Travelers in the D.C. area will find that the week starts warm, then temperatures trail off. The most likely days for rain are Tuesday and Wednesday, the Capital Weather Gang says. It should be warm enough for most of the big road work projects to proceed. In Maryland, for example, workers are wrapping up preparations for the next week’s scheduled opening of Intercounty Connector to Interstate 95.

Transit riders and downtown drivers should note that the Georgetown Hoyas play at Verizon Center at 7 p.m. tonight, then Cirque du Soleil is there Wednesday through Sunday nights. Looking ahead to the weekend’s Metro service, free shuttle buses are scheduled to replace trains between Pentagon City and King Street on the Blue and Yellow lines.

Here's a look at some other issues on the roads and rails this week.

George Washington Parkway

The National Park Service is working to stabilize a rock wall on the George Washington Parkway about 500 feet north of the Spout Run Parkway exit.

From 9:30 a.m. to 2:30 p.m. weekdays, the northbound left lane will be closed, the park service says. One lane will remain open during the work hours. At rush hours, all parkway lanes will be open.

The park service is encouraging drivers to use alternatives, such as westbound Route 50, or exit at Spout Run Parkway, go to southbound Route 29 and take Interstate 66 west to the Capital Beltway.

This past weekend, the work closed the two northbound lanes from just north of the Spout Run exit up to Route 123. The park service says another such closing may be necessary this coming weekend.

This work is scheduled to continue into late December.

Constitution Avenue NW

The roadway reconstruction may close up to three lanes in either direction on Constitution Avenue NW between 17th and 15th streets for repairs to the road base and paving. At least two lanes will be open in each direction during rush hours.
The lane closings between 23rd and 17th streets may vary daily.

Hunter Mill Road

The Virginia Department of Transportation has closed the Hunter Mill Road bridge over Difficult Run in Fairfax County till next Monday to replace the corroded bridge with a temporary panel truss bridge.

A 3.2-mile detour will be set up to get around the closed bridge, which is between Hunter Station Road and Lawyers Road.

Southeast/Southwest Freeway

The District Department of Transportation will close the westbound lanes of the Southeast/Southwest Freeway between Pennsylvania Avenue SE and 11th Street SE from 10 p.m. to 5 a.m. Monday through Thursday. The entrance ramp to the freeway from Pennsylvania Avenue SE also will be closed. Watch for detour signs.

On the eastbound freeway between Ninth Street and Pennsylvania Avenue SE, drivers will encounter 20-minute traffic stoppages.

During this time, workers will be installing girders for a new bridge over the freeway.

Georgia Avenue

The District is resurfacing lanes on Georgia Avenue NW between Kansas Avenue and Otis Place through Nov. 23, requiring some weekday lane closings. (At all times, drive carefully through this zone, because the pavement is very rough.)

Here’s a guide to the open lanes:

7 to 9:30 a.m.: Two southbound lanes and one northbound lane will be open.

9:30 a.m. to 3:30 p.m: One southbound and one northbound lane will be open.

3:30 to 6 p.m.: Two northbound lanes and one southbound lane will be open.

6 to 7 p.m: One southbound lane and one northbound lane will be open.

Prince George’s bus meeting

Metro plans to hold a public meeting tonight on its revised plans to adjust bus service in Prince George’s County. People can submit comments about the route and schedule proposals at the meeting.

The transit staff had proposed to discontinue service on the R3 bus route. Metro says the revised proposal would modify the R3 plan to provide rush-hour-only service between Greenbelt and Prince George’s Plaza stations. Service changes would not start earlier than mid-2012.

The meeting will be at the Hyattsville Branch Library, 6530 Adelphi Rd., Hyattsville. It will start with an open house at 6 p.m., followed by the public meeting at 6:30 p.m.

The library can be reached via Metrobus Routes R3, 86 and F8. The nearest Metrorail station is Prince George’s Plaza on on the Green Line.

Megabus moved

Megabus, the intercity bus service, has relocated its bus bays to the remodeled bus deck inside Union Station’s garage. This is part of the redevelopment of that garage level into a D.C. hub for intercity buses.

Rhode Island Avenue Metro

Work continues this week on the staircase that leads from Rhode Island Avenue to the Rhode Island Avenue station entrance. Riders can enter the station via Washington Place through the bus bays or cross Rhode Island Avenue and use the pedestrian bridge to the station. Bus stops have been relocated temporarily.

The construction is part of the big development project adjacent to the Red Line station. Workers are building 274 residential units, 65,000 square feet of retail space and a parking garage.

Red Line night work

Metro is replacing track circuits on the Red Line on weeknights as part of the safety program recommended by the National Transportation Safety Board following the June 2009 crash on the Red Line.

Circuit replacement eventually will lead to restoration of the automatic train controls, though no date has been set for an end to manual operation of the trains.

To create a safe work area, trains will share single tracks along various parts of the line starting at 8 p.m. Metro said it will operate more eight-car trains during these late hours to ease crowding resulting from delays.

Beltway bridge

On Tuesday, the Maryland State Highway Administration plans to shift traffic on eastbound Route 202 onto the north side of the bridge over the Capital Beltway. This will be done between 7 a.m. and 3 p.m., requiring several single-lane closings in both directions.