>I was in Boston a while back and I came to a crossroads. There was no stop sign, no light, nothing. I eventually just had to... go. I got to my hotel and I ask

>I was in Boston a while back and I came to a crossroads. There was no stop sign, no light, nothing. I eventually just had to... go. I got to my hotel and I asked about it, and the concierge was like, "oh, its just like that". I asked how people are supposed to know to stop (or not to) and he replied, "you just know". It baffled me because _clearly_ you don't just know.. because I was there and I didn't know. What happens if two people just drive through the intersection at the same time. You got there without incident didn't you? Those sorts of intersections get treated like N-way rolling stops in practice. If there's someone who'll obviously be there first everyone adjusts speed so everyone can roll it without stopping. If multiple vehicles arrive at the same time negotiations ensue.