Les réseaux de transport à grande vitesse en France : construction et apports d'un système d'information géo-historique

The originality of this Historical Geographic Information System (SIGH) is that it is focuses on various transport networks (road and railway) at several temporal scale (from 1975 to 2010). The corresponding spatial network offers the possibility to generate spatial and temporal matrices across France, at different dates. These possibilities open important spatial analysis perspectives. They allow for example to assess the effect of investments in high-speed transport supply on the durations of intercity trips, also multiple opportunity in the field of Regional Science and Complex Systems analysis.

Géo-visualisation des flux maritimes mondiaux

Géovisualisation des flux maritimes mondiaux,

Conférence francophone Esri, Versailles, FRANCE, 05-/10/2016 - 06/10/2016; La planche présente trois possibilités de géo-visualisation des flux et mouvements de marchandises à l'échelle mondiale, en raison des problèmes spécifiques qui s'y posent.

A Matrix Approach to the Analysis of Sociometric Data, Sociogram and Sociomatrix

Geovisualizing the sail-to-steam transition through vessel movement data

International audience; Technological transitions in the maritime and port industries go along with increased transport and economic efficiency, resulting in faster movements and longer travelled distances. Yet, such transformations may also enhance disparities between winners and loosers, should they be ports or shipping companies. This research focuses on the particular case of the transition from sail to steam over the period 1890-1925, which witnesses the rapid replacement of sailing vessels, the latter concentrating 65% of the world fleet in 1890 but only 3.5% in 1925. It applies a variety of measures to compare how these two layers overlap in the network (at links and ports) and what …