Seems like the huge curbs would help with debris getting kicked into the bike lanes. Our city now adds "share the road" bike lanes with new streets or repaving of older primary side streets. Unfortunately, all the debris in the car lanes get kicked into the bike lanes (broken auto parts from accidents, nails/screws, goathead stickers, glass, etc...). Most of my flats work commuting are from running over that kind of man made debris and were not prevented with Mr. Tuffy+sealant (always the rear tires). Lucky to live in a city with wide level sidewalks with ramps at every corner as a back-up.