Metro says motorcades contribute to poor Metrobus reliability and other problems.
The Kalmia Road Bridge rebuilding is complete.
Drivers need not rush to the DMV, unless their licenses are expiring.
Virginia's experience showed complexity of creating managed lanes.
Rush hour restrictions in effect, but some other regulations suspended.
Travel on Massachusetts Avenue near the Third Street Tunnel will be even more challenging.
The parade, a festival highlight, is scheduled for 10 a.m. to noon Saturday.
Provides new route to Anacostia Freeway for Capitol Hill/Navy Yard traffic.
Expect extra congestion Friday afternoon around South Capitol and M streets.
The traffic improvement of the year is the opening of the extra lane on the 11th Street Bridge.