GA400 Shoulder Lanes
In an effort to improve mobility on one of the most crowded segments of GA 400, Georgia DOT now allows southbound motorists to drive on the outside (far right) shoulder lane during morning commute hours at two locations:
- Between Holcomb Bridge Road and Northridge Road Exits
- Between Northridge and the North Springs MARTA Station Exits
New Commute Data Shows Shoulder Lane Usage Improves Morning Commute
Motorists are experiencing time savings over the average travel times prior to the opening of the shoulder lane. Available data on travel times from Windward Parkway to Northridge Road along GA 400 South shows time savings ranging from five minutes up to almost 15 minutes depending on the time of morning. The Department is continuing to track available data and analyze it to ensure there is consistency in the numbers.
View Travel Time Charts for Windward Pkwy to Northridge Rd 5/30/12
What Should Motorists Expect?
Drivers entering GA 400 SB from 6:30 to 9:30 a.m., weekdays, will have two dedicated entrance ramp lanes from Holcomb Bridge. At Northridge, there will be one entrance ramp lane from which drivers will merge as usual into the right thru lane and then move to utilize the right shoulder lane if they choose.
This access to the shoulder lanes will be restricted to southbound traffic only in two areas:
- Between the Holcomb Bridge Road entrance ramp to GA 400 and the Northridge Road exit ramp.
- Between the Northridge entrance ramp to GA 400 and the North Springs MARTA Station exit ramp.
Hours of Operation
Motorists may use the lanes only between the hours of 6:30 a.m. to 9:30 a.m., Mondays through Fridays.
During these hours and in these segments only, southbound motorists will be allowed to drive in the outside (right) shoulder lane. Drivers will be guided through the new configuration throughout the corridor by signage and pavement markings.
Information for Commuters
Georgia DOT is Working to Improve Your Commute
Several states utilize shoulder lanes to address traffic congestion, and Georgia DOT is adding this approach as “one tool in the toolkit” of its comprehensive strategies to use existing assets to improve mobility in the metro Atlanta region. During the coming months, the Department will determine if traffic flow is sufficiently improved to continue and perhaps expand their use in Georgia.
Pending that review, Georgia DOT may implement shoulder lane access on northbound GA 400 between the North Springs MARTA Station entrance/Northridge Road exit and Northridge Road entrance/Holcomb Bridge Road exit ramps during evening commute hours.