As of 9 a.m. Friday, traffic was slow on southbound I-795 between Owings Mills Boulevard and the Baltimore Beltway due to an accident. A disabled vehicle was slowing traffic on northbound I-95 at the Fort McHenry Tunnel.
Accidents were also disrupting traffic at St. Paul and Preston streets and Monument and Curley streets, both in Baltimore.
Local mass transit systems are affected by road closures and other preparations for the Grand Prix race.
The Maryland Transit Administration's light rail line is operating with split service today due to the race. There is service as usual north of Camden Yards and service as usual south of Camden Yards, with a shuttle bus connecting the split lines.
In addition, several bus lines that usually run through downtown Baltimore, including the Orange and Purple routes of the Charm City Circulator, are operating with modified routes.
The MTA says MARC trains to and from Camden Station are expected to operate on their regular schedules Friday morning. The Camden Line northbound Train #852, which normally departs Washington, DC at 5:51 p.m., will leave from Washington at 2 p.m. on Friday due to the Labor Day weekend. It will make all stops on the Camden Line.