Officials reported no traffic incidents around 9:20 a.m., as Monday morning's rush hour wound down.
The Maryland Transit Administration showed trains and buses operating on time.
A long-term road closure to watch for includes roadwork on I-895 South at the I-97 spur, where southbound shoulders are closed, according to highway officials.
MARC's Penn and Brunswick lines are on an "S" schedule, with some making extra stops. There is no Camden Line service. Camden Line tickets can be used on the Penn Line.
With the National Weather Service calling for a combination of snow, freezing rain and ice Monday afternoon and evening in Washington and Allegany counties, roads in Western Maryland may be slick.
Plan ahead: There will be no MARC train service on Christmas Day.Copyright © 2015, CT Now