Pedestrians and drivers are urged to take note that the direction of vehicular travel on High Street between Federal and Purchase Streets will be reversed beginning Saturday morning, September 30, 2006 to improve local traffic circulation.High Street will also be extended across Purchase Street to Atlantic Avenue and will become one-way from Summer Street to Federal Street. In preparation for the reversal and extension work, High Street will be closed from 3 AM to 9 AM on Saturday, September 30, 2006 and parking will be restricted from 10 PM Friday, September 29, 2006 through Saturday, September 30, 2006 at 10 PM. Signs, electronic message boards and police officers will inform motorists of the change in direction on High Street. This final configuration of High Street with traffic heading east towards the Rowes Wharf area on Atlantic Avenue in the path of the former elevated Central Artery allows the City of Boston to create a more grid-like traffic pattern in the Financial District. In addition, Oliver Street will also be reopened from Purchase Street to High Street.