It is GDOT’s general practice not to consider general purpose interchanges for arterial access ramps to express lanes. General purpose and express lanes interchanges remain as separate facilities to avoid potential operational impacts of combining both traffic types into a single location. As a result, GDOT is not considering Windward Parkway, Old Milton Parkway, or Haynes Bridge Road, among others, as potential access points.
As part of this project, potential traffic impacts related to this proposed express lane access point will be further studied within the confines of GDOT’s Intersection Control Evaluation (ICE) policy. Extensive coordination is being conducted with local government staff as well as elected officials of the City of Alpharetta to determine the most feasible and efficient express lanes access solution within the City of Alpharetta.
We are continuing to refine weaving locations to meet federal and state design criteria and a safety analysis will be completed before final design.
Since the SR 400 Express Lanes project was announced in early 2016 as part of the larger Major Mobility Investment Program (MMIP), GDOT has coordinated with stakeholders and sought to inform the public about the project. GDOT has held more than 150 presentations and meetings to educate and seek input from stakeholders and local citizens in the past two years. These include concept coordination meetings with elected officials and local government staff as well as numerous public presentations to city councils, homeowners associations (HOAs), and other civic organizations. Information on the project has been shared by both traditional and social media outlets. GDOT has also undertaken activities to distribute and gather more information about the project. Such include:
· sending early coordination letters to federal, state, and local agencies;
· solicited feedback from organizations along the corridor;
· requested civic and religious organizations along the corridor share information with their contacts and distribution lists about the project and public meetings;
· posted information in five public libraries along the corridor; and
· published legal ads and posted road signs advertising the public meetings.
In addition, GDOT hosted five (5) Public Information Open Houses (PIOHs) along the corridor in accordance with the National Environmental Policy Act (NEPA); posted meeting materials online at both the project website (); and solicited comments via the project website, email, letter, and court reporter. The PIOHs attracted more than 1,200 attendees and generated over 500 public comments, in addition to the project team receiving numerous phone calls, letters, and emails. As the project is still in the concept design/environmental review phase, GDOT will continue to coordinate with local governments on the project’s preliminary engineering. Additional comments may be submitted by emailing .) and GDOT public outreach website (
The project website will continue to be updated during the preliminary engineering process and a more refined project concept will be presented at the project’s Public Hearing Open Houses (PHOHs) that are proposed to be held in 2020. The design-build contractor, referred to the as the Developer, would be responsible for completing the final design for the project.
Note: Schedule updated May 2019.
The project is needed to provide reliable travel times for drivers and transit users and to improve connectivity between regional destinations through priced, express lanes that are proposed to integrate with a proposed metro Atlanta express lanes network.
Georgia Express Lanes are optional priced lanes that complement the general purpose lanes along the interstates in some of the most congested corridors around metro Atlanta. These lanes provide a choice for drivers to bypass congestion when desired, offer a clear path for transit operators, and add an alternative to the general purpose lanes that exist today. The result will be a network of express lanes that provide more reliable and predictable trip times. All Georgia Express Lanes rely on a dynamically-priced toll in order to provide reliable travel times especially during peak congestion.