Performing a Traffic Signal Punchlist - Part 1
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- čas přidán 28. 07. 2024
- Performing a punchlist on new traffic signal installations are a MUST. Once the contractor is relieved of their responsibilities, you're the one that has to maintain it from there on. Hence, you want to make sure you're inheriting a top notch traffic signal system! Today, I start checking in the field.
If you want to learn a WHOLE lot more about programming, troubleshooting, wiring and repairing traffic signals, check out my membership, found here:
www.streetsmartstraffic.com/j... - Věda a technologie
Calculations you say? Yes please!
You got it! It's on my list then
Out of curiosity, what is the operating voltage for all the LED signals?
Interesting and informative👍👍
Great question!
These LED's are 120V. That includes the pedestrian signals as well. There are low voltage LED's out there that are meant to run with low voltage traffic signals. We don't have any of those systems however.
Seems like that's quite a few obvious oopsies by the contractor. Is that a typical number of punch list items to find on an installation of that size?
Good question. You hope to find as little punch items as possible (obviously). The contractor for this job does not do alot of new traffic installs. So alot of stuff was missed and/or needed fixed.
Just goes to show why performing a punchlist inspection is so important!
How do you know the difference between ground and green as in green light? Here in europe we use green/yellow striped to indicate PE ground, to clearly separating it from any signal wires that are green (there are a lot of signal wires that is green by standard, for example USB data+).
Also those raised foundation things looks dangerous as heck (not dangerous as in unsafe for health, but rather, dangerous when it comes to rust and moisture), it seems those meshes are gonna do the opposite - make so water go into and cause lots of issues, especially if it start pouring down. Here in sweden they bury the foundation below the ground, and also uses some sealing agent to ensure water cannot wreak havoc.
Hey sebastian! Great questions
The green wires for ground (found in the field) are a much larger guage of wire than the green wires for the leds. In the cabinet, components that have a green ground wire have a much smaller guage of wire than the green led field wires. And yes, some have the green/yellow combination you speak of.
We have found that the mastarms as shown in the video do fine against water. We previously grouted around the bottom of the mastarm (where you see the grid mesh in the video). Any moisture was trapped inside causing rust issues on the bolts. But I see you're point! Thanks for commenting!
@@streetsmartstraffic Im more thinking of the solutions where you instead of grout, use some rubber-like substance (you know, the black super-icky stuff that sticks to everything) to cover the whole base of the pole, and then screw it into the foundation so the bottom of pole touches the foundation, basically remove the whole 10cm space between the foundation and the bottom of pole.
Guess thats avoided because it makes replacement of poles much more difficult?
The idea is that if there is nowhere for the water to become trapped because that space is now occupied by rubbery super-icky stuff, then there can't become any water trapped.
Still you need a so called "weep hole" for any water that condenses inside pole needs to have anywhere to escape, but that could be a round small hole straight through the whole foundation.
Im just thinking it would become big problems if there become a downpour, with high floods, then water will find inside and make havoc. Guess there is not such of a weather problem in your location tough?
@@sebastiannielsen I think you hit it on the head about difficulty of change out. I do think the weep hole is a great idea. That probably would have helped with our previous grout situation. It was originally intended to keep critters out but the unintended result was moisture build up without an escape. Great points!
@@streetsmartstraffic I mean, why have the 10cm space at all? Critters wouldn't come in if the pole is mounted flush against the foundation. Pretty quite of a space for no apparent reason.
@@sebastiannielsen You know, that's an even better question lol. I don't know why it doesn't sit exactly flush to the ground...I've helped install poles and mastarms but my forte is on the operation side--not so much on construction. Maybe someone else on here can better explain that!
push button to walk on sidewalk 🤣🤣🤣🤣🤣🤣
I know, right?