Daniel J. “Dan” Hanson Sr., former president and CEO of the American Road and Transportation Builders Association, Washington, D.C., died on Aug. 8 in that city at age 80. The cause of death was not disclosed. Hanson, who joined ARTBA in 1968 and retired in 1991, was one of its key advocates for federal surface transportation funding legislation. He previously served as deputy director of traffic engineering and operations in the city government and was also the first city traffic engineer in Peoria, Ill.
Charles Gwathmey, the noted modernist architect and co-founder and principal of Gwathmey Siegel & Associates LLC, New York City, died on Aug. 3 in Manhattan after a long battle with esophageal cancer. He was 71. Gwathmey, who found-ed the now 65-person firm in 1968 with Robert Siegel, was a prolific and innovative designer of residential, institutional and public structures, often overcoming major site and political constraints.