Tiyan Road Traffic to be Reduced to 1-Lane Movement for 2-Week Period. The Public is informed that traffice on East Sunset Blvd Avenue in Tiyan will be reduced to one lane movement begining Wednesday, January 30, 2013 until Tuesday February 12, 2013, between the hours of 9am and 4pm. Traffic movement will be directed by signage and flagmen during the hours stated above. Motorists are advised to be on the alert for posted signs, the flagmen and to drive cautiously on the heavily traveled Sunset Boulevard. see the map for affected road segment. The GIAA apologizes for this inconvenience and looks forward to the public’s full cooperation as it continues to improve the Airport’s infrastructure as part of laying a solid foundation vital the economic development and economic growth of our island.