James M. Hunnicutt, 84, a former parking official in Chicago, Nashville and Montgomery County whose consulting firm designed garages for airports, hospitals, sporting arenas and other public and private entities, died Sept. 6 at Virginia Hospital Center in Arlington.

He died of a pulmonary embolism, said his daughter Susan Hunnicutt.

Early in his career, Mr. Hunnicutt rose to chief of Chicago’s bureau of street traffic and then general manager of the Nashville parking board. He was director of the Montgomery County parking bureau from 1964 to 1966, after which he formed Hunnicutt and Associates, a consulting firm based in Bethesda.

His business specialized in parking services for airports, including what is now Baltimore-Washington International Marshall Airport, Chicago O’Hare International Airport and Dallas Love Field Airport.

Mr. Hunnicutt’s business merged with Allan Davis Associates in 1995 and is now a division of Tighe and Bond, an engineering and environmental consulting firm. Mr. Hunnicutt retired in the late 1990s.

James Madison Hunnicutt Jr. was born in Roanoke and raised in Birmingham, Ala. After Navy service in the Pacific during World War II, he received a bachelor’s degree in civil engineering from Auburn University in 1950 and the equivalent of a master’s degree in traffic engineering in 1954 from Yale University’s Bureau of Highway Traffic.

In 1962, Mr. Hunnicutt was a founder of the International Municipal Parking Congress, a parking industry trade organization now known as the International Parking Institute. He was a past president of the group and was its “parking man of the year” in 1976.

Mr. Hunnicutt wrote for technical publications and testified before federal committees as an expert on parking legislation. He also lectured at the college level on traffic and parking engineering.

His interests included model-ship building, gourmet food and wine, and fine arts collecting.

His memberships included the Kenwood Golf and Country Club in Bethesda. He was a Bethesda resident until moving three years ago to the Jefferson retirement community in Arlington.

His marriages to Mary Virginia Hull and Barbara Kober ended in divorce. Survivors include two daughters from his first marriage, Susan Hunnicutt of Falls Church and Kristin Hunnicutt of Vienna; and two grandsons.

— Adam Bernstein