The Georgia Department of Transportation has announced the latest round of lane and ramp closures and other traffic changes for Transform 285/400, its massive project to reconstruct the I-285/Ga. 400 interchange.

Schedules may change based on the work and the weather.

Ashford-Dunwoody Road ramp closures

Jan. 18-19, ramp to I-285 westbound closed, 9 p.m. to 5 a.m.

Ga. 400 ramp closures

Jan. 20-21, southbound ramp to I-285 westbound closed, 9 p.m. to 5 a.m.

Ga. 400 lane closures

Jan. 18-19, northbound and southbound between Glenridge Connector and Pitts Road, alternating one right lane and one left lane, 8 p.m. to 6 a.m.

Jan. 18-19, southbound between Pitts Road and Spalding Drive, two right lanes, 9 p.m. to 5 a.m.

Jan. 22-23, northbound between Johnson Ferry Road and I-285, one right lane, 8 p.m. to 6 a.m.

Jan. 23-25, northbound between Johnson Ferry Road and I-285, one left lane, 8 p.m. to 6 a.m.

Glenridge Drive closures

Jan. 18-19, northbound between Johnson Ferry Road and I-285 closed, 9 p.m. to 5 a.m.

Jan. 22-24, southbound at I-285 closed, 9 p.m. to 5 a.m.

Glenridge Drive lane closures

Jan. 19, 9 p.m. through Jan. 21, 5 a.m., northbound between Johnson Ferry Road and I-285, two right lanes.

I-285 ramp closures

Jan. 23-25, eastbound ramp to Ga. 400 northbound closed, 9 p.m. to 5 a.m.

I-285 lane closures

Jan. 18-19, eastbound and westbound between Lake Forrest Drive underpass and east of Ashford-Dunwoody Road, alternating one right lane and one left lane, 8 p.m. to 6 a.m.

Jan. 18-19, eastbound between Roswell Road and Peachtree-Dunwoody Road, one left lane, 9 p.m. to 9 a.m.

Jan. 18-19, westbound between Roswell Road and Peachtree-Dunwoody Road, two left lanes, 9 p.m. to 9 a.m.

Jan. 20-21, westbound between Ga. 400 and Glenridge Connector, one right lane, 8 p.m. to 6 a.m.

Jan. 21-25, eastbound between Roswell Road and Peachtree-Dunwoody Road, one left lane, 9 p.m. to 5 a.m.

Jan. 21-25, westbound between Roswell Road and Peachtree-Dunwoody Road, two left lanes, 9 p.m. to 5 a.m.

Mount Vernon Highway lane closures

Jan. 21-25, westbound at Barfield Road, one right-turn lane, 9 p.m. to 5 a.m.

Peachtree-Dunwoody Road lane closures

Jan. 21-25, northbound between Lake Hearn Drive and I-285, one right lane, 9 p.m. to 5 a.m.

Jan. 21-25, southbound between Lake Hearn Drive and I-285, one right lane, 8 p.m. to 6 a.m.

Other traffic changes

On Jan. 22 and 25, 1:30-2 p.m., the following roadways will have traffic pacing (police forcing other vehicles to slow or stop) on all lanes: I-285 eastbound between Roswell Road and Perimeter Center Parkway; I-285 westbound between Chamblee-Dunwoody Road and Perimeter Center Parkway; and Perimeter Center Parkway between Lake Hearn Drive and Hammond Drive.

On Jan. 21-25, 1:30 to 4:30 a.m. and 6 a.m. to 6 p.m., the North Springs MARTA Station ramp to Ga. 400 northbound will have flagging.

On Jan. 21-25, 6 a.m. to 4 p.m., the Abernathy Road ramp to Ga. 400 northbound will have flagging.

On Jan. 21-25, 7 a.m. to 6 p.m., Lake Forrest Drive will have flagging on all lanes between Allen Road and Northwood Drive.

The I-285 eastbound and westbound ramps to Ga. 400 will have periodic traffic pacing (police forcing other vehicles to slow or stop) between 7 a.m. and 7 p.m.

John Ruch is an Atlanta-based journalist. Previously, he was Managing Editor of Reporter Newspapers.