Union Pacific adding Chicago intermodal service

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Union Pacific adding Chicago intermodal service

Where & when in Chicago is this UP sevice originating from?

The hotter Z trains depart, I believe, from Global 2. This would include the ZG2OA to Oakland (possibly a mid-day departure?) (much of it is set-out in Sparks, NV and becomes a separate train to Lathrop/Stockton, CA) and the ZG2BR to Portland/Brooklyn Yard. May depart evenings? I am not certain of the days of operation but this article implies not yet 7 days a week so probably not on Sundays.