A mere forty-five and a half years after the Beatles made their first American concert appearance at the Washington Coliseum on 3nd and M Streets NE, Paul McCartney is making his way back to town — except tonight, the venue can fit nearly 100,000 people, is located in Landover, and tickets most certainly did not cost two dollars. My, how things change. Anyway, tonight’s show should be a good reminder, traffic-wise, for local drivers in advance of the upcoming Redskins season: one should expect quite a bit of volume on the Beltway for some time before and after the concert, obviously. Those looking to avoid such vehicular unpleasantness should take Metro, although prepare yourself for delays due to track maintenance. Hey, at least by using public transportation you can bide your time by counting the number of “1976 Wings Over the World Tour” shirts in your immediate vicinity.