Speaking of the Great Hill, don't you just love it when the 'hammer heads' doing 25+ mph as they descend that s-turn, come up behind one of the neighborhood kids on a mountain bike and call out, "just hold your line kid!"...???
Yeah there are real safety issues in the northern end of the park. There very few pathways for pedestrians, kids on scooters, skaters, the disabled guys in wheelchairs, or anyone who might want to go clockwise around the park so they wind up in the recreational lanes.
It's not unusual for crowds to spill out onto the roadway, at the bottom of the s-turn, when people are waiting to get in, or leaving the skating rink/pool. And to make matters worse, even when the park is closed to traffic there are still police, parks, and errant cars using the roadway. So what's worse, traffic when you expect it or traffic when you don't?