Little can add to the charm of a city like a historic streetcar line. The McKinney Avenue Streetcar line in Dallas has been operating for.... Little can add to the charm of a city like a historic streetcar line. The McKinney Avenue Streetcar line in Dallas has been operating for about 20 years, connecting the Dallas Arts District (most of which wasn't existant 20 years ago) with Uptown and the West End. A handful of historic cars operate on the line including one known as "Rosy" which I caught while visiting the Dallas Museum of Art yesterday. The McKinney Streetcars experienced their highest ridership in 2009 when more than 300,000 riders took to the rails. Moreover, the group that runs the trolleys says an increasing number of commuters are using the line. While most of the cars predate the Presidential Car Commission, two Toronto PCC's are undergoing restoration for use on the line. McKinney Avenue Transit Authority