So I hooked up a traffic advisor to one of my UFM8s I have sitting around that I have only used as a flasher. I have to say as a traffic arrow it was pretty underwhelming. This clearly isn't meant to be a traffic advisor control.
Once you scroll to the last pattern by advancing through with scanlock you get to "traffic advisor pattern", which is a mode more than a pattern. It gives you basic arrow functions using all 8 lamps. Once you are in traffic advisor pattern the wires do what they say. You have a control wire for left, right, combining the directions makes center out and there is a flash function. That leaves an unused control wire, Control wire number 4, it does nothing. Also of note is that if your traffic advisor has arrow shaped ends you can't disable the leading end and it looks odd starting from an arrow (I know these aren't common anymore). There is only one "pattern" of traffic arrow, it's a 2 or 3 lamp rapid chase with triple flash at the end lamp.
If this flasher had the ability to save several patterns it would be decent. You could flip between warning and traffic arrow. As it stands this is a "pick a pattern and keep it" design, and the arrow function is considered a pattern, and it isn't a great one. The only advantage is that there is no control head. So if you wanted a switch only based design this would be an option.
I should have done a right or left arrow when I had the arrow shaped end lamps to show that all 8 heads still activate. Either way here is a basic idea of what it looks like with 8 heads and 6 (connecting the end lamps to two outputs). The extra dwell time on the first light in the series is because of double connecting the end lamps to make up for the 6 head bar.
