What is the point of the larger retail space? Is the taxpayer paying for this? I'm all for updating the station to allow for better movement of people, but why create a whole new retail level? If I was a commuter I'd not be shopping, and if I lived nearby I'd be shopping elsewhere, especially since the shops on the Path generally close at 6pm and not on weekends.
How was the lower level concourse financially justified? Couldn't that have been skipped and instead the resources put towards advancing the great hall updates and other essential parts of the project?
More than half is food!
They are turning Union into a destination. Some real nice places are beginning to arrive. About half of the lower level will be food-related. A new restaurant called Amano opened in York concourse, as a small taster of the numerous establishments opening.
Slowly, the first "mall" establishments are beginning to open, not on the lower level.
The new Union Station restaurant I went to was open late....and fancier than most on PATH. I decided to skip a Lakeshore train to eat. So it worked for me. I think it will work (based on other cities I have been to, with flagship train stations)
In the upcoming 15-min RER era, you need much more space for passengers, and it helps spread rush hour out longer too, where some people may loiter with a meal before heading home, or such. Less rushing for a train and less crowding if you also have a boutique mall. And the lunch market is huge.
As for taxpayer justification, that sailed long ago. We all knew a full mall level was coming!
Tax worthiness is another matter of debate considering cost overruns of Union, but it will be 6 times bigger waiting space (3x concourse space + new mall/food level) which will help Union triple in passenger throughput. The leap from 1500 trains to 6000 trains a week, needs this.
Imagine 2-3x more people rushing through Union - that is the huge Union plan! Doubling width of PATH emtrances channels thru the food level directly from TTC, with a wide east-west pedestrian expressway that is level with TTC, zooming equal parts of people to York/Bay, underneath the large escalators of Bay and York concourses. Food court just happens to be part of periphery of these pedestrian channelways. So the capacity is needed.
Lemme dig up some old plan images....it will help give context.
EDIT
http://urbantoronto.ca/news/2015/12/union-station-taking-shape-new-retailers-and-td-partnership
Green code is food. So you can see it is a big amount of restaurants (a food court, plus a bunch of sit-in restaurants). I imagine open til 10 or 11. Will be useful to me, am really looking forward to it. At the new restaurant was the first time in a while I felt relaxed at Union. Very differnt vibe.
So, check out the pedestrian expressways coming, advertised to us in 2011:
http://urbantoronto.ca/news/2011/06/digging-deep-bigger-better-union-station
So the mall level has a transport purpose, to channel massive numbers of commuters (up to 3x as many as today, simultaneously) to underneath all concourses, in a much more expanded way, out of conflict of waiting passengers above.
You also notice that TTC is flush with a large portion of the lower level mall/food (no stairs). And the TTC pedestrian bandwidth is massively increased.
In this sense, this is justifiable taxpayer expense (maybe debated to what extent, though). It is an engineering accomplishment that a mall (er, "ped expresways") is being built under active floors, right under VIA concourse without shutting it down, etc...
Union is beckoning a massive GO expansion in the 2020s.