There’s a difference. A road is meant to be a fast connection between points at the ends. This calls for forgiving design and higher speeds.
Meanwhile, a street is meant to be for allowing access to the nearby land. That warrants lower speeds, and the expectation that anyone can be on any of the sides as they see necessary. A street should function less like a vehicle artery, and more like an outdoor room.
Notice that these are incompatible uses. North American traffic engineers clearly didn’t, allowing main streets to become the main thoroughfare, i.e. the main roads through an area as well. This produces the most dangerous type of transportation infrastructure: the stroad. Which is both meant to be a fast connection AND access to the nearby land, and in doing so fails at both.
If this stretch of car infrastructure you were discussing is supposed to be a street, vehicle throughput should probably be one of the last priorities, and vehicles are better off on a road a few blocks over.