[DetroitMan]

The Downtown Connector is one of Atlanta's most congested stretches of highway. It combines interstates 75 and 85 as they cut through Midtown and Downtown.
Among the "innovative or unconventional ideas" that DOT will consider are additional lanes, new collector-distributor lanes, tunnels (under or parallel to the Connector), new location surface roadway parallel to the Connector, double-decked roadway, and theoretical policy changes such as tolling or implementing occupancy requirements on existing capacity.
Among the more "practical" and "financially realistic" ideas that DOT will look at are alternate routes (and improvements to alternate routes such as widening I-285 east and west), policy changes such as tolls, occupancy requirements, consideration of some type of commuter credits program, which could be used for encouraging the avoidance of trips in the peak periods and the shifting of trips to transit.
"Specifically, a High Occupancy Vehicle (HOV) interchange on the Connector at 15th Street will be evaluated to explore the possible effects on traffic on the Connector (the mainline and at existing Single Occupancy Vehicle (SOV) interchanges and on the surface streets leading to the existing interchange access points," DOT says.

http://www.bizjournals.com/atlanta/n...-downtown.html