Accessibility is the generalized definition on how ease of access. Accessibility is used to appraise transportation project such as capturing the quality of the existing state of the transportation system at diverse spatial levels. It also reflects on the effect of improvements to the existing travel modes. The overall goal of this study is to propose a measure of traffic accessibility in the Metropolitan area which can analyze various behavior of travelers in the city and present applications. In this study, to analyze the comparison of 2001 and 2002 based on network data in the Metropolitan area. we show how the trips affect household income, auto ownership, mode choice and trip purpose in the transport system. In general, both high household income and male were increased trip in the Metropolitan area. Also, In case the number of cars in a household is one and more, trip in the Busan/Ulsan Metropolitan area was the biggest(76.0%), but Gwangju was the smallest(56.1%).