Robinson is a long-time member of the board of directors of the Vietnam Veterans Memorial Fund, which helped to build and now maintains the
Vietnam Veterans Memorial. In 1981, when the memorial's Memorial Wall design was approved by the memorial jury, controversy erupted over the
Minimalist design. In January 1982, a new element—a realistic bronze sculpture by
Frederick Hart known as
The Three Soldiers—was added to the memorial. In October 1982, the Commission of Fine Arts approved the erection of a flagpole to be grouped with
The Three Soldiers. Controversy continued over both how close
The Three Soldiers should be to the Memorial Wall, and whether the flagpole should be erected. Robinson opposed putting the statues near the wall, saying this "would impose its imagery upon the visitor's experience and weaken the impact..." He was the commission's vice chairman from 2000 to 2002, and its chairman from 2002 to 2003. He also voiced strong views about the
Washington Metro's decision to place glass-and-steel canopies over all Metro station entrances. When Metro brought its design before the CFA, Robinson said, "Not only is it dull, it's offensive." Robinson led the commission in strongly criticizing the canopies. "Metro cannot build what they have shown us," he said in July 2000. "It isn't going to happen." The Park Service withdrew the plans. In December 1995, Robinson was named chairman of a 14-member ad hoc panel established by President
Bill Clinton to propose a redesign of the closed segment of
Pennsylvania Avenue NW between the White House and Lafayette Square. The panel proposed a "town square" idea that would remove the pavement and plant a field of grass, as well as add retail, food service, and educational kiosks to make the area a more attractive gathering place. Unsightly security barriers would be replaced with more decorative planters, The panel's design plan extended these decorative motifs several blocks in every direction from the White House. (As of 2012, no long-term plan has been proposed.) ==Other roles==