Been reading what Jane Jacobs had to say about parks and it seems there is a lot of barking up a lot of wrong trees by planners and pundits here:
Here it is necessary to take issue with a common belief about cities - the belief that uses of low status drive out uses of high status. This is not how cities behave, and the belief that it is renders futile much energy aimed at attacking symptoms and ignoring causes.
Those who blame the most vulnerable users of Gore Park, also incidentally those with the least influence towards its current and future state, truly do not understand how cities work.
To summarize the rest of her observations, the success of a city park depends on a multitude of surrounding uses generating a diversity of users at different times of the day. Where one use is preeminent (office workers for example), periods of low demand generate a vacuum.
Gore Park needs more quality residential uses surrounding it. It needs more street level retail and commercial, and it needs to lose the high speed traffic cutting it off on one side.