The Georgia Department of Transportation recently pushed back the timeline for some major highway construction projects in metro Atlanta. But that doesn't mean the projects are on hold.

The agency is taking the next step for the biggest of those projects this week, launching a series of public meetings to solicit comments on proposed toll lanes for the top end of the Perimeter.

Those lanes would stretch from just south of Paces Ferry Road in Cobb County to Henderson Road in DeKalb County. The project also includes toll lanes on Ga. 400 up to the North Springs MARTA station.

Originally envisioned as one massive $5 billion project, GDOT now plans to break it into smaller pieces. First up would be the eastern section from Henderson Road to Ga. 400, including the new lanes on Ga. 400. That segment would be completed in 2029.

The western segment from Paces Ferry to Ga. 400 would be finished in 2032.

In addition, GDOT plans to break out several smaller construction projects that were originally part of the larger one: an I-285 westbound auxiliary lane extension from Roswell Road to Riverside Drive, the construction of I-285 westbound collector-distributor lanes from Chamblee Dunwoody Road to Ashford Dunwoody Road, and improvements to the I-285 interchange at Peachtree Industrial Boulevard.

GDOT will offer more details on all these projects and answer questions at public meetings that begin Tuesday. Here’s the schedule:

Tuesday: 11 a.m. to 2 p.m. at Chamblee First United Methodist Church, 4147 Chamblee Dunwoody Road, Chamblee.

Thursday: Noon to 2 p.m. and 4:30 to 7:30 p.m. at City Springs, 1 Galambos Way, Sandy Springs.

January 28: Noon to 2 p.m. and 4:30 to 7:30 p.m. at St. Luke’s Presbyterian Church, 1978 Mount Vernon Road, Dunwoody.

January 30: Noon to 2 p.m. and 4:30 to 7:30 p.m. at The Gallery at Cobb Galleria, 1 Galleria Parkway SE, Atlanta.

For more information on the projects, visit www.majormobilityga.com/projects/topend/.