MTH 30-1089-x traffic signals

Couple of ideas here, here's a video of a guy that wired them all together to one control box. As far as I know he hasn't reported any problems with them, but you could re-check his youtube channel. He may also be a member here, but I don't recall his user name? His youtube channel is BobotsTrains. Video here: Getting MTH Traffic Lights in Sync

I think Arduino would be another way to do this fairly easily. Using Arduino, I have made a stop light sequence for one set of lights (just 3 LED's, Red, Yellow, Green), but I think more could be added without a lot of trouble.

I also have a circuit schematic around here somewhere using 555 timers and a 74xxx counter chip of some kind. I don't remember all the details, but if you are interested I will try and find it and post it for you. I actually tried this one a couple years ago and it worked with four sets of 3 lights each. I found it on the internet, but I think I had to make some changes to get it to work, if I remember correctly.  

Thanks for the You Tube link.  I didn't see a reason you could not parallel another set of two headed poles, would just dim output. 

This was just more academic exercise than for real.  These signals would not work in my 1950s layout as I don't believe these pole types were prototypical at that time.  However the R/Y/G timing sequence is right as the 2-3 second delay between all red lights to clear intersection then one side going green wasn't implemented until much later than 1950s.

Oops gotta go, my whole house genset just kicked in for weekly testing.  Have to check oil levels and stuff.

Don't remember exactly, but I think this is the correct drawing of what I had working a year or two ago. The original schematic came from the internet somewhere, but I had to fiddle with it to get it to work properly as I remember, then we started looking for a house and moved. I would have to breadboard this again to say for sure it works, but I think it should be close if not the final working one I was messing with.

Anyway, here it is if you want to play around or try making one to fit your layout era.

Just a FYI, the x's at the wire crossings mean no connection at that point.

The MTH traffic signals do not look like any around Chicago . Chicago traffic signals consist of a vertical pole and horizontal stem where the lights are attached.

There are no curved poles here. A better design can be found at  Leonard's Miniature traffic lights:     

http://www.miniature-traffic-lights.com/

He has controllers that attached one of the poles.