TY - JOUR TI - Assessing use-use interactions at sea: A theoretical framework for spatial decision support tools facilitating co-location in maritime spatial planning AU - Bonnevie, I AU - Hansen, H AU - Schrøder, L T2 - Marine Policy AB - The space occupied by traditional and new human-based marine uses at sea is expanding, creating a need for developing methods to assess interactions between co-located uses in maritime spatial planning (MSP). However, no clear terminology for use-use interactions exists. Thus, an analytical framework for spatial decision support tools (DSTs) to assess use-use interactions is deduced from literature. Four spatial-temporal links are found to either alone or together constitute use-use interactions: location links, environmental links, technical links, and user attraction links. It is found to be important for DSTs to support co-location management in MSP by iteratively through the MSP process 1) spatially-temporally locate spatial-temporal links constituting use-use interactions, 2) list conflicts and synergies of the located use-use interactions, and 3) weight the conflicts and synergies. With this analytical framework, two types of DSTs are analysed for their ability to include co-location; matrix- and ranking-based DSTs to detect conflicts and synergies and space allocating DSTs to avoid/minimise conflicts and optimise synergies. Whereas the first group of tools categorise or rank use-use combinations, the latter group use information about which multi-use combinations are possible as pre-existing knowledge, and thus the two groups of DSTs can advantageously be used together. A discrepancy is found between the co-location framework and the DSTs. It is argued that future tools could work on removing this discrepancy by considering the spatial-temporal links of use-use interactions, strengthen the focus on synergies, as well as prioritize ranking of synergies and conflicts over binary approaches that only evaluate spatial compatibility.Highlights:A heoretical framework describing marine human-based use-use interactions is developed.Existing decision support tools are analysed for their ability to assess marine use-use interactions.Spatial-temporal links constituting marine use-use interactions need to be further explored.The focus on synergies could advantageously be strengthened in future tools supporting MSP.Ranking of conflicts and synergies could advantageously be expanded in future tools supporting MSP. DA - 2019/08// PY - 2019 VL - 106 SP - 103533 UR - https://www.sciencedirect.com/science/article/pii/S0308597X18306729 DO - 10.1016/j.marpol.2019.103533 LA - English KW - Wind Energy KW - Fixed Offshore Wind KW - Marine Energy KW - Marine Spatial Planning KW - Human Dimensions ER -