[1] She was nominated to the Surface Transportation Board by President Barack Obama on September 25, 2013, and confirmed by the United States Senate on April 9, 2014.

She graduated magna cum laude from Kansas State University in 1976 with a Bachelor of Science degree in sociology.

In addition, she served as director of KDOT's Division of Planning and Development, as a special assistant to the Secretary of Transportation, and as a policy advisor to the Governor of Kansas.

During her tenure, Kansas passed T‑WORKS, an $8 billion, 10-year transportation program meant to create jobs throughout Kansas by funding highway preservation and capacity improvements, continuing the focus on safety improvements, and increasing investments in aviation, rail, and public transportation.

On September 25, 2013, President Barack Obama nominated Miller to fill the vacancy of Francis P. Mulvey on the Surface Transportation Board, an agency tasked with resolving railroad rate and service disputes.