CASE STUDIES IN THE SERVICE SECTOR
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sion's rationale, e.g. criteria, files presented plus technical estimates, and also to develop a method t h a t was sufficiently simple and convivial that people could appropriate it. Given the motives and context, the Multipol method was chosen.
Macrocriteria and Corresponding Sub-criteria Macrocriterion 0. Basic data, ground accessibility Subcriteria: - s o i l and subsoil; - real estate and property matters. Subcriteria for ground access: - current distance by road from center of Paris; - access time for the A 86 highway; - the combining indicator for the commission related to the proximity of the sites; - in terms of the A86 and the existing railroad network. Macrocriterion 1. Quality of Air Space Subcriteria: - meteorological conditions, geographical characteristics and obstacles; -overall reorganization of the structure; -available airspace; -airline routes; -approach procedures; - combined evaluation indicator for the commission. Macrocriterion 2. Environmental Aspects Subcriteria: - residents affected (a 40 to 8 km zone); - residential areas affected; - noise level per residential area; - natural and manmade heritage sites; - commission's combined evaluation indicator - environmental effects. Macrocriterion 3. Clientele and Site Region Subcriteria: - road access for the He de France region within a radius of 30, 45, 60, or 75 minutes (1995 or 2015); - road access for the greater Parisian region outside Me de France within a radius of 30, 45, 60, or 75 minutes (1995 or 2015); - road access for those outside the greater Parisian region within a radiusof30,45, 60, or75feet minutes (1995or2015); - population 2015 greater Parisian area at 60 and 75 minutes; - ratio between the potential market in term of the 60-minute zone around the greater Parisian area; - commission's combined evaluation indicator. Subcriteria for the region selected: - employment within a radius of 30 to 45 minutes in 1995; - commission's combined evaluation indicator; -accounting issues, employment, urbanization, activities.