Anyone looking on a map for the Washington area’s outer beltway, the western bypass or the D.C.-Baltimore Maglev finds out that the transportation projects that people buzz about aren’t necessarily the ones that get built. Or, at least, they don’t get built within a decade of the original estimate.

But as riders on the Silver Line and drivers on the Intercounty Connector can attest, some long-range plans actually happen. So it was with that in mind that I looked at the list of road and transit projects scheduled to become part of the region’s long range plan Wednesday. The Transportation Planning Board, with representatives from the region’s local governments, will add them to what’s known as the Constrained Long Range Plan. This is a financially constrained list, meaning that funding for the projects has been identified.

I picked out five projects of special interest among those that jurisdictions want to add to the regional list.

1) The District Department of Transportation proposes three new transit lines, one from Union Station to Georgetown, another along M Street SE/SW and a third crossing the Anacostia River along Benning Road. The Union Station-Georgetown line and the Benning Road spur would connect with the District’s H Street-Benning Road streetcar line, scheduled to open by year’s end. The M Street line would pass near Nationals Park and the Navy Yard, crossing the Anacostia River via the 11th Street Bridge’s local span. This new network, a total of 7.4 miles of track, has an optimistic completion schedule of 2018 to 2020.

2) The revised long-range plan also will incorporate the District’s studies on adding managed lanes to the 14th Street Bridge, the Southeast-Southwest Freeway (Interstate 395/695) and I-295. Managed lanes could be High Occupancy Vehicle lanes at first and then converted to High Occupancy Toll lanes, such as the ones on the west side of the Capital Beltway in Virginia.

3) The Maryland State Highway administration is resubmitting its plan to complete the interchange on the Beltway at the Greenbelt Metro station in Prince George’s County. This would help out the drivers heading north on the Beltway’s outer loop who have no easy access to the station in its current, partially built configuration. The project also would add auxiliary lanes on the Beltway between the Greenbelt Metro station and Route 201 interchanges, to make merging easier. The SHA estimates construction could be done by 2020. (This project is an example of why getting on the regional list is significant but not decisive. It was on the list before, but Maryland removed it in 2010 for financial reasons.)

4) The Virginia Department of Transportation wants to widen heavily traveled Route 1 from four to six lanes near the Quantico Marine base in Prince William County. The work, which would extend for about 2.4 miles between Fuller and Russell roads, could be done by 2025, in VDOT’s estimate.

5) Virginia also wants to widen Chain Bridge Road (Route 123) from six to eight lanes in the middle of Tysons Corner, between Leesburg Pike (Route 7) and the Beltway. VDOT estimates the project could be done by 2021.