Driving Hot Spots

Here is a selection of road advisories. Weather and equipment availability can affect timing.

1. Springfield Interchange:

One lane on the Capital Beltway (inner loop) after the exit for Interstate 395 north closed for about 18 months. Other lane closures 9:30 a.m. to 3:30 p.m. Mondays through Thursdays and 9 a.m. to noon Fridays.

2. Burke Lake Road:

Road closed between Windward and Wilmington drives through Sept. 5 .

3. Route 1 Alternate:

Lane closures 9 a.m. to 3 p.m. daily at the Anacostia River.

4. Capital Beltway (both loops):

Left lane closed 9 a.m. to 3 p.m. and 8 p.m. to 5 a.m. at Route 450.

5. Capital Beltway (both loops):

Some lanes closed 7 p.m. to 5 a.m. and 9 a.m. to 3 p.m. daily between the Interstate 270 spur and Fernwood Road.

6. Interstate 270:

Left lane and shoulder closed 9 p.m. to 5 a.m. and 9 a.m. to 3 p.m. daily at the westbound spur.

7. Route 410 eastbound:

New temporary traffic signal will be activated Monday that will alternate traffic between Connecticut Avenue and Edge Vale Street.

8. Route 1:

Traffic will be stopped at 20-minute intervals between 9 and 10 p.m. Thursday from the Beltway to Fort Hunt Road.

9. Capital Beltway (outer loop):

Two left lanes closed 9 p.m. to 5 a.m. Monday through Thursday from the Wilson Bridge to Bald Eagle Road.

10. Capital Beltway (inner loop):

Two left lanes closed 9 p.m. to 5 a.m. Monday through Thursday from Livingston Road to I-295.

11. Route 1 (south):

Merge lane from the Beltway (outer loop) closed through Friday.

Transit Update

METRO: Metro is rushing the production of tens of thousands of SmarTrip cards and will keep selling them despite dwindling supplies.

Tip of the Week

According to Virginia Railway Express, a heat order, which restricts train speeds, is issued when temperatures rise quickly from night to day or when daytime temperatures are extreme. Such shifts in temperature can create a "sun kink," in which the track shifts laterally, resulting in a curve in the rails. Normally, the stress is contained by railroad spikes, tie plates, cross ties and ballast that resist the side-to-side movement that causes rails to buckle.

-- Diane Mattingly