It's estimated that more than 100,000 people turned out yesterday to bike, skate, run or meander through seven and a half miles of streets closed to motorized vehicles from East Hollywood to Boyle Heights. CicLAvia was enthusiastically backed by Mayor Antonio Villaraigosa, who rode with Lance Armstrong. Frances Anderton, host of KCRW's DnA program and a producer for WWLA? interviewed participants along the route. Her six-year-old daughter Summer rode her scooter.