Dedicated bike lanes have actually been going out of style. Especially those using half of the sidewalk with only symbolic separation from pedestrians are plagued by the inattentiveness of pedestrians, and are usually too narrow to pass other bikes. The pavement is also at higher risk of damage, because these lanes are usually right next to any trees lining the roads, and their roots quickly create breaks, bumps and potholes.

What's now preferred is a marked lane in the rightmost car lane, or to just dedicate a complete lane to bikes.