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Refuge écologique dans les emprises d’infrastructures linéaires de transport : estimation du potentiel de France métropolitaine

Abstract : For a number of years, parts of the right-of-way (ROW) of several types of linear transport infrastructure (LTI) have been regarded as possible shelter for local flora and entomofauna. For developing a wise general policy to take advantage of this opportunity for the conservation of species and the restoration of ecological connectivity within landscapes, it is fundamental to know the ecological shelter potential (ESP) available within these ROW on a national scale. By considering the primary operating constraints of LTIs, their geometric characteristics and their environment, a calculation was carried out using a geographic information system (GIS) in order to approximate the linear extent and surface area of ESP at the scale of Metropolitan France. The ESP network spans over 88 094 km (39 % associated with power transmission network, 34 % with rail network, 18 % with the road network and 9 % with waterways). Its total minimum surface area amounts to 2 025 km2. The State holds a very large share of the ESP linear extent (46.2 %), particularly through its public rail domain (32.0 % of the total). The share of local authorities and concession companies (53.8 %) is mainly associated with road and power transmission networks (12.0 % and 39.1 % of the total, respectively) and opens up prospects for the involvement of private and communal landowners for making beneficial use of ESP.
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Submitted on : Tuesday, February 8, 2022 - 3:51:03 PM
Last modification on : Thursday, June 16, 2022 - 5:42:05 PM
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Denis Francois, Léa Medous, Claire Etrillard. Refuge écologique dans les emprises d’infrastructures linéaires de transport : estimation du potentiel de France métropolitaine. RTS - Recherche Transports Sécurité, IFSTTAR, 2022, 2022, 16p. ⟨10.25578/RTS_ISSN1951-6614_2022-03⟩. ⟨hal-03559708⟩



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