The thousands of people expected to travel by air this holiday weekend should allow themselves extra time if they’re heading to Detroit Metro Airport.

Construction projects that began this summer on Rogell and Lucas drives are nearly complete, but drivers will still see lane closures, orange barrels and traffic shifts.

There are lane closures and shifts on both northbound and southbound Rogell Drive, which leads drivers from I-94 through the northern section of the airport campus. Two northbound lanes and three southbound lanes are open.

Workers are also in the midst of creating turnarounds in the median on Rogell.

All lanes of Lucas Drive are expected to be open, but there may be intermittent traffic shifts throughout the weekend. There will be no traffic shifts on Wednesday and Sunday, two notoriously busy travel days.

“If customers head out to the airport for Thanksgiving holiday travel, we certainly want them to continue to allow themselves a little extra time so they can navigate through the construction zones,” said Erica Donerson, spokeswoman for the Wayne County Airport Authority.