The Crossroads Survey, an adaptation of the macrostructural accounting techniques, was employed for purposes of testing the community development theory that services are added to communities in the same sequence. Dividing services and amenities into 2 categories (commercial and public/professional), the Crossroads Survey was conducted in Clinton County and the Tug Hill Region (a 9 town-4 county area) of New York State. Using telephone books and directories as secondary resources, surveyors conducted a "windshield survey" of 81 Clinton County and 21 Tug Hill crossroads, wherein those services visible from a car were listed. Data analysis involved ordering commercial and public/professional services via the Guttman scale, a cumulative measure of complexity, which revealed the relationship between the appearance of 1 service and that of another. Comparative analysis of the 2 areas indicated that use of the Crossroads Survey and the Guttman scale could be most valuable in the assessment of services regardless of differences in political boundaries or population factors, since a comparison of the 2 commercial scales revealed a general patterning and a rank order correlation of .77, and comparison of the 2 public/professional services scales showed a rank order correlation of .88. (JC)