<span>All of the above are designated places for the exclusive use of bicycles. A sharrow is a street marking installed at locations to indicate where people should preferably cycle while a bike lane is just a portion of the roadway for the exclusive use of the bicyclists. A bike box is <span>a special intersection that allows bicyclists ahead of motor vehicle traffic make it safer for them to turn or cross. </span></span>
The Supremacy Clause is a clause within Article VI of the U.S. Constitution which dictates that federal law is the "supreme law of the land." ... Under the doctrine of preemption, which is based on the Supremacy Clause, federal law preempts state law, even when the laws conflict.
