Fare gates and free parking to fix the downtown's woes... sometimes I wonder if Edmonton is even capable of change.
Sometimes the smallest things make one big difference, or are at least the first stone in an avalanche.
Fare gates would make the LRT safer, which in turn makes it more attractive for people to use it to come Downtown (and leave their cars home, or at park-and-rides). You wouldn't believe how many people I've heard, recently, that avoid the LRT, even if it would be convenient to use, because of the constant safety issues. And they end up deciding to drive to places like Windermere or the West Edmonton Mall, instead of coming Downtown, because if they're going to drive anyways, might as well enjoy the free, easily available parking and the perceived safety of these places.
One of my best friends is a Vancouver transplant who chose to live by the Stadium LRT station, so that she could commute to work at the U of A and come downtown for food/entertainment. She didn't even own a car until he moved here, and tried staying like this for a few months, and gave up because of the aforementioned perception of safety. Now that she owns a car, she could very well choose to at least drive downtown, but paid parking makes it a hassle she's not willing to overlook, especially considering that her options for food and entertainment in other places are at least just as good, but generally better, in other places. Having fare gates and/or free parking after 6pm in downtown would almost certainly change her mind on this.
No one here is saying that these two things are going to solve all of the problems in Downtown, but small actions can go a long way. You couple that with better upkeep and some beat cops patrolling, I'll bet you that the perception of people regarding downtown, and their willingness to come here, will change dramatically.
As it has been discussed here, and in other threads, here is a list of small, and relatively cheap and/or simple, things that would go a VERY long way towards improving people's perception of Downtown, and it's attractiveness to those living elsewhere:
Fix (and maintain) the sidewalks
Repave the streets
Install fare gates in the LRT
No parking fees after 6pm
Better ostensive policing
Maintain the cleanliness of roads and sidewalks (proper sweeps/washing of sidewalks, clean graffiti, etc...)
Better snow/ice removal from sidewalks in the winter
Some bike infrastructure (more bike racks, better intersections, etc... would help attracting more people who live in central neighbourhoods)
None of these is complicated, most of them are fairly cheap, all of them would help improve the area significantly and, if done together, could very well be enough to create some momentum, especially for businesses (which in turn, could help attracting more residents).
For instance, I would bet some good money that implementing all of these would cost a lot less than building (and maintaining) a goddamn state-of-the-art Rec Centre in Lewis Farms, which while needed, will benefit far less people, for example.