Participatory infrastructure planning through data-driven multimodal visualisations

In infrastructure planning processes, most participants only get to see a limited, pre-filtered view of the project, dictated by their specific role in the workflow and the software they use. Changes or suggestions they make based on their understanding or from their point of view will almost inevitably contradict decisions made in another part of the project. Ideally, when this happens, their tools should immediately warn them about the consequences and conflicts introduced by their decision, in the moment that a change is made. In this paper, we thus present a system design for how to create highly responsive, data-driven multimodal visualization tools that focus on one specific part of the planning process, but keep the participant informed on the requirements of the entire project. We show a prototype based on this design and discuss challenges and necessary developments to implement such systems in practical contexts.