It needs to to go back to just two lanes and no stop lights. I liked it that way.
I don't recall there being no traffic lights in the 1990s but I know there wasn't a traffic light at St. John's Road and it was only two lanes initially. There were always traffic lights at the 235/4 and 235/944 (where Airport road is) intersections and probably a bunch over near the base.
Charlotte Hall's got the same problem just outside of Charles County. There's even a section where it's 40 MPH going east for some reason; same thing in Mechanicsville only it's 45 instead.
As for Leonardtown that part you mentioned I think was always there when I lived here before.
I've been to other places with stroads such as Burleson Texas and I don't remember having as many problems with them, though on the other hand I used to be near the interstates.
For the worst roads I've driven, none of them are in Maryland, closest to that was the old Potomac River bridge going into Dahlgren (drove it twice, and never went there again) and Three Notch Road.
Highway 67 south of St. Louis (Near De Soto) however is the
worst road I've
ever driven on and I only had to drive it once. Trying to get in and out of where I had to go on that road made me think I was going to feel what death and the afterlife were like because of how horribly designed it was!