Drugstore Bologna. Una lettura del rapporto tra la città e la droga

The main task of this research is to investigate the situation of drugs in the city of Bologna. A first discussion pertains the method to adopt studying an ethical question as drug actually is. In fact it is widely known that drugs problem involves many political and religious considerations which are misleading in a scientific point of view. After a methodological chapter supposed to show the purpose of this research, it is discussed a logical definition of drugs. There it is examined an aristotelian definition of drugs with semantic instruments from philosophy of the language to fulfil meaning of terms. The following chapter discusses personal stories of different people involved in drug in the city, who actually represent the main characters of drug subculture. Afterwards the official statistics concerning drug enforcement is discussed and compared with a specific police action which allows to criticize that data, and to make some hypothesis about drug quantities circulating in town. Next step is investigating drugs addicted in town, with a validation technique of data base queries. The result is a statistics of users in which there is evidence of main presence of foreigners and not resident Italians who use to practice drugs in this city. Demographic analysis of identified people shows that drug addiction is widely diffused among all range of age and mainly pertains males, with an increasing trend. Then is examined the geographic distribution of users residence and use places, showing that drugs abuse is spread among all classes of population, while drugs squares are located in some points of town which realise a kind of drug area with a concentration of dealers not organised together. With some detailed queries in police reports statistics is studied some specific subject on nowadays drug abuse, the phenomenon of multi-use, the relation between drug and crime, the relation between drug and mental disease, recording some evidence in such topics. Finally a survey on city media along last two years shows the interest about this topic and gives an idea of public opinion’s information about drugs. The study refers to the city of Bologna only, and pertains data recorded along last ten years by the local metropolitan police corp.

Automated Analysis Methods for the Assessment of Bicycle Infrastructure and Demand

A first phase of the research activity has been related to the study of the state of art of the infrastructures for cycling, bicycle use and methods for evaluation. In this part, the candidate has studied the "bicycle system" in countries with high bicycle use and in particular in the Netherlands. Has been carried out an evaluation of the questionnaires of the survey conducted within the European project BICY on mobility in general in 13 cities of the participating countries. The questionnaire was designed, tested and implemented, and was later validated by a test in Bologna. The results were corrected with information on demographic situation and compared with official data. The cycling infrastructure analysis was conducted on the basis of information from the OpenStreetMap database. The activity consisted in programming algorithms in Python that allow to extract data from the database infrastructure for a region, to sort and filter cycling infrastructure calculating some attributes, such as the length of the arcs paths. The results obtained were compared with official data where available. The structure of the thesis is as follows: 1. Introduction: description of the state of cycling in several advanced countries, description of methods of analysis and their importance to implement appropriate policies for cycling. Supply and demand of bicycle infrastructures. 2. Survey on mobility: it gives details of the investigation developed and the method of evaluation. The results obtained are presented and compared with official data. 3. Analysis cycling infrastructure based on information from the database of OpenStreetMap: describes the methods and algorithms developed during the PhD. The results obtained by the algorithms are compared with official data. 4. Discussion: The above results are discussed and compared. In particular the cycle demand is compared with the length of cycle networks within a city. 5. Conclusions