Change 4-way stop signs for roundaubouts like most of the world. Not only does that increase throughput by allowing to yield they also increase safety by forcing a curve and avoiding frontal crashes. (Also, pedestrian crossings should and are normally set back a bit from the intersection, given some traffic calming like level crossings and a median island and have better visibility overall)
You can't just replace every 4-way stop to a roundabout, and the "rest of the world" doesn't do so either. The vast majority of the roundabout would have to cut across residential property.
"Roundabout vs. 4-way stop, which one is superior?" - Interesting Engineering: https://www.youtube.com/watch?v=brkrYdlMCsg