Die vorliegende Arbeit prüft unterschiedliche Einflussfaktoren und deren Auswirkung auf die Merkmale informeller Siedlungen. Hypothese ist, dass die Morphologie und weitere physischen Merkmale informeller Siedlungen trotz der Wirksamkeit lokaler und kulturspezifischer Rahmenbedingungen auf die Wirkung bestimmbarer Einflussfaktoren zurückgeführt werden können, die entsprechend erkennbarer und prognostizierbarer Gesetzmäßigkeiten wirken. Es werden die Gesetzmäßigkeiten geprüft, die mit informeller Stadtbildung in Verbindung stehen und sich in Morphologie und weiteren physischen Merkmalen von informellen Siedlungen äußern. Dabei werden konstante und variable Faktoren unterschieden, die bei der Ausbildung informeller Stadtstrukturen wirken. Die meisten Faktoren stellen sich als variabel heraus. Mit dem Verständnis über deren Bedeutung und Zusammenhänge kann daher die informelle Siedlungsbildung beeinflusst werden und Planungsempfehlungen können für schnell und informell wachsende Städte formuliert werden. Die Morphologie und bautypischen Merkmale informeller Siedlungen sind prognostizierbar und die Folgen bestimmter Entscheidungen einschätzbar. Die Beeinflussung der Einflussfaktoren ist insbesondere auf der Ebene von Politik und Gesetzgebung möglich. Fast alle Handlungs- und Planungsentscheidungen müssen das Bodenrechtssystem und die vorliegenden Verhältnisse des Bodeneigentums beachten. Als Fallstudien dienen fünf Städte in Afrika, die von einer Bandbreite an Rahmenbedingungen beeinflusst werden und die aktuell einem besonders rasanten, doch jungen Verstädterungsprozess ausgesetzt sind. In Afrika finden sich unterscheidbare Rechtssysteme, die zum Teil aus der Kolonialgeschichte hervorgehen. Die Wahl der Beispiele wurde während der Bearbeitung und Vertiefung des Themas getroffen. Vor allem fußt die Analyse auf Originalmaterial, das die Autorin durch eigene Aufenthalte zusammengetragen und erhoben hat. Spezielle Planunterlagen, Planungs- und Gesetzesinformationen waren im Allgemeinen nicht anders aufzufinden. Es gibt auch nur wenige vorangegangene, einzelne Analysen informeller Siedlungen aus architektonischer oder planerischer Sicht. Wie keine der wenigen vorhandenen Analysen beansprucht diese Arbeit nun das Erarbeiten der Zusammenhänge von Rahmenbedingungen und Siedlungscharakteristik unter Beleuchtung der Bandbreite informeller Siedlungsformen. Von Bedeutung ist daher die intensive Arbeit mit dem Kartenmaterial auf Siedlungs- und Bebauungsebene, dessen Betrachtung vor dem Hintergrund landesspezifischer Informationen und die Erkenntnisgewinnung aus dem Vergleich der ausgewählten Beispiele stattfinden.:1 Einführung 12 Anlass und Ziel der Arbeit 12 Methodik und Aufbau der Arbeit 14 2 Informelle Stadtentwicklung 16 Überblick, Ausmaß und Entwicklungsfaktoren 16 Formen informeller Stadtbildung 19 Informalität und Bodeneigentum 19 Informelle Stadtbildungsprozesse 21 Informalität und Reglementierung 23 3 Analyse und Vergleich informeller Stadtentwicklung anhand ausgewählter Beispiele 24 Begriffe 27 Kairo, Ägypten 29 Rahmenbedingungen 33 Faktenblatt Rahmenbedingungen Kairo 40 Siedlungs- und Bebauungsanalyse 42 Faktenblatt Siedlung und Bebauung Boulaq el Dakrour 49 Faktenblatt Siedlung und Bebauung Manshiet Nasser 55 Addis Abeba, Äthiopien 61 Rahmenbedingungen 66 Faktenblatt Rahmenbedingungen Addis Abeba 75 Siedlungs- und Bebauungsanalyse 77 Faktenblatt Siedlung und Bebauung Mari Luke 83 Faktenblatt Siedlung und Bebauung Demamit 89 Ouagadougou, Burkina Faso 95 Rahmenbedingungen 98 Faktenblatt Rahmenbedingungen Ouagadougou 105 Siedlungs- und Bebauungsanalyse 107 Faktenblatt Siedlung und Bebauung Nabas Nogo 111 Kigali, Ruanda 117 Rahmenbedingungen 121 Faktenblatt Rahmenbedingungen Kigali 131 Siedlungs- und Bebauungsanalyse 133 Faktenblatt Siedlung und Bebauung Muhima 137 Faktenblatt Siedlung und Bebauung Kimisange 141 Nairobi, Kenia 147 Rahmenbedingungen 151 Faktenblatt Rahmenbedingungen Nairobi 155 Siedlungs- und Bebauungsanalyse 157 Faktenblatt Siedlung und Bebauung Zimmerman 161 Faktenblatt Siedlung und Bebauung Kibera Kibera 165 4 Gegenüberstellung der Analyseergebnisse 169 Rahmenbedingungen 169 Siedlungsstrukturelle Aspekte 180 Baustrukturelle Aspekte 192 5 Auswertung und Erkenntnisse 197 Einflussfaktoren auf die informelle Siedlungsbildung 197 Steuerbarkeit der Einflussfaktoren 216 Morphologie und Funktionalität informeller Siedlungen unter Betrachtung der Einflussfaktoren 217 Zusammenfassung 219 6 Ausblick 220 L Literaturverzeichnis 225 / This work examines the factors influencing the characteristics of informal settlements. Hypothetically, the morphology and other physical characteristics of informal settlements can be attributed to the effect determinable factors, which function with predictable regularities, despite a locally and culturally specific framework. Examined are those regularities, which are related to the formation of informal urban growth, and which are expressed in the morphology and further physical characteristics of informal settlements. Constant and variable factors are differentiated when examining their influence on informal urban morphologies. It is discovered that most factors can be influenced on the level of politics and legislation and therefore, the formation and the physical characteristics of informal settlements can be steered. Planning recommendations for fast, informally growing cities can be formulated and the consequences of planning and policy decisions can be predicted equally. Nearly all action and planning decisions must consider the local juridical system and specific conditions of land ownership. The research clearly shows that the physical form of informal urban development, i.e. morphology and townscape, is directly connected to the given land ownership system in a country in general, and to the land rights specifically for settled land. In other words, current as well as former land ownership conditions in a country influence the physical characteristics of the informal settlements. In principle, the land law determines type, extent and functioning of plot allocation and transfer processes; and indirectly, the type and degree of nonconformity to this legal defines the type, extent and functioning of the informal land market. The research is based on case studies in five African cities with varying legal, administrative, historic and cultural frameworks, and which are currently exposed to a rapid process of urbanization, which has started only recently. In Africa, there are distinguishable juridical systems, which partially result from colonial history. Above all, the analysis is based on original material, which was gathered by the author during field research. There are only few analyses of informal settlements, which take an architectural or planning perspective, and those are limited to individual settlements. This work now stresses the interrelation of different aspects in the framework with physical settlement characteristics, while analyzing the respective range of informal settlement forms for each case example.:1 Einführung 12 Anlass und Ziel der Arbeit 12 Methodik und Aufbau der Arbeit 14 2 Informelle Stadtentwicklung 16 Überblick, Ausmaß und Entwicklungsfaktoren 16 Formen informeller Stadtbildung 19 Informalität und Bodeneigentum 19 Informelle Stadtbildungsprozesse 21 Informalität und Reglementierung 23 3 Analyse und Vergleich informeller Stadtentwicklung anhand ausgewählter Beispiele 24 Begriffe 27 Kairo, Ägypten 29 Rahmenbedingungen 33 Faktenblatt Rahmenbedingungen Kairo 40 Siedlungs- und Bebauungsanalyse 42 Faktenblatt Siedlung und Bebauung Boulaq el Dakrour 49 Faktenblatt Siedlung und Bebauung Manshiet Nasser 55 Addis Abeba, Äthiopien 61 Rahmenbedingungen 66 Faktenblatt Rahmenbedingungen Addis Abeba 75 Siedlungs- und Bebauungsanalyse 77 Faktenblatt Siedlung und Bebauung Mari Luke 83 Faktenblatt Siedlung und Bebauung Demamit 89 Ouagadougou, Burkina Faso 95 Rahmenbedingungen 98 Faktenblatt Rahmenbedingungen Ouagadougou 105 Siedlungs- und Bebauungsanalyse 107 Faktenblatt Siedlung und Bebauung Nabas Nogo 111 Kigali, Ruanda 117 Rahmenbedingungen 121 Faktenblatt Rahmenbedingungen Kigali 131 Siedlungs- und Bebauungsanalyse 133 Faktenblatt Siedlung und Bebauung Muhima 137 Faktenblatt Siedlung und Bebauung Kimisange 141 Nairobi, Kenia 147 Rahmenbedingungen 151 Faktenblatt Rahmenbedingungen Nairobi 155 Siedlungs- und Bebauungsanalyse 157 Faktenblatt Siedlung und Bebauung Zimmerman 161 Faktenblatt Siedlung und Bebauung Kibera Kibera 165 4 Gegenüberstellung der Analyseergebnisse 169 Rahmenbedingungen 169 Siedlungsstrukturelle Aspekte 180 Baustrukturelle Aspekte 192 5 Auswertung und Erkenntnisse 197 Einflussfaktoren auf die informelle Siedlungsbildung 197 Steuerbarkeit der Einflussfaktoren 216 Morphologie und Funktionalität informeller Siedlungen unter Betrachtung der Einflussfaktoren 217 Zusammenfassung 219 6 Ausblick 220 L Literaturverzeichnis 225

In the perilous waters of the Mediterranean Sea, migrants find themselves facing limited choices when in distress. Their options are stark: either to rely on the lifesaving efforts of Non- Governmental Organisations (NGO) aid workers conducting Search and Rescue (SAR) Operations, to be intercepted by the Libyan Coast Guard (LCG) and subsequently detained in Libya where their human rights are gravely violated, or to face the tragic fate of perishing at sea. Unfortunately, the criminalisation of SAR Operations, spearheaded by NGO aid workers, hinders the rescue of migrants, thereby exacerbating the risks they face and leaving them vulnerable to interception by the LCG. This interception, as argued in this thesis, inevitably leads to the perpetration of Crimes Against Humanity (CAH) against these vulnerable migrants. This thesis sheds light on the issue of Italy’s increasing criminalisation and vilification of humanitarian aid workers engaged in SAR missions in the Mediterranean Sea. It critically examines the consequences of such criminalisation on the lives and rights of migrants, exploring the complex dynamics between SAR Operations, interception by the LCG, and the commission of CAH. Drawing upon a comprehensive lens of interpretation that integrates legal analysis, human rights principles, and the international legal framework, this study concludes that criminalisation of SAR operations is indeed a contributing factor towards the CAH faced by migrants in Libya. Moreover, it identifies the potential liability of Italian State Officials (ISO) at the International Criminal Court (ICC) for their role in enacting legislations that effectively criminalises SAR operations.

Le cyberespace a radicalement changé la donne sur le plan de la sécurité internationale, modifiant la représentation que nous pouvions avoir de la guerre. Nous assistons aujourd’hui à une nouvelle forme de conflit où l’information constitue à la fois un support d’action, mais également un actif sensible qu’il convient de maitriser. L’encadrement des comportements dans le cyberespace est donc devenu de facto un impératif pour maintenir sa stabilité. C’est ainsi que de nombreuses initiatives ont été amorcées tant par les États (par exemple avec la création du groupe d’experts gouvernementaux en charge des progrès des technologies de l’information et des communications dans un contexte de sécurité internationale), que par les acteurs privés (normes alternatives en tout genre). Cependant, leur convergence n’est que partielle leurs positionnements géopolitiques et stratégiques divergents considérablement. Alors que les États veulent préserver leur marge de manœuvre dans le cyberespace, les acteurs privés souhaiteraient quant à eux assurer la continuité et le développement de leurs activités par la création d’un cadre juridique contraignant les comportements étatiques. Notre travail de recherche vise ainsi à trouver une solution au clivage entre ces différents acteurs. Selon nous, peu importe les perceptions et les désirs de chacun ; si un encadrement juridique du cyberespace doit voir le jour en droit international, celui-ci ne pourra aboutir sans le concours des États et des acteurs privés qui doivent donc collaborer. Cependant, il est essentiel de ne pas s’abandonner dans une quête de l’idéal, et ce en adoptant une démarche pragmatique ancrée dans la réalité. La régulation du cyberespace étant multiple en ce sens où chaque acteur est la source d’un flux normatif précis (réglementation étatique et régulation technique), il convient de trouver le moyen de faire coïncider leurs approches, tout en conservant la place de chacun dans l’ordre international pour éviter tensions et conflits. Dans notre travail de recherche, nous avons fait le choix de présenter notre argumentation en quatre temps. Il s’agit tout d’abord de rappeler les spécificités du cyberespace faisant de lui un lieu de conflits à part entière (Chapitre 1). Dans un second temps, nous expliquerons cette volonté des États de vouloir rendre à tout prix applicable aux cyber-attaques, un droit international pourtant inadapté aux défis techniques posés par ces nouvelles armes (Chapitre 2). Les acteurs privés étant les grands experts du réseau, nous étudierons dans un troisième temps les initiatives normatives qu’ils ont su mettre en place, celles-ci venant d’ailleurs concurrencer le travail de réflexion mené par les États (Chapitre 3). Finalement, nous arriverons à la conclusion que la cyberpaix ne sera réellement possible que si trois éléments sont réunis : la corégulation, l’internormativité et la confiance entre les États et les acteurs privés (Chapitre 4). / Cyberspace has radically changed international security, altering our understanding of warfare. Today, we are witnessing a new form of conflict in which information is both a medium for action and a sensitive asset that must be controlled. In order to maintain the stability of cyberspace, it has de facto become imperative to regulate actions in cyberspace. For this reason, many initiatives have been started by States (for example, the Group of Governmental Experts in the Field of Information and Telecommunications in the Context of International Security) and by private actors (various alternative norms). However, their convergence is only partial, as their geopolitical and strategic positions diverge considerably. While States want to preserve their room for maneuver in cyberspace, private actors would like to ensure the continuity and development of their activities by creating a legal framework which constrains the behavior of States. This research project seeks to find a solution to the divide between these different actors. From our point of view, regardless of one's perceptions and desires, a legal framework for cyberspace in international law will see the light of day only if States and private actors cooperate. However, it is essential that we do not abandon ourselves to a quest for the ideal and adopt a pragmatic approach that is rooted in reality. Because the regulation of cyberspace is animated by multiple sources of norms stemming from different actors (state regulation and technical rules), it is necessary to find a way to make their approaches coincide, while preserving everyone's place in the international order to avoid tensions and conflicts. In our research, we have chosen to present our argument in four chapters. We first recount the features of cyberspace that make it a place of conflict in its own right (Chapter 1). Second, we explain the desire of States to apply international law to cyber-attacks, although it is ill-suited to the technical challenges posed by these new weapons (Chapter 2). Third, given that private actors are the major experts of the network, we will examine the normative initiatives that they put in place and that compete with the work carried out by States (Chapter 3). Finally, we will come to the conclusion that cyberpeace will be possible only if three elements are brought together: coregulation, internormativity, and trust between States and private actors (Chapter 4).

A presente dissertação é sobre a atuação do Estado na economia como acionista minoritário, focando, em especial, no caso do Brasil. Em um primeiro momento, tratamos das possibilidades do uso das participações minoritárias, apontando que, embora estejamos falando de propriedade pública sobre parcelas do capital social de empresas privadas, essas participações não configuram, somente, forma de exploração direta da atividade econômica, devendo ser compreendidas como uma técnica jurídica ou uma ferramenta da qual o Estado pode se valer para realizar as diferentes modalidades de atuação na economia. Nesse sentido, mostramos como as participações minoritárias possibilitam a atuação do Estado como empresário, regulador, fomentador e investidor. Em seguida, falamos dos mecanismos societários que a Administração Pública pode utilizar para que, mesmo como acionista minoritária, possa influenciar a direção das empresas público-privadas, tais como os acordos de acionistas e as golden-shares. Após cuidarmos da natureza jurídica e das vantagens comparativas da atuação estatal na economia por meio de participações minoritárias, passamos a analisar os limites dessa atuação. Desse modo, deve-se distinguir entre o uso das participações públicas como opção legítima de atuação na economia versus sua aplicação como burla ao regime jurídico aplicável às empresas estatais mediante o controle societário disfarçado e a simulação de contratações administrativas. Por fim, tratamos da questão da escolha de parceiros privados pela Administração Pública, bem como dos controles públicos que incidem sobre as empresas participadas. / This dissertation is about the state action in the economy as a minority shareholder especially focusing on the Brazilian case. At first, we discuss the possibilities of the use of minority equity stakes pointing out that, although we are talking about public ownership of shares of private companies, this equity participations do not constitute only a means of direct exploration of an economic activity, instead they should be considered as a legal technique or a tool which the state can rely on to accomplish the different modalities of economic action. This way, we show how the minority positions enable the state to act as an entrepreneur, a regulator, a promoter of private action and an investor. Then we talk about the corporate mechanisms that the Public Administration can use to, even as a minority shareholder, influence the direction of public-private companies, such as shareholders agreements and golden-shares. After dealing with the legal nature and the comparative advantages of the state economic action as a minority shareholder, we proceed to examine the limits of such action. Thus, we must distinguish between the use of minority equity as a legitimate option of state action in the economy versus its application as a way to elude the legal framework applicable to the state-owned enterprises by the disguised corporate control of private companies and the simulation of administrative procurement. At last, we deal with the issue of the choice of private partners by the Public Administration, as well as the public controls which apply to the invested companies.

A presente dissertação é sobre a atuação do Estado na economia como acionista minoritário, focando, em especial, no caso do Brasil. Em um primeiro momento, tratamos das possibilidades do uso das participações minoritárias, apontando que, embora estejamos falando de propriedade pública sobre parcelas do capital social de empresas privadas, essas participações não configuram, somente, forma de exploração direta da atividade econômica, devendo ser compreendidas como uma técnica jurídica ou uma ferramenta da qual o Estado pode se valer para realizar as diferentes modalidades de atuação na economia. Nesse sentido, mostramos como as participações minoritárias possibilitam a atuação do Estado como empresário, regulador, fomentador e investidor. Em seguida, falamos dos mecanismos societários que a Administração Pública pode utilizar para que, mesmo como acionista minoritária, possa influenciar a direção das empresas público-privadas, tais como os acordos de acionistas e as golden-shares. Após cuidarmos da natureza jurídica e das vantagens comparativas da atuação estatal na economia por meio de participações minoritárias, passamos a analisar os limites dessa atuação. Desse modo, deve-se distinguir entre o uso das participações públicas como opção legítima de atuação na economia versus sua aplicação como burla ao regime jurídico aplicável às empresas estatais mediante o controle societário disfarçado e a simulação de contratações administrativas. Por fim, tratamos da questão da escolha de parceiros privados pela Administração Pública, bem como dos controles públicos que incidem sobre as empresas participadas. / This dissertation is about the state action in the economy as a minority shareholder especially focusing on the Brazilian case. At first, we discuss the possibilities of the use of minority equity stakes pointing out that, although we are talking about public ownership of shares of private companies, this equity participations do not constitute only a means of direct exploration of an economic activity, instead they should be considered as a legal technique or a tool which the state can rely on to accomplish the different modalities of economic action. This way, we show how the minority positions enable the state to act as an entrepreneur, a regulator, a promoter of private action and an investor. Then we talk about the corporate mechanisms that the Public Administration can use to, even as a minority shareholder, influence the direction of public-private companies, such as shareholders agreements and golden-shares. After dealing with the legal nature and the comparative advantages of the state economic action as a minority shareholder, we proceed to examine the limits of such action. Thus, we must distinguish between the use of minority equity as a legitimate option of state action in the economy versus its application as a way to elude the legal framework applicable to the state-owned enterprises by the disguised corporate control of private companies and the simulation of administrative procurement. At last, we deal with the issue of the choice of private partners by the Public Administration, as well as the public controls which apply to the invested companies.