CHICAGO (CBS) — Peapod is test-marketing a new campaign to try to catch people on-the-go who would like groceries delivered to their homes.

As WBBM’s Bernie Tafoya reports, Peapod has set up billboards along the Chicago Transit Authority Red Line subway stop at State and Lake streets.

LISTEN: WBBM Newsradio’s Bernie Tafoya reports

But the billboards look like grocery store shelves, and are interactive. People can use their smart phones to order any one of dozens of items that are pictured on the virtual shelves, from fresh produce to diapers, the Chicago Tribune explained.

The Tribune reports Peapod first tried the idea in Philadelphia, and now has similar virtual stores at nine Philadelphia commuter stations.

On Thursday, the virtual shelves featured Huggies diapers, Bounty paper towels, Barilla ready-to-heat pasta, and fresh produce including apples and bananas, the Tribune reported. Making a purchase requires a free peapod bar code scanner app.

The newspaper says Peapod will try out its test in Chicago for 12 weeks to determine if there is enough interest to expand the program here.