The 16th Street Mall is floundering and smoking is not the problem.  Who wants to walk down a dirty street with no available restrooms and buses barreling down without notice.  Move the buses to 15th and 16th street. Open up the street for outdoor dining, farmers markets, provide areas for artist, and craft makers to sell their wares, provide areas for street artist to entertain, and provide activities centered around children & elderly particpation. Give incentives, tax breaks for small businesses to move into the area and make it a vibrant place to visit. And most importantly provide public restrooms that are monitored and cleaned on a regular basis.