The purpose of this paper is to present a couple of useful measurements for the analysis and evaluation of land use in suburban area and to discuss some results of the research with an application of those measurements to Sohka-city located at the urban fringe of Tokyo metropolitan area. The paper is made up of the following five sections;<br> I Introduction<br> II Research design<br> III Results of research<br> IV Simulations<br> V Administrative implications of the results of research<br> The first section is a brief introduction of the problems with which we considered in this article. It is emphasized that various “environmental” problems occurred in local scale are often derived from the “too diversified and mutually inconsistent” land use in the administrative area.<br> In the second section, the research framework is presented;<br> 1) Definition of the categories in land use is given as Supplement.<br> 2) Given those categories, the administrative area of Sohka-city is devided into 490 unit areas each of which has the size of 1/16 as a basic cell in the Standard Mesh System (Japan Grid Reference System), and the land uses of 100 points in each unit area are identified. Basic data source for the identification is aerial photographs (scale=1: 8, 000). Topographical maps (scale=1: 25, 000) and the directions of public facilities are used as supplements.<br> 3) A couple of measurements for land use evaluation are defined. Among them the following two measurements should be mentioned.<br> ^*) Degree of diversification of land use<br> _??_<br> where P_i is percentage of i th land use category in the unit area.<br> ^**) Degree of negative interactions<br> _??_<br> where I_ij is the degree of influence of i th land use on j th land use which is defined as I_ij=P_iP_j. Sij is a element of the matrix of negative interaction which indicates the negative interaction between i th land use and j th land use.<br> The third section presents some results of the analysis and they are summarized as follows:<br> 1) Although major portion of the city area is devoted to urban use (43.1%), a large amount of land is still remained for rural and transitional uses which comprise 33.9% and 23.0% of total area respectively.<br> 2) The category which has the largest share is cultivated land (23.4%), the second is low story dwellings (17.1%) and the third is the land in development (9.6%).<br> 3) Relatively high share of transitional use and the land in development indicate that the city is now undergoing a series of socio-economic and physical changes which are generally considered to reflect rapid transformation from rural to urban land uses.<br> 4) One of the problems derived from such changes is the mutually inconsistent usages of land.<br> 5) Fig. 8 and Fig. 9 shows a series of maps each of which indicates the diversity of land uses, the degree of negative interaction and the final evaluation of land use for each unit area.<br> The fourth section is a summary of results of simulation and the administrative implication of those results are discussed in the final section.