Community Board Two and the Empire State Development Corporation sent out a notice, and the above map, about traffic changes now in effect around the Atlantic Yards construction site. Those changes include the following: Pacific Street (between Sixth and Carlton avenues) will be converted from two-way to a one-way heading west. Vehicles will be able to access this block from both northbound and southbound Carlton Avenue. The north sidewalk on Pacific Street (between Sixth and Carlton avenues only) will be closed to pedestrian traffic. Sidewalks on the south side of this block will remain open. Finally, parking along the north side of Pacific Street (between Sixth and Carlton avenues only) will be prohibited. These changes will be in place for eight months.