"States from California to Virginia see the lanes, often set up in partnership with private companies, as a crucial way of generating new revenue in an era of constrained budgets—even though some haven't generated the dollars they were projected to bring in. Road planners like the idea of adjusting prices to manage traffic, and they think drivers prefer the option of paying to get there faster over traditional tolls." writes Cameron McWhirter.
With HOT lanes or "Express Lanes", as transportation planners, including the Georgia Department of Transportation (GDOT) like to call them because of the speed advantage paying users enjoy, the adjacent lanes remain free or "unmanaged" and can experience congestion, especially during peak hours.
A good comparison with the revenue brought in from traditional tolls, where all lanes are tolled, will soon be available thanks to Republican Gov. Nathan Deal's promise to voters to eliminate tolls on Georgia 400. The toll plaza was shut down on November 22.
As part of an $840 million project called the Northwest Corridor [GDOT press release, PDF], "the most expensive in the state's history," HOT lanes will be installed "along 30 miles of interstates 75 and 575 in Cobb and Cherokee counties", according to the Atlanta Business Chronicle. Now Georgia "hopes some of the revenue will replace the roughly $20 million a year it used to generate from Georgia 400," writes McWhirter.
This will not be Georgia's first foray into HOT lanes. On October 10, 2011, we posted "Atlanta's New I-85 Express Lanes Off To Rough Start." Virginia appears to have experienced the same slow start with the 495 Express Lanes in northern Virginia in February, also described in October.