CHICAGO (AP) - The city of Chicago is urging people to use public transportation and prepare for road closures during this weekend's Chicago marathon.
More than 40,000 runners will participate in Sunday's 26.2-mile (42.2-kilometer) race.
The race starts and ends in Grant Park, where some area streets already have been closed. More closures will occur Friday and continue through the weekend. Parking restrictions also will be in place along the course.
The Chicago Transit Authority and Metra have added service throughout the weekend.
On Sunday, Metra is operating extra early morning inbound trains and afternoon outbound trains along five of its lines for suburban Chicago participants and spectators on Sunday.
CTA has added bus and rail services to the race expo at McCormick Place on Friday and Saturday and for Sunday's marathon.