The Study of Perception and Project of the Territory Using Brain Storming

Brainstorming (based on conceptual mapping tools) is a method for identifying ideas, oriented to workgroups. In brief, it is the conceptual analysis of the discussion inside the group. In this way it is possible to enhance creative energies and develop new ideas. We propose two applications in the field of urban planning. The first is the development of a conceptual model of a given territory. By analysing the discussion among people involved in the elaboration of a report concerning social, economical, territorial aspects of Bergamo and Lecco (two Italian metropolitan areas), we have tried to find a link among various indicators and elements identifying the peculiar features of the territorial systems that we study. The second is, instead, the research of the best solution for opening a factory in a given territory. In this case study the discussion group is made by the actors intervening in the decision process, the administrators, the contractors, the urban planners, etc. The result will be compared with one obtained with traditional analysis.

Spatial analysis, decision support systems (DSS) and land use design: the case-study of antique viability system in San Martino valley (Lombardy, Italy)

This paper concerns the development of a Decision Support System (DSS), which is a system able to support temporal and spatial choices about land use design, in order to project and manage the antique viability system in San Martino valley (located in Lombardy, Italy) The main purpose is providing to a project manager necessary information to help him to understand problems (in particular concerning the spatial system of viability), therefore assists him to analyze the question from different points of view. This process needs a particular informative architecture, based on a complex and relational structured system (DSS) able to produce response for the whole decision process. The DSS is interfaced with a GIS in order to manage cartography and alphanumeric files with geo-referenced data. It works on information which are supposed to be indispensable for the planners of the San Martino valley.

The Cladistic Technique for Territorial Studies

The cladistic is an technique born in the field of biology. Starting from the physics characteristics of some elements, the cladistic method try to find the hierarchical links between them in the bases of their similarity and of the research of “evidences” of relationship. The goal of this paper is to verify the potentialities of this method in the studies of the territory, in order to find correlation among different spatial areas. Considering social, economic, environmental indicators that characterise the areas of a given territory, we analyse the links between different areas, organising these links according to a hierarchical tree. The result is then compared with ones obtained using more traditional methods as multicriterial analysis, statistics and clustering.

Land Use Dynamics: a Cellular Automata

Usually applications of urban growth cellular automata are related to an only one town, with transition rules and constraints a priori defined. This seems to be a severe limits in applications. The paper presented is born to follow a different kind of approach, so to have rules and constraints directly from observed past data. We consider ten European towns and for each one we have data for time series approx. 40 years long. We deduce rules and constraints directly from the data set, solving an inverse problem (in which we have input and output measures and we have to determine a system model).The study aims to define in detail the stochastic or deterministic character of transition rules (in the stochastic case evaluating transition probability). At last the rules are applied to towns maps (by means of ad hoc cellular automaton). With this cellular automaton we try to simulate past dynamics (for a validation of the model) and also to forecast the spatial development of the towns by means of scenarios (based on the past histories of the cities).

Italian urban systems: a delimitation

There is a missing concept in the Italian planning tradition: the delimitation of Urban Systems. The laws of the European countries all provide some kind of delimitation for the 'Built Areas', in Italy there are no official boundaries for what it is built. This work tries to fill the gap by applying the work of the French INSEE to the Italian case. This choice is meant for harmonizing the studies on towns or urban entities that all over Europe are split into several research groups. The main aim of the work is the creation of the 'Map of Urban Systems in Italy', done by studying the interactions between administrative boundaries and built areas, and by analyzing the workflows between urban entities. The French methodology turns out to be interesting for its two-level strategy: 1) the physical town - we test if the towns are urban 'continuum' 2) the social and economic town - we test the interaction between core and periphery The output of the work is not only the 'Map of Urban Systems', but also an analysis of the peculiarities of the Italian case (that can surely be used by planners of all administrative levels for their studies).

Identification of cellular automata: theoretical remarks

Land use evolution during forty years in a large set of European cities is analysed by means of a cellular automaton. In one hand (the operational level), the use of this modelling tool allows: a: to study the transition rules in land use and the proximity effects on these rules; b: to compare the different case -studies, otherwise very difficult to be confronted; c: to define scenarios of evolution, on the bases of the past trends. On the other hand (methodological level), availability of a large data-base (significant time series for a set of comparable cases) allows: a: to manage, in a scientific way, the problem of calibration and validation of a cellular automaton (a crucial problem - we have to blame - usually neglected in territorial applications); b: to verify, empirically, potentialities and limits of cellular automata, compared to other models for the analysis of spatial dynamics.

The perception of the territory naturalness an application in the bergamo area

It is very discussed about the sustainability of urban areas. One of the requests of urban sustainability consists in the capability of the city to preserve around itself a good level of naturalness: A sustainable economy reflects an image of its territory that must represent a landscape of agreeable towns, of intact agricultural mosaics and of a large natural areas patrimony. Ours research, starting from the proposal expressed from E. Koomen, J Groen, J Borsboom and H Scholten with the work “Modelling the fragmentation of open space. A framework for assessing the impact of land use change on open space” presented at the ERSA Congress in 2002, intends to find the modality with which the naturalness influences the surrounding areas, the zones where nature and population pressure are not in antithesis and the natural areas that risks to be lost. The goal will be reached applying the concept of “field”. The base idea is that the areas with larger “naturalness” constitute a sort of positive virus that influences the surrounding zones. The GIS-oriented model presupposes the discrete division of the territory and the use of a simple field algorithm applied to an naturalness indicator opportunely studied. The application, for the validation of the model, has been implemented on the Bergamo’s province; choosing a territorial scale that allows to do observations and preliminary evaluations at the level of urban planning to locate large infrastructures.

Ontology of multi-agents processes of spatial decision

In the paper of Cavezzali, Girotti and Rabino presented at ERSA 2003 conference, features of multi-agent models and their potentiality for the study of territorial phenomena are discussed. Starting from this study, the present paper digs deeper mechanisms of multi-agent systems working, describing their ontology in a more complete and articulated way as possible, and investigating: the properties of the actors, the mechanisms of interaction among actors and between actors and environment. About the environment, particular attention has been paid to the consideration about the various modalities of treatment of territory (from pure physical support to active reactive/cognitive agent in relationship with the other agents). For these modalities, finally, two typical case-studies of multi-agent model are shown: simulation of pedestrian paths choice, the software “Turisti”, and a competitive dynamic of service centres location, “Wilson”.

Point pattern analysis: an application to the loyalty networks of chain-stores

At the 41th congress of ERSA., Staufer-Steinnocher (2001) proved that kernel density estimation, a technique of spatial analysis belonging to the point pattern methods, can be usefully applied to geomarketing. Following this point of view, the aim of this paper is to show that other point pattern techniques (center-grahic statistics, global and local autocorrelation indexes, clustering methods, 'nearest neighbour index', 'Ripley's K statistic', etc.) are able to suggest important considerations in marketing researches, making explicit the "geographical knowledge" embedded in available informations. Namely this argument is demonstrated, analysing spatial distributions of big stores chained in a promotional network, finalised to improve fidelity in the consumers.

Regional science at the turn of the century: Reflections on its epistemological status

As a contribution to the current debate on the state-of-the art of regional science, this paper presents some reflections on the epistemological and methodological status of the discipline as we approach the turn of the century. First of all, and contrary to the widely held view that quantitative approach is seriously 'in crisis', it is argued that the discipline is going through a period of intensive, but constructive, theoretical development. To support this assertion, the authors suggest that it is important to abandon a hidden source of prejudice: the tendency to evaluate the present situation in terms of an outdated conception of the discipline. Modern quantitative geography and regional science is a vast and varied scientific field, which has radically evolved under the pressure of changing theoretical paradigms and technological advance. It has little to do with the old regional science of the 60s. The first part of the paper reviews this evolution: 1. from the original goal of applying to geography the tools of classical science, such as statistics, optimization and modelling (whose use was made possible in the 60s by the availability of the new "number crunching" computers) 2. to the present informatization (and hence quantification) of all branches of regional science, based on PCs and the Net, used as tools not just for computation, but for data handling, representation, visualization and communication). An attempt is made to fit all of these efforts, those with a long tradition (modelling, O.R., gaming simulation, statistics etc.), as well as the more recent approaches (expert systems, G.I.S., hypermedia, virtual reality, A.I.) into a single framework, stressing the specific aims of each and identifying existing - or potential - interconnections. In the second part of the paper we focus on the new frontiers of regional science and quantitative geography with particular reference to the processes of analysis and planning. It is suggested that: 1. the goal of analysis is shifting from simulation (the explicitation in terms of the "scientific method") of the mental processes involved in problem-solving, to the replication of the human ability to "formulate problems". This implies that creativity, and related aspects such as learning, and expertise, will come increasingly within the scope of research in regional science 2. progress in planning will be limited unless we will be able to go beyond the misleading counterposition between the formalised "rational" approach and the intuitive design approach. A fruitful way to cope with planning in a complex world is to integrate the two strategies and, in doing so, to tap into wider sources of knowledge. In other words, it is important to learn the 'art' of using the tools of geographical science.