Previous analysis showed the need for one lane of additional capacity on SR 400 in the segment north of McFarland Parkway. This need has been addressed by the recently constructed third general purpose lane in both northbound and southbound directions as part of the Forsyth County SR 400 capacity adding project. The third general purpose lane begins immediately north of McFarland Parkway and extends north of SR 20. Traffic patterns show that there is a congestion drop off at McFarland Parkway and the recently constructed third general purpose lane has further relieved traffic volumes.

While MARTA service does not extend into Forsyth County, the express lanes would be used by Xpress buses with origins and destinations in Forsyth County.