Residents can have their say during the next month on state plans for construction projects intended to improve traffic on Ga. 400.

The State Road and Tollway Authority scheduled a series of public meetings to collect public comments on $67 million in projects proposed for Ga. 400. The projects are scheduled to be constructed from 2011 through 2014, the authority said.

Public meetings are planned Dec. 20 at Second Ponce de Leon Baptist Church, 2715 Peachtree Road N.E.; Jan. 5 at the North Fulton Chamber of Commerce, 11605 Haynes Bridge Road, Alpharetta; and Jan. 6 at the Crowne Plaza Ravinia, 4355 Ashford-Dunwoody Road, Dunwoody.

The meetings are scheduled from 4 to 7 p.m.

The period for recording comments closes Jan. 7. Comments may be written and mailed to Ga. 400 Improvement Projects, P.O. Box 7278, Atlanta, Ga., 30347.

The authority, in a press release, said the proposed projects include new ramps connecting Ga. 400 and I-85; preliminary engineering on managed lanes between I-285 and McFarland Road; continuing express bus service from Forsyth County to the North Springs MARTA rail station near Perimeter Center; rebuilding a ramp from westbound Abernathy Road to northbound Ga. 400; increasing capacity and making operational improvements Northridge Road at Dunwoody Place, Roberts Drive and Somerset Court and Roberts Drive and Dunwoody Place, and adding a traffic roundabout at Somerset Court to the east; cleaning and maintenance along the Ga. 400 corridor that includes street sweeping, graffiti covering and replacing damaged guard rails.

A complete list of the projects, with full descriptions of the work proposed, can be found at www.georgiatolls.com.