answer:A boulevard is typically a large main road. In other words, it often has more than just 2 lanes. A boulevard is not going to be a small residential road or a windy 2-lane road through the mountains; it’s going to be a big 4 or 6-lane road that goes through the central part of a city. The other ones you mentioned don’t really have any “requirements”, but from what I’ve noticed, avenues and streets never dead-end. They almost always go through and they rarely curve or they do not curve much if they do. “Roads” can be absolutely anything, of any length, size, shape, etc. Other things I’ve noticed: “Ways” tend to be short and they tend to go through; “Lanes” are usually straight, they can either go through or dead-end, “places” are short and dead end”, “courts” dead end, usually in a cul-de-sac, “drives” always curve, etc.