A nighttime pavement markings project has started on various routes in western Connecticut.  The state Department of Transportation is working on Route 7 north and southbound in Danbury and Brookfield as well as other locations in Litchfield County.  The project is expected to last through August 31st.  It's a roving operation which will require intermittent closures of lanes. Motorists are asked to use caution around these operations as vehicles will be moving slower than the posted speeds. The regular schedule for this project is 8pm to 5am, Sunday through Thursday evenings.