The west side garage is roughly 4000 parking spaces while the Universal parking garage is 2100. So the west side garage is double the size and thats only the first of 2 garages planned for disney springs. The second disney springs parking garage will have approximately 2000 additional parking spaces.
Once that garage opened and the ramp to enter it from the elevated road, it was the beginning of the end of parking issues there. Once the second one opens, I think they will finally have adequate parking as I don't think the boost in people visiting will increase that much... unless of course, they don't start closing the parks early to only allow after hours guests that pay a lot to stay late.