Richard Layman writes here (presumably about Prince George's County AKA "P. G. County") that:

"[T]here isn't a satisfactory road network that moves people east-west and around the County, other than the Interstates"

before digressing a little about Montgomery County:

"So the whole argument about intensification of land use practices (i.e. 'Leggett taking more hands-on approach to growth policy' from the Gazette) in Montgomery County, Maryland is fascinating to me, both in terms of my learnings and understandings based on living in DC for a couple decades, witnessing both the decline and rise of the center city, and my having to deal with this as a planner in the Baltimore region (at least through the course of my project, which ends next July), in a county that is similar to Montgomery, but with an even greater dependence on the automobile, and less in the way of robust transit resources (Montgomery has a number of stations on the high capacity red line subway, which connects to four other lines, and one of the best suburban bus operations in the U.S., plus Metrobus services, even if their County Dept. of Transportation isn't as progressive as we think, 'riding' on their two decade old decision to create RideOn ever since).

The Gazette this week is full of letters about how rebuilding the Safeway supermarket in Montgomery County's Wheaton community (last week's article which touched this off, 'Planners hope Safeway would revive Wheaton'), a site which is a bit farther from the subway station than the Safeway on Georgia Avenue is from the Petworth station in DC (which I figure is destined for a similar kind of intensification), into a mixed use development with a supermarket on the ground floor (just like at CityVista at 5th and L Streets NW) andapartments-condominiums above, is a disaster of major proportions."

It's a very interesting blog post and I strongly encourage you to read it!