Hello there, I'm glad that you asked cuz this is a very good question. This time of year we have more darkness than light it feels like, and the dogs still need to be walked.
I have dark colored dogs, and not all of the streets in my neighborhood even have a sidewalk, it's not a terribly busy residential neighborhood, but it doesn't matter. Even one car, if they can't see you, can have disastrous results.
Some of the things that I do is that I walk against the flow of traffic, so I can see the cars, I don't want to hear them coming up behind me, I want to see them.
I make sure that my dog is not on the road side, they are on the lawn/sidewalk/house side of me. It just gives them that much more room in case she smells something weird or see something unusual I don't want her to accidentally step in front of a car,
I have a leash I hold with two hands, one hand tightly, the other hand has more of a lead, so that gives her the opportunity to sniff and change direction ever so slightly, but I don't give her so much lead that again, she could walk in traffic.
I have a winter jacket that's not the lightest color in the world but I did purchase one of those high visibility workman's vests that you can get quite inexpensively, true I'm not exactly the most glamorous fashion statement out there but it's dark and I'm a dog walker so, too bad. My vest is bright orange with big silver and yellow lines on it, extremely high visible in the day and even more so at night. I also purchased a reflective collar for my dog, that is not her main collar, but it's one that I pop on at night.
She usually wears a harness when we walk, which also gives me more control over her, and I've attached shiny/reflective parts to the harness as well.
I figure the more visible we are, both of us, the safer we are.
I also have something called a lightey leash. I bought this a long time ago, And I don't even know if they still make them. It's a dog leash, it came in several colors that were bright neon, it takes a couple of AA batteries, and when you push the button the LED lights in the leash come on. Like a string of lights. They can either be solid or they can blink. I felt that using this leash wasn't quite what I was looking for, it's a bit of a visual distraction if you're walking and a driver or staring saying what is that bright colored line or flashing line? The last thing I need for them to be doing is trying to stare at whatever it is that I am that they can't figure out an accidentally hit us.... So I stopped using that as a leash that connected myself and my dog and I started using that like a sash, that I wear around myself kind of like a beauty pageant sash? And I don't put it on flash, because I think that's too visually distracting but I keep it on solid, when I walk. So, with me being on the closest side to the road, with all of us wearing reflective bits, I figure, we can be seen.
Maybe that sounds a bit excessive, but I don't want myself or my dog to get hit by vehicles when she's out for her evening walk. If I could, I wouldn't go out for an evening walk at all but again it gets so dark so early these days, it really can't be avoided.