DURHAM, N.C. — It’s been 35 years since John Parker died after a pickup collided with the bike he was riding on Cheek Road in east Durham before school. He was 6. His mother, Deborah Melvin-Muse, doesn’t display photos of him, the second-youngest of six children. His brother’s birthday was the day after the crash — and he hasn’t celebrated it since. An older brother carries a deep sense of guilt because he was looking after John that morning. And Cheek Road, in a predominantly Black neighborhood, still lacks sidewalks for children to safely make their way to the local elementary school. This, …