The state Department of Transportation is sponsoring this study of Route 37 between the Exit 6 ramp in Danbury to 0.2 miles north of Route 39 in New Fairfield. Danbury, New Fairfield and the Western Connecticut Council of Governments are administering the study. Exactly what project would be suggested is still being worked out, as consultants seek public input and develop a plan and final report by March 2021, said Miller, a senior project manager with Fitzgerald and Halliday, Inc., the consultant group. Heavy traffic plagued the southern segment due to the state’s more than two-year project to widen the Exit 6 ramp and add turning lanes. That project wrapped up in spring 2017 and was followed by intersection improvements at Stacey and Barnum roads.