more bicycle, pedestrian only grade-separated crossings would really improve bicycle safety and travel times. these bicycle tunnels and (less commonly) bridges

more bicycle, pedestrian only grade-separated crossings would really improve bicycle safety and travel times. these bicycle tunnels and (less commonly) bridges are common in late-20th century planned communities like The Woodlands and Kingwood in Texas. https://www.google.com/search?q=bike+path+tunnel&safe=active&prmd=minv&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiT_9XKxuDSAhUX7mMKHTyZD2cQ_AUICCgC&biw=412&bih=604 https://www.google.com/search?q=bike+path+tunnel&safe=active...