- In NYC, for example, right turn on red is illegal within the five boroughs (you can always spot NJ drivers you don't know this or don't care). Right turning on red is incredibly dangerous for cyclists and pedestrians, way more than traffic lights vs four-way stop signs;
- How often the light changes is a HUGE factor. I've read that there are some pedestrian crossings in LA at lights that take up to 10 minutes to change. Ridiculous. But in NYC, or at least Manhattan, light changes are quick. I suspect it's designed so a pedestrian never has to wait more than ~45 seconds;
- One way streets are better than two-way streets. There are less variables to be concerned with. Drivers may not like one-way streets. They're demonstrably better for traffic flow, pedestrians and cyclists however;
- Having an island in the middle of a two-way road is HUGELY helpful to both cyclists and pedestrians. The ability to cross halfway in relative safety makes an incredible difference;
- Having separate walk lights for each direction when there is an island is the absolute worst. This typically hugely increases the time to cross as they aren't coordinated;
- The speed limit matters. If the speed limit is under 25, cars rarely go too fast to be a problem. I've had Google Maps street directions that were basically "just make a run for it" across a highway with a speed limit of 45. There are places that say a road has a cycle path that is basically the hard shoulder on an interstate. Drivers will weave through those at 70+ to overtake 1 car. People have died that way;
- Traffic lights can decrease safety because drivers will speed up to make a yellow light. Usually I don't even have to look at a traffic light to tell when it turns yellow. I'll hear the engines revving up. I've nearly been killed this way when a driver accelerated to make what was a red light and they sped through a pedestrian crossing that had signalled pedestrians had right of way. This doesn't tend to happen at four-way stops.
- As a cyclist, I tend to find drivers give you deference at four-way stops but this may depend on the area and if it has a lot of cyclists and pedestrians. I actually prefer to give drivers the right-of-way when they have it. For example, a driver may stop at a four-way stop seeing me coming when they got there first and should just go. And I know I wasn't going fast enough to interfere with them anyway. This forces me to ride in front of them when they have right of way. I never like doing that.
So it's hard for me to judge this particular intersection without knowing the full context.