Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2008.1197.1205ZargariShahriar A.Morteza Araghi7200887Here, we concentrate on the equilibrium modeling of Integrated Land Use and Transportation Demand Model (ILUTDM). We propose two combined sub models to involve in the ILUTDM: 1- residential activity location choices, trip distribution, mode choices and route choices, 2-employment location choices, trip distribution, mode choices and route choices. In the both combined sub models is assumed each individual minimize his or her travel cost and maximize his or her living or service utility. The joint choice of the residential or the employment location and transportation destination and mode of the two sub models is formulated as a nested multinomial logit model. We reformulate the combined sub models as an Equivalent Minimization Problem (EMP). The Evans algorithm may be applied to the EMP, in purpose of a realistic application within a reasonable time period. Finally, we develop an ILUTDM that contains the economic-base mechanism, the proposed combined sub models and the constraint procedure and their interactions.]]>Ben-Akiva, M. and S.R. Lerman,1985Berechman, J. and K.A. Small,1988Boyce, D. and Y.F. Zhang,1997Boyce, D. and H. Bar-Gera,2006Caliper Corporation,2002Chu, Y.L.,1999Evans, P.S.,1973Garin, R.A.,1966Goldner, W.,1971Lowry, I.S.,1964Mackett, R.L.,1991Maruyaman, T. and N. Harata,2005McFadden, D.,1974Patriksson, M.,1994Pietrantonio, H.,2001Putman, S.H.,1991Shen, P.,1997Wegener, M.,1994Zhao, Y.,2002