop sign. This phase would remain flashing until 1.) a pedestrian signal was pressed or 2.) Having a pre-programmed sequence timed to also slow the speed of traffic.
2. Yellow - this follows the same as when a normal traffic signal is changing to red. This type of signal typically the standard 3-5 seconds for the yellow change, but some holder signals had a longer yellow phase.
3. Yellow/Red - this would signify the walk aspect to the vehicles and to the pedestrians. There are many variations on how the signal changes from the yellow phase to the yellow and red phase. The way I have it set up is the yellow will remain on and the red will light. But some other sequences would have the yellow go out and the red come on for a couple seconds and then the yellow re-lights.
4. Red - this phase of the sequence also varied in length it would be lit. But the reason for this phase was the same meaning of the flashing "Don't Walk" signal. It give the pedestrians who are crossing the time to finish and also tell them that the signal was going to change back to allowing the traffic to flow.
Then the signal would return to flashing green.
Typically this type of signal would be installed at an intersection where one or more side streets enter the main road where the side street would have has a stop sign controlling the traffic entering the intersection. So they would program this type of signal to flash so the main street traffic would know that the signal didn't control traffic movements on the side street as well as the side street signal would flash red in the spot where the green or yellow lens would be.
Now when the signal was placed in flashing mode the signals would 1.) be wired the simplest way allowing the center yellow to flash in all direction or 2.) in later years when the signal were wired properly the center yellow would flash and for the side street would flash red as it properly should.
not bad
2 questions.
1. How did you get that signal?
2. How did you get it installed?
I'm actually interested in these things.
James Calender well.
1. I got this particular signal off of Craiglist with two others. If you’re looking for one you can find them on Craiglist, EBAY, Letgo, Facebook Marketplace. As well there are some used signal resellers such as Twin Green ( twingreenonline.com ) who specializes in getting used signals and reselling to collectors.
2. As for installation, I restored the signal myself by sandblasting the original paint, cleaning parts. Then reassembled and wired the signal. It’s painted into Boston black.
The signal came with the slipfitter which accepts 4” pipe. So I used a pre-cut 24” section of 4” PVC sewer pipe with a toilet flange attached to a plywood base. I also added a metal single switch box for a on off switch.
For the controller, I used a display controller from JoezGarage ( www.joezgarage.com/ ) and had him program multiple custom signal sequences in addition to some of his standard sequences. And wired accordingly.
As for the lenses, the signal came with red, yellow and green polycarbonate lenses, I had to do a headlight buffing to restore the shine back and make them look like glass. In the video I swapped the green with a yellow lens I have as a spare, it was to demonstrate in the video for a flashing yellow.
I also want to do a video on the signal that have a steady or flashing red in the green section.
Flashing yellow left turn ball, Not arrow?
Budgie AlarmTech MightyEagleAlarmFan83823 yes this was a typical Massachusetts pedestrian signal setup. Back around the early 1990’s these signals would have been from a flashing green ball to a flashing yellow ball.
The main through street would have been setup as a Red/Yellow/Green or Red/Yellow/Yellow and the side street or complementary pedestrian signal would have beeb Red/Yellow/Red wired to flash all the bottom sections at the same time, then cycle to all yellow in all directions and then either directly to yellow and red or to red and yellow would relight a few seconds later. Then once the pedestrian phase was finished it would go directly back to flash or remain red for a few more seconds before returning to flash.
The flashing yellow/green and red would have been use at intersections where traffic from one or a few side street would be entering the intersection, so the same traffic rules would apply if it was just a flashing red/yellow beacon. With the only difference being all traffic would have to stop for the pedestrian phase.
Now there is a variation where the flashing green and red balls would have remained steady. This would have been used at either a crosswalk only or at an intersection where the side streets would be one way with traffic flowing away from the intersection with no legal traffic flow intersection the intersection from the side street.