Olivier Walther
Associate Professor | University of Florida
Gainesville, FL, UNITED STATES
Olivier Walther focuses on cross-border trade and transnational political violence in North and West Africa.
Biography
Olivier Walther focuses on cross-border trade and transnational political violence in North and West Africa using spatial and network approaches. He is an assistant professor of geography in the College of Liberal Arts and Sciences.
Areas of Expertise (8)
Africa
Borders
Cities
Conflict
Regional Integration
Sahel
Security
Terrorism
Articles (3)
The Spatial Conflict Life Cycle in Africa
Annals of the American Association of GeographersOlivier Walther, et. al
2024-12-09
The growing availability of geospatial data that document both how violent actors are connected and where their attacks take place offers a unique opportunity to produce a more integrated approach to the evolution of armed conflicts. The goal of this article is to contribute to this agenda, by introducing the concept of the spatial conflict life cycle.
The impact of transport policies on road accessibility in Ghana (2010-2019)
African Geographical ReviewOlivier Walther, et. al
2024-02-01
This article examines the impact of transport policies on road accessibility in Ghana. To measure accessibility gains, the article applies a model that compares the area and population that can be reached in under four hours by road from any city in 2010 and 2019. By quantifying travel times required to reach the nearest city ten years apart, we measure whether road improvement projects have led to improving accessibility and in which regions of Ghana.
Mapping the Travel Geography of the 9/11 Network
The Professional GeographerOlivier Walther, et. al
2023-05-16
This article models the geography of the 9/11 network members’ many travels from the moment the hijackers first boarded a plane to the United States until they killed 2,977 people on 11 September 2001. Building on publicly available sources, and for the first time in the literature, we address the spatiality of the terrorist network through two related concepts.
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