This thesis contributes to theorizing governance and state restructuring and assesses the effectiveness of the strategic transport governance arrangements in Scotland during the period 2006-2007/08.  The context is the seven Regional Transport Partnerships (RTPs) that were established to tackle cross-boundary and regional issues.  The ontology is broadly critical realist and the methodological approach is qualitative utilising a modified grounded theory approach.  Fifty-four interviews were carried out and three RTPs used as case studies over the period 2005/06-2007/08. There are two conclusions.  First, progress in governing the development of strategic transport issues hinges on closer integration of spatial planning and transport planning strategy processes. Distinct professional spheres need to work more collaboratively.  Second, the concepts of ‘hollowing-out’ and ‘filling-in’ from governance literature need to be enhanced to reflect the nuances found in this empirical research. Drawing on a New State Spaces framework, the concepts of centrally-orchestrated regionalism/regionally-orchestrated centralism, and the process-oriented work on collaborative governance reveals a Collaborative Inertia in the current RTP structure that is founded on uncertainty.  It is proposed that two new processes have been identified: ‘over-stuffing’ as a useful perspective in explaining the structure and relations evident in Scottish transport governance and that there has been a process of ‘locally-orchestrated regionalism’ in the formation of voluntary RTPs, which has paradoxically led to a weak statutory regionalism. However, the regional dimension remains important and suggestions are made regarding strengthening integration between sectors at the same time as reducing the organisational complexity of governance.

Technological advancements in battery electric vehicles (BEVs) have developed alongside increases in vehicle size and the introduction of vehicle styling more similar to internal combustion engine vehicles (ICEVs). Increases in the distance a BEV can travel on a single charge have been accompanied by the ability to recharge the vehicle much faster than the BEV models available just 10 years ago. The Environmental Protection Agency (EPA) reports for model year 2021 include 40 BEV models and many manufacturers have signaled plans to increase the number of battery electric vehicle models offered. As more consumers consider purchasing a battery electric vehicle the question of how well that vehicle can meet all their needs is asked more frequently. This research examines the current DC-Fast charging infrastructure to evaluate how the current distribution of chargers impacts consumer convenience for non-commute routes. No study has evaluated the impact that the current DC-Fast charging infrastructure has on the consumer driving experience and we fill this research need because it will allow consumers to understand more accurately how a (BEV) may meet their needs while also allowing BEV manufacturers to better understand the impacts of potential investments in charging infrastructure. The authors examine over 30,000 pairs of simulated BEV and ICEV routes and compare the distance and duration variations for each pair. Due to our effort to consider the suitability for long distance trips, we have ensured that more than 50% of the simulated routes have a minimum travel distance of 500 miles and over 15% of the routes exceed 1000 miles. Working from this data, 99.7% of the locations in a sample of 360 places in the contiguous U.S. can be reached without relying on the ability to charge a BEV overnight. We further identify a median increase in BEV trip duration of 13.1% and a median increase in distance of 0.06%. The differences in median travel time, particularly when trips exceed 400 miles suggests that long trips made with a BEV may result in longer total travel time, however, differences in route length between BEVs and ICEVs were minimal. These findings serve as the foundation to discuss challenges and solutions related to widespread non-commuter adoption of BEVs in a variety of geographic locations, including how and where the consumer experience may vary. The results from this work will support consumer awareness about the ability of a BEV to meet their needs as well to aid in the evaluation of infrastructure investment as it relates to improving the consumer experience. The methods employed serve as a foundation for future work to investigate the relationship between vehicle type and consumer experience as well as to advance algorithms capable of evaluating routes that require a selection to be made from a set of optional stops. / Master of Science / Technological advancements in battery electric vehicles have developed alongside increases in vehicle size and the introduction of vehicle styling more similar to the gasoline powered internal combustion engine vehicles that many people currently own. Increases in the distance a vehicle can travel on a single charge have been accompanied by the ability to recharge the vehicle much faster than the battery electric vehicle models available just 10 years ago. The Environmental Protection Agency reports that there are 40 battery electric vehicle models available for model year 2021 and many manufacturers have signaled plans to increase the number of battery electric vehicle models offered. As more consumers consider purchasing a battery electric vehicle the question of how well that vehicle can meet all their needs is asked more frequently. This study examines one of the factors that impact the answer to that question: how does the driving experience vairy between gasoline powered vehicles and battery electric vehicles when long trips must be made. The distance and total time to complete the trips were compared across more than 30,000 pairs of routes within the lower 48 states of the United States and the District of Columbia. Battery electric vehicle routes were modeled based on the capabilities of Tesla vehicles due to the well-developed charging infrastructure that supports them. More than 50% of the routes examined exceed 500 miles, emphasizing the focus on long distance travel. Many routes with a total length of less than 400 miles were found to have little or no difference in total travel time or travel distance. However, when trips with a length of 500 miles or more are included the median difference in travel time is 13.1% accompanied by a minimal difference in travel distance of 0.06%. Due to the rapidly increasing travel range of battery electric vehicles and the speed at which they can recharge combined with the frequent installment of new charging locations throughout the United States it is expected that these differences would be smaller today than at the time this study was conducted. The results of this study can be used by consumers to establish realistic expectations regarding how the experience of traveling long distances in a battery electric vehicle may compare with the gasoline powered vehicle they are already familiar with. Battery electric vehicle manufacturers and others considering investments in charging infrastructure may also apply the findings discussed in this study to better communicate the long-distance performance of their vehicles with consumers and identify locations where improvements in the charging infrastructure would be most beneficial to the consumer experience. Future work is needed to explore how the long-range travel experience has continued to improve. The framework of this study provides a foundation for further evaluation of the impact that vehicle and infrastructure developments may have on the consumer experience.

L’activité logistique, c’est-à-dire l’encadrement et la prise en charge des échanges de marchandises entre les acteurs économiques, connait un essor récent, dans le cadre de la flexibilisation et l’internationalisation de l’économie, menant à son autonomisation économique et géographique. Dans ce contexte, les pouvoirs publics cherchent à encadrer ses impacts territoriaux et à promouvoir son développement, afin de créer de l’activité et de l’emploi. <p>Cette thèse cherche à identifier et comprendre la géographie de ce secteur pour ensuite en analyser les impacts territoriaux, au regard de la politique publique en Europe. Notre analyse est organisée en trois étapes.<p>En premier lieu, nous étudions les facteurs de localisation des activités logistiques, en particulier des éléments statiques, entrepôts, établissements industriels ou centres de distribution, à l’échelle de l’Europe du Nord-Ouest. Pour cela, nous construisons une base de données de la localisation des établissements logistiques. <p>Deuxièmement, nous analysons les politiques menées par les différents niveaux de pouvoirs européens en matière de logistique, afin de comprendre leur articulation et de mettre en évidence les courants généraux qui s’en dégagent. Dans ce cadre, nous mobilisons les situations wallonnes et bruxelloises pour concrétiser et approfondir notre étude.<p>Ceci permet, dans un troisième temps, d’étudier les impacts territoriaux des activités logistiques en Europe, en mettant en évidence le rôle des pouvoirs publics ainsi que celui des attentes et choix d’implantations du secteur et les rapports de force se nouant entre ces acteurs. Le matériel mobilisé est issu des textes politiques, de la littérature scientifique et d’études de cas issues d’Europe et de Bruxelles et Wallonie en particulier.<p>Nos résultats mettent en évidence la proximité existant entre le développement de l’activité logistique et l’évolution de l’économie européenne. C’est la flexibilisation et l’intégration européenne de l’économie qui sont à l’origine de l’essor d’un secteur logistique ayant une existence propre. En retour, cette activité participe à la poursuite et l’intensification de l’organisation économique actuelle, en facilitant les échanges de biens entre acteurs économiques.<p>Dès lors, la localisation des activités logistiques correspond à cette recherche de flexibilité, au niveau de la situation ou des modalités d’implantation. Ce sont les espaces intermédiaires, proches des centres et des axes et nœuds d’échanges qui sont privilégiés.<p>La prise en charge des enjeux territoriaux et les répercussions des décisions publiques en la matière témoignent de l’idéologie actuelle en matière d’économie et de développement territorial. L’essor de l’activité logistique a été permis et encouragé par la politique macroéconomique européenne. Dans ce cadre, la prise en charge de ses implications territoriales témoigne du privilège donné à la croissance, du secteur et de l’économie en général, selon les modalités politiques et économiques actuelles.<p> / Doctorat en Sciences / info:eu-repo/semantics/nonPublished

Encouraging a more sustainable commuter mode shift and improving urban transportation systems have the potential to reduce anthropogenic greenhouse gas emissions (GHGs), a major contributor to climate change. Replacing some single-occupancy vehicle (SOV) trips with alternative modes of transportation, such as public transit, walking, or bicycling, represents one approach to begin reducing transportation-related emissions. Collectively, these shifts in transportation patterns would help to reduce the negative social, economic, and environmental costs associated with high rates of personal vehicle use. Employer-provided benefits programs have the potential to influence commuter behavior by making sustainable, alternative commuting choices a more convenient and economically feasible option. In addition, the implementation of these programs can have broader benefits such as helping to achieve municipal and regional sustainability goals and improving community members’ physical health and quality of life. This study applies qualitative and quantitative analysis to investigate employee commuting behavior in response to employer-provided benefits in Kendall Square, a neighborhood in Cambridge, Massachusetts. The employee and employer survey data analyzed in this research was originally collected by TransAction, a transportation consulting firm in the Greater Boston region. To comply with Cambridge’s Parking and Transportation Demand Management (PTDM) Ordinance, TransAction works closely with companies to coordinate and manage onsite commuter services programs and prepare PTDM Annual Reports. The primary objectives of this research are: 1) to introduce the multi-dimensional benefits of re-envisioning the existing transportation networks; 2) to determine the influence of employer-provided commuting benefits on employee commute mode choice; 2) to provide guidance for employers interested in promoting a more sustainable employee commute mode split; and 3) to present the broader implications and applications of this research for employers, municipalities, and coordinating agencies interested in reducing SOV commuting trips and promoting the use of more sustainable, alternative modes of transportation. Overall, the findings from this research illustrate that while employers have the ability to promote more sustainable transportation choices among their employees, the complexity of the transportation network (and its interdependencies) requires collaboration among all stakeholders to initiate widespread, comprehensive changes.

Public transport policies play a key role in shaping the social and spatial structure of cities. These policies influence how easily people can access opportunities, including health and educational services and job positions. The accessibility impacts of transport policies thus have important implications for social inequalities and for the promotion of just and inclusive cities. However, in the transportation literature, there is still little theoretically informed understanding of justice and what it means in the context of transport policies. Moreover, few studies have moved beyond descriptive analyses of accessibility inequalities to evaluate how much those inequalities result from transport policies themselves. This is particularly true in cities from the global South, where accessibility and equity have so far remained marginal concerns in the policy realm. This thesis builds on theories of distributive justice and examines how they can guide the evaluation of transport policies and plans. It points to pathways for rigorous assessment of the accessibility impacts of transport policies and it contributes to current discussions on transportation equity. A justice framework is developed to assess the distributional effects of transport policies. This framework is then applied to evaluate recent transport policies developed in Rio de Janeiro (Brazil) in preparation to host sports mega-events, such as the 2014 FIFA World Cup and the 2016 Olympic Games, which included substantial expansion of the rail and Bus Rapid Transit (BRT) infrastructure. This research presents ex-post analyses of the policies implemented between 2014 and 2017 and ex-ante analysis of an as yet unfinished BRT project. It evaluates how the planned transport legacy of those mega-events impacted accessibility to sports venues, healthcare facilities, public schools and job opportunities for different income groups. The results show that there were overall accessibility benefits from the expansion in transport infrastructure between 2014 and 2017, but these were generally offset by the reduction in bus service levels that followed an economic crisis that hit the city after the Olympics. Quasi-counterfactual analysis suggests that, even if the city had not been hit by the economic crisis, recent transport investments related to mega-events would have led to higher accessibility gains for wealthier groups and increased inequalities in access to opportunities. Results suggest that those investments had, or would have had, greater impact on inequalities of access to jobs than in access to schools and healthcare facilities. The evaluation of the future accessibility impacts of the unfinished BRT corridor, nonetheless, indicates that such project could significantly improve access to job opportunities for a large share of Rio's population, particularly lower-income groups. Spatial analysis techniques show that the magnitude and statistical significance of these results depend on the spatial scale and travel time threshold selected for cumulative opportunity accessibility analysis. These results demonstrate that the ad-hoc methodological choices of accessibility analysis commonly used in the academic and policy literature can change the conclusions of equity assessments of transportation projects.

Like many other economic and social activities that are infrastructure-intensive, the transport sector is an important component of the economy impacting on national, regional and local development as well as the welfare of citizens. An efficient transport infrastructure provides a multitude of socioeconomic opportunities and benefits with positive multiplier effects such as better accessibility to markets, employment, education and health. If it is well managed, transport infrastructure transforms the quality of life of residents through dynamic externalities it generates. But when infrastructure is deficient in terms of capacity, efficiency or reliability, it can have unwarranted economic costs due to reduced or missed opportunities. Despite its central role in rural development, little is known about the extent and impact of the various benefits that arise from the development of roads, particularly in developing countries. A large body of literature exists documenting the spatial patterns of socioeconomic development which can be induced by road infrastructure development processes and are in most cases dynamic and temporal. The impacts of a given road infrastructure development can also be analysed at the local, regional or national perspectives. The local impact is expected to be limited to the immediate neighbourhoods of the highway including tukuls, towns and villages to be found on both sides of the road within a distance of 5kms defining the influence zone. Based on this, the main objective of this research is to assess socioeconomic impacts of road infrastructure development of three newly developed highways on their respective surrounding communities 5-10 years after the interventions. Two of the highways are gravel surfaced and one is paved type. The respective study names are: Gendewuha – Gelago road (Corridor 1), Mile – Weldiya road (Corridor 2) and Ginchi – Kachisi road (Corridor 3). Their respective lengths are 165; 125; and 105 kilometres, while the study refers 10 kilometres on both sides of the roads. The study had focused on primary data on selected variables that describe socioeconomic conditions both before and after the intervention by using mixed methods of data collection considering quasi experimental design (QED). The main methods of analysis employed are descriptive and inferential statistics. Models such as: Random model approach and double-difference regression were used. The research had utilized two types of impact analyses (temporal and spatial) for comparison and also tested by using paired sample t tests: First: for each of the three corridors, comparisons between current conditions and the situation before the road intervention and, second: comparing conditions in the zone of influence (ZOI) situated within 5kms with control zone (COZ) situated beyond 5kms which are considered not to benefit much from road improvements during the period covered by the study. The research is based on data collected from 392 household heads, 77 key informants, 69 FGD participants from seven different localities, traffic counts from seven points, physical observations, outputs of GIS analysis utilizing satellite imageries and vast secondary data. The findings show that there are more positive and less negative temporal and spatial socioeconomic impacts generated by the three corridors notwithstanding disparities among the different locations. Accordingly, the paved highway is found to have more powerful positive impacts than the gravel roads, which are of low standards and functioning poorly. The status of truck and bus terminals which should have been integrated in the highway development projects are still underdeveloped with obvious effects on the sustainability of their socioeconomic impacts in the study areas. Furthermore, certain natural and more importantly manmade factors are found to have pre-empted the realization of certain positive socioeconomic impacts to be obtained from road interventions. In a nutshell, the dissertation had proofed the importance of conducting impact evaluation in the study areas by answering the questions of ‘what works and what doesn’t? and what is the extent of the impact?; measuring the impacts and relating the changes in the dependent variables to developmental policies; investigating the positive and negative effects of road development interventions and their sustainability; producing information that is relevant from transparency and accountability perspective; and finally contributing to individual and organizational level learning that can be inspired by conducting impact evaluations from the perspectives of change theory, programme theory and central place theory. These also offer possibilities of informing decision makers as to whether to expand, or improve road development related interventions by way of programmes, projects and policies. Therefore, from the perspective of Transport Geography, it is the primary interest of the researcher to contribute towards filling the aforementioned gaps in the existing body of the knowledge in Ethiopia and elsewhere. / Geography / D. Litt. et Phil. (Geography)

De 1987 à 1997, le transport aérien intra-européen a connu un bouleversement institutionnel sans précé-dent avec sa libéralisation, c’est-à-dire le passage d’un environnement très régulé et contraint par les États à un environnement libéral. Au terme de ce processus, toute compagnie communautaire peut opérer n’importe quel vol intra-communautaire et les aides d’État sont interdites, obligeant les compagnies à être financière-ment rentables. La liberté d’accès au marché et l’impératif de rentabilité sont de nature à faire évoluer la géographie des réseaux et donc la desserte des ré-gions européennes par le biais de différentes dynami-ques (développement ou rationalisation des compagnies préexistantes, émergence de nouvelles compagnies, faillites, réorganisation des services publics,…).<p>La libéralisation du ciel européen a effectivement conduit à soumettre l’essentiel de l’offre intra-européenne aux « lois du marché », les services publics étant devenus résiduels (moins de 5% des sièges intra-européens). Pour autant, la concurrence à l’échelle des lignes n’est pas devenue la norme. Elle a certes aug-menté, en particulier sur des grandes lignes domesti-ques jadis très protégées, sur les principales lignes européennes entre régions métropolitaines et sur les lignes nord – sud à vocation touristique. Cependant, le développement de nombreuses nouvelles lignes exploi-tées par une seule compagnie a paradoxalement aug-menté le nombre et la part des monopoles de fait. De nombreuses concurrences n’ont lieu qu’indirectement, soit au travers de filiales étrangères (par exemple Spa-nair appartenant à SAS), soit par des compagnies low-cost opérant depuis des aéroports secondaires plus éloignés des grandes agglomérations européennes (par exemple Hahn au lieu de Francfort).<p>Entre 1991 et 2005, la desserte de l’espace européen libéralisé connaît d’importantes évolutions. D’une part, le volume de l’offre (en sièges) est presque multiplié par deux (+85%, +81% si l’on se limite aux vols intra-européens), soit un taux de croissance annuel moyen de 5,6%. Cette croissance concerne plus l’offre interna-tionale que nationale, qui l’emporte maintenant sur la seconde. D’autre part, la dynamique d’ouverture et de fermeture de lignes est spectaculaire :1308 créations contre 459 disparitions, si bien que le nombre total de lignes a augmenté de moitié et que le réseau européen actuel est un réseau pour moitié renouvelé par rapport à celui de 1991. Cependant, le poids en sièges des lignes héritées est de 8/10. Le réseau européen actuel est donc quantitativement toujours dominé par les relations historiques, qui constituent l’armature de la desserte aérienne européenne.<p>Les espaces touristiques balnéaires méridionaux ont capté une grande partie de cette croissance (3/10 des nouvelles liaisons, ¼ de l’augmentation générale du nombre de sièges). Si l’on y ajoute le tourisme urbain, on observe très clairement une banalisation du tou-risme aérien.<p>Une typologie évolutive des réseaux à l’échelle des compagnies a révélé des stratégies différenciées et donc des impacts variés en termes de desserte des territoires. Les grandes compagnies nationales ont généralement fortement développé leur offre tout en la concentrant plus encore sur leurs bases aéroportuaires traditionnelles organisées en hubs. Parfois, un second hub a dû être créé pour contourner des problèmes de saturation (Munich en plus de Francfort) ou mieux coller à la demande (Milan en plus de Rome). Les compagnies classiques ont aussi pris des participations dans des petites compagnies afin de pénétrer plus facilement, et à moindre coût, des marchés étrangers. Ces filiales — et leurs réseaux — ont parfois été converties en opéra-teurs régionaux alimentant les grands hubs. Par ail-leurs, diverses petites compagnies ont pu se développer à l’échelle européenne, sortant souvent de leur cadre national classique. Ces développements se sont tantôt faits au bénéfice des villes « de province » (en particu-lier en Grande-Bretagne), tantôt par concentration sur la capitale (en particulier dans les pays où les villes de province ont peu de poids économique et démographi-que). Enfin, des compagnies charters ont transformé leur offre en offre régulière, la rendant plus ouverte au public, au profit des zones touristiques méridionales qui sont ainsi plus facilement accessibles.<p>Mais la plus spectaculaire évolution est sans doute le développement des compagnies low-cost. Celles-ci sont responsables de 4/10 de la croissance de l’offre (en sièges) sur la période 1995-2004 ;elles sont aussi mêlées à 3/10 des nouvelles lignes européennes ouver-tes entre 1991 et 2005. Leurs réseaux renforcent les liaisons entre régions métropolitaines et entre celles-ci et les destinations touristiques. En outre, les régions subcentrales leur doivent la moitié de leur desserte et presque toute leur croissance. De nombreux petits aéroports leur doivent l’essentiel, voire la totalité, de leur desserte et de leur croissance, en particulier dans les régions subcentrales et intermédiaires. Ceci a consi-dérablement modifié les rapports entre compagnies et gestionnaires d’aéroports, plaçant ces derniers dans un rapport de forces qui ne leur est pas toujours favorable.<p>Ces dynamiques viendraient presque faire oublier les décroissances. D’une part, des faillites ont parfois eu un effet négatif marqué sur la desserte des villes, comme nous l’avons en particulier montré pour Bruxelles avec la faillite de la Sabena. D’autre part, les services publics subventionnés semblent être en régression, bien que l’analyse détaillée du cas français montre que la géo-graphie des services publics antérieurs à la libéralisation découlait parfois plus d’exigences politiques locales que de besoins réels.<p>A l’échelle régionale, l’analyse des évolutions par types économiques régionaux montre qu’au-delà de taux de croissance très variés et malgré toutes les dynamiques étudiées, la répartition de l’offre est demeurée assez constante :il n’y a pas de remise en cause de la hiérar-chisation de l’espace européen. Les régions métropoli-taines continuent en effet à polariser une très grande partie de l’offre et sont toujours les points de passage quasi-obligés pour les vols intercontinentaux. Un niveau en dessous, les régions centrales disposent toujours d’une offe honorable, quoique limitée à l’Europe et ses marges. Les régions subcentrales profitent d’une « décompression » des régions métropolitaines et cen-trales et de la dynamique low-cost. Les capitales des pays ex-communistes connaissent un rattrapage et sont repolarisées par l’Europe occidentale. Les périphéries touristiques connaissent un important développement mais pèsent peu globalement. Les autres périphéries et les espaces intermédiaires tendent à se marginaliser, victimes de trop faibles densités économiques et démo-graphiques et d’une contraction des services publics aériens.<p>Enfin, si le développement de lignes transversales entre petites villes est une réalité, leur poids est avant tout local. Celles-ci pèsent en effet peu globalement. <p> / Doctorat en sciences, Spécialisation géographie / info:eu-repo/semantics/nonPublished

L’aéroport est un objet géographique protéiforme, caractérisé par son « obsolescence accélérée » (BANHAM, 1962). Depuis les années 1990, son ultime mutation s’articule autour d’un processus de diversification fonctionnelle engendré par l’injection d’activités nouvelles, parfois éloignées du transport aérien, dans l’objectif d’accroître les profits et la rentabilité de l’infrastructure dans un contexte de privatisation généralisée. Cette évolution concerne les plus grands hubs mondiaux, notamment Paris-CDG, quatrième aéroport du monde selon le trafic passagers international. Cette tendance, qui a donné naissance au concept opérationnel d’airport city, tel qu’il est désigné par les observateurs et opérateurs anglo-saxons, attise doublement la curiosité géographique. En premier lieu, parce qu’elle interroge la fonction première de l’infrastructure de transport qu’est l’aéroport, qui devient alors un objet spatial non identifié qu’il convient de redéfinir. En second lieu, parce que cette désignation d’airport city, traduite par les opérateurs francophones par ville aéroportuaire, interroge la ville et surtout ce qui fait la ville dans ses dimensions matérielle et idéelle, c’est-à-dire l’urbanité et la citadinité. Suffit-il d’injecter des fonctions urbaines dans un espace pour en faire de la ville ? La ville aéroportuaire n’est-elle qu’une ville fonctionnelle ? En s’efforçant d’évaluer la pertinence géographique de la notion d’airport city, cette thèse impose de faire de l’urbanité et de la citadinité des concepts opératoires afin de les confronter au terrain aéroportuaire. Elle s’efforce également de replacer l’aéroport au centre de l’étude géographique en proposant un ajustement de l’échelle d’observation à l’ensemble de la zone aéroportuaire, évitant ainsi la synecdoque particularisante réduisant l’aéroport au terminal. Dans l’évaluation de la citadinité, elle a également pour objectif de saisir les spatialités de l’ensemble de la société aéroportuaire (passagers, employés, accompagnants, SDF, etc.). / Airports are protean geographical objects characterized by their « accelerated obsolescence » (BANHAM, 1962). Since the 1990s, their final transformation has been structured around a process of functional diversification engendered by new activities, which are sometimes very different from air transport, in order to increase the infrastructures’ profits and profitability in a context of widespread privatization. The world’s largest hub airports are concerned by this evolution, especially the Paris-Charles-de-Gaulle airport, the world’s fourth busiest airport by international passenger traffic. This trend, which has given birth to the operational concept of airport city, as the Anglo-Saxon operators and observers call it, stirs up the geographical curiosity in two ways. Firstly, it questions the primary function of airports, which become unidentified spatial objects that need to be redefined. Secondly, the concept of airport city questions the city itself. Indeed, what makes a city a city on a material (urbanity) and conceptual (“citadinity”) level? Can a space with urban functions be considered as a city? Is the airport city only a functional city? By assessing the geographical relevance of the concept of airport city, this thesis aims at making the concepts of urbanity and “citadinity” operational concepts, so as to compare them with the airport ground. By adjusting the observation scale to the whole airport area, it also replaces the airport at the centre of the geographical study. Thus, the airport is not simply viewed as a terminal. Finally, this thesis aims at understanding the whole airport society’s spatiality (passengers, employees, accompanying people, homeless people…) by assessing the concept of “citadinity".