A bicycle boulevard is a special kind of road that is designed just for bikes, so they can ride safely and comfortably. Imagine getting on your bike and riding to a friend's house or a park, and you don't have to worry about cars or trucks driving really fast near you. The bike boulevard has signs and markings that tell drivers to drive slowly and to watch out for bikes. The road might have special crossings that only bikes can use, and sometimes there are even little islands in the middle of the road to help bikes cross the street safely. Basically, it's like a special bike playground!