I have no idea if they're replacing/placing a snow-melt system at Ballpark. I'll watch carefully and see if they do. The old concrete tactile strips on the edges of the platforms are near the end of their lives and must be replaced. Replacing them with the plastic variety that is missing a row of bumps right where the S70 handicap ramp touches down is a necessary upgrade to keep the system consistent, and therefore safe. It is expensive, but it isn't a waste of money to keep the 'physical plant' in good shape.
Also, this project was tied together with redoing the crossing on 13th south, which was in pretty poor condition. It's fixed now, and crossing the tracks on that street is no longer like falling into a ditch.
The hay-bales, I've learned, are a sound mitigation measure designed to reduce the noise of the concrete-cutting machines will cause to the surrounding neighborhood.
Looking at the temporary platforms being built, I've got to thinking how nice it would be if all TRAX stations built in the railroad ROW sections also had side platforms, and if bike lanes paralleled the whole route. How much nicer would that be for everyone? Instead of making TRAX corridors sort of back-alleys and hidden behind development, put a bike path down both sides and make it like the S-Line corridor, with apartments and pedestrian-oriented development offering access directly to the trails. Wouldn't that be great?
We already have a small example at Sandy Expo station, where side platforms and bike paths already make the place a much more connected and convenient place to catch the train.