Quantifying the Relation between Activity Pattern Complexity and Car Use Using a Partial Least Square Structural Equation Model

in Sustainability (2022), 14(19),

Radial analysis and scaling of urban land use

in Scientific Reports (2021), (22044),

We determine the functional form and scaling law of radial artificial land use profiles in 300 European functional urban areas (FUAs). These profiles, starting from a fully artificial surface in the city ... [more ▼]

We determine the functional form and scaling law of radial artificial land use profiles in 300 European functional urban areas (FUAs). These profiles, starting from a fully artificial surface in the city center, decrease exponentially, the faster the smaller the city. More precisely, the characteristic decrease distance scales like the square root of total population, meaning that the artificial surface of cities is proportional to their population. This also means that the amount of artificial land per capita is independent of city size, and that larger cities are not more or less parsimonious in terms of land use than smaller ones. [less ▲]

Scaling of urban heat island and NO2 with urban population: A meta-analysis

Scientific Conference (2021, June 29)

Scaling of urban heat island & NO2 with urban population: a meta-analysis

Scientific Conference (2021, May 28)

Les pratiques du quotidien transfrontalières dans la Grande Région SaarLorLux

E-print/Working paper (2021)

This contribution deals with the daily cross-border practices of the inhabitants of Saarland, Lorraine, Luxembourg, Rhineland-Palatinate and Wallonia. It will deal with various aspects of unquestioned ... [more ▼]

This contribution deals with the daily cross-border practices of the inhabitants of Saarland, Lorraine, Luxembourg, Rhineland-Palatinate and Wallonia. It will deal with various aspects of unquestioned activities that are regularly carried out in a country other than the country of residence. The dimension of regular physical mobility in a transnational perspective will have to be integrated into this analysis insofar as cross-border everyday practices represent routine activities associated with a circular (pendular) movement that extends beyond neighbouring national territories. From this point of view, it should be emphasised that the Greater Region SaarLorLux is already experiencing pronounced cross-border mobility phenomena: mobility in the context of employment and in the context of residential migration. [less ▲]

Radial Urban Forms: Lessons from Land Profile Scaling Analyses & Spatial-Explicit Models

Scientific Conference (2020, November 25)

We definitely live in an increasingly urban World for half of humanity now lives in cities. Cities provide wealth but also negatively impact the environment and the health of citizens. Arguably the ... [more ▼]

We definitely live in an increasingly urban World for half of humanity now lives in cities. Cities provide wealth but also negatively impact the environment and the health of citizens. Arguably the benefits and costs of cities relate to both their size, in population terms, and their internal structure, in terms of the relative spatial arrangement of built-up and natural land. Much of urban research focusses on very large cities and urban cores. Yet 3 urban human out of 4 live in cities of less than 4 million inhabitants (according to the global GHSL dataset). Similarly, 3 out of 4 in a typical (European) city do not live in its core but beyond (using a 7-8km radius to define core for a city like London or Paris). To address urban sustainability issues and design adaptation policies, these 75% certainly count and, we can argue, also deserve specific attention because of the relative proximity between urban and non-urban (natural) use that smaller cities and suburban (non-core) areas may permit. In this respect, it is key to understand how the internal structure of cities, in particular the form and density of built-up areas and the interwoven green space emerge out of the core up until the fringe. It is also key to understand whether the form of cities, especially density gradients and the share of urbanised/non-urbanised land change with city size. In this talk we draw lessons from 2 research approaches to urban forms: one theoretical that uses spatial micro-economic simulations, and one empirical that uses spatially detailed land use datasets. Our theoretical simulations relate individual behaviour to urban forms while our empirics relate urban forms to city size. Both have in common a radial perspective to cities, i.e. explicitly or implicitly assuming that the accessibility trade-off to a given centre is a key determinant of locations and land uses. In both cases, we look at urbanisation and green space structures and at pollution exposure as an example of impact. [less ▲]

Scaling of urban heat island & NO2 with urban population: A meta-analysis

Presentation (2020, January 14)

L'offre transfrontalière en commerce de détail dans la Grande Région SaarLorLux

E-print/Working paper (2020)

The study examines the commercial agglomerations in the inner border regions of the Greater SaarLor-Lux Region on the basis of our own surveys conducted between 2010 and 2012. It quantifies and typifies ... [more ▼]

The study examines the commercial agglomerations in the inner border regions of the Greater SaarLor-Lux Region on the basis of our own surveys conducted between 2010 and 2012. It quantifies and typifies the commercial offer according to the size and composition of shopping centres. The territory covered is made up of the Grand Duchy of Luxembourg and the Belgian, German and French conurbations within a 20-minute drive from the Luxembourg border. This isochrone includes the following cities and their conurbations: Trier and Bitburg in Rhineland-Palatinate, Saarbrücken in Saarland, Metz, Thionville and Longwy in Lorraine as well as Arlon and Bastogne in Wallonia. Only one nodule is located beyond this zone: the Fashion Outlet Zweibrücken in Zweibrucken. It appears in the database because of its wide reach and its ability to recruit customers as far away as Luxembourg. [less ▲]

Le brassage dans la Grande Région SaarLorLux

E-print/Working paper (2020)

In the Greater Region SaarLorLux, which consists of Lorraine, Luxembourg, Rhineland-Palatinate, Saarland and Wallonia, the beginnings of beer date back to the Roman occupation. At first, beer was brewed ... [more ▼]

In the Greater Region SaarLorLux, which consists of Lorraine, Luxembourg, Rhineland-Palatinate, Saarland and Wallonia, the beginnings of beer date back to the Roman occupation. At first, beer was brewed mainly in monasteries. The oldest evidence of a monastic brewery is found in Lorraine, dating from 771 BC, and in Luxembourg only from around 1300. In both regions, religious institutions were the main type of brewery until the industrialization. The first evidence of a municipal brewery dates back to the 12th century; in the beginning, these breweries did not compete with the monasteries. In Wallonia, too, monastic breweries developed until the French occupation, and hence secularisation, brought the business to a halt from 1794. Today, most of the remaining breweries in the Greater Region are part of international groups. There are still a few independent breweries, such as in Rhineland-Palatinate and Saarland, where one of Germany's largest brewing groups, the Karlsberg Group, dominates the industry. In addition to these national companies, since the 1980s, microbreweries have begun to emerge with an exclusively local scope. They ensure that local brewing techniques are not lost. [less ▲]

Landscape typology of urban forest ecosystem services across European urban areas

Scientific Conference (2019, September 09)