抄録
Sustainable cities are those where journey-to-work trip lengths (and hence their ecological footprints) are stabilizing or decreasing. The control of residential and employment locations are two appropriate policy instruments. As the journey-to-work trip length depends both on urban structure and travel behavior, a mathematical model based on the optimal commuting assignment problem is proposed to test different policy scenarios. This model is based on behavioral zonal travel preference functions. The preference functions are transformed into quadratic functions using data for the journey to work in the major four cities of Hokkaido, Japan. The optimization model is applied to estimate mean trip lengths from different hypothetical zonal distributions of residences and employment.
