Traffic-controlled traffic signal system at Sasol site

BATON ROUGE - Louisiana's transportation department is trying traffic lights that respond to traffic demand along a southwest corridor where Sasol is building its $11 billion petrochemical complex.  The $1.2 million system in Westlake in Calcasieu Parish is aimed at helping to manage traffic from the construction site and other industrial sites in the area.  A news release says a half-dozen lights adjust timing based on traffic demand, using updated data and