How can we improve the jogging trail on Heights Blvd.?

How can we increase the safety for the Houston Heights Jogging Trail on Heights Blvd?

We have had many major and minor accidents on Heights blvd involving bicyclist, joggers, and pedestrians but not many safety upgrades have taken place.  How would you update the trail, would you update the trail?  In the evening the trail is nearly pitch black, but joggers still continue to use the trail.