At the risk of sounding like a D-Bag, I'm looking for a place to run sprints [[at a track) and stairs [[like at a stadium).

I tried running the stairs in the ampitheatres at Hart Plaza, but I was hoping for something about twice as long. And I used to do 100m and 400 m speed runs at U-D Jesuit, but I'm looking for a track that's a little bit closer to downtown.

Anyone know of some places that are safe and fairly convenient?

Thanks - CTY