Columbia subject headings:
City planning--United States--Mathematical models.
Land use, Urban--United States--Mathematical models.
Urban transportation--United States--Mathematical models.
Harvard subject headings:
City planning--United States--Mathematical models.
Land use, Urban--United States--Mathematical models.
Urban transportation--United States--Mathematical models.
Princeton subject headings:
City planning--United States--Mathematical models.
Land use, Urban--United States--Mathematical models.
Urban transportation--United States--Mathematical models.