  This paper summarizes a cross-border mobility study, origin-destination
mobility modelling and visualization, conducted in support of the
infrastructure development efforts of local authorities and NGOs on the area
over the Kayanga-Geba River, at the border between Senegal and Guinea Bissau.
It builds on the data collected through participatory mapping for the
elaboration of the Cross-Border Land Management and Development Plans (Plans
PAGET) aiming to harmonize the different national territorial management tools
into a unique transnational tool through the consideration of border areas as a
territorial unity. Despite a small amount of available mobility data, we were
able to build a mobility model for the considered area, and implemented it in
the Traffic Simulation Framework, which was later used to calculate
origin-destination matrices for the studied regions in two cases: with and
without a cross-border mobility. We analyzed the differences in the mobility
patterns and visualized the mobility flows, deliberating on what may be the
potential impacts of building a bridge in the study area. Our methodology is
general and can be applied in similar studies on different areas. However, the
quality of results may depend on the available data.
