Don't expect special carpool lanes to appear on Interstate 26 anytime soon.
While the Charleston portion of I-26 -- specifically the stretch between Montague Avenue and U.S. Highway 78 -- seemed the most-promising stretch for High Occupancy Vehicle lanes, a new study concluded that retrofitting the interstate for such lanes isn't feasible.
Twenty-two states have at least one major commuting corridor with special lanes available for cars with more than one passenger during rush hours, but not South Carolina.
The S.C. Department of Transportation looked at the pros and cons of creating such lanes at five locations, including I-26 in Charleston, I-385 in Greenville and three interstates in Columbia.
The Charleston stretch showed the most promise of all five sites, and an in-depth study looked at congestion, partly by analyzing cars' speed based on cell phone signals, said Richard Day of Stantec Consulting, which worked with the Transportation Department on the project.