what a brutal retail environment the last few years have been

And I don't just mean the recession.

http://seekingalpha.com/article/294454-time-to-pull-the-plug-on-best-buy

Transitions are tough.

TART: I encourage you to use this acronym

Tahoe Area Regional Transit (thank you, H.!) is the most easily found example of TART in transit, however, Traverse City has a trail network called TART (Traverse City Area Recreation and Transportation Trails according to http://www.traversetrails.org/about/faq/).

I wish there were more, however.

Here's some history about the FART (Fairfield Area Rapid Transit).

http://www.dailyrepublic.com/featured-stories/new-community-column-kicks-off-with-memories-of-famed-fart/

And a modern version for hire:

http://www.shortbusrides.com/

Foothill Area Rapid Transit, a "Premier Limo Bus Service"

And from Italy, where FART doesn't mean what it means here:

Ferrovie Autolinee Regionali Ticinesi (FART)

http://wikitravel.org/en/Rail_travel_in_Europe

People do use CART, MART, etc.