This study describes the pathways by which prospective users of a website for natural hazard communication experienced agency as user-centered design (UCD) participants. Formative interviews with residents, community managers, and outreach professionals revealed two pathways for agency during the design process—by directly influencing design changes and by indirectly affecting developers’ understanding of user needs—and previewed users’ potential agency during real-world use. Findings reveal how agential opportunities were constrained by UCD structure and choices of the development team. The authors discuss how supporting user agency during UCD can improve design and support buy-in for humanistic methods in interdisciplinary research teams.

This article explores how “flatten the curve” (FTC) visualizations have served as a rhetorical anchor for communicating the risk of viral spread during the COVID-19 pandemic. Beginning from the premise that risk visualizations have eclipsed their original role as supplemental to public risk messaging and now function as an organizer of discourse, the authors highlight three rhetorical tensions (epideictic–deliberative, global–local, conceptual metaphors–data representations) with the goal of considering how the field of technical and professional communication might more strongly support visual risk literacy in future crises.

Participating in user-centered design provides potential users of interactive risk visualization tools agency in influencing tool development. This article identifies and characterizes pathways for agency that users may experience as they participate in design of interactive tools for visualizing environmental risks. We present an empirically based conceptual framework for better understanding user agency during visualization tool development based on findings from interviews with professional visualization tool developers and discuss practical implications and future research recommendations.

The design of interactive applications for online communication is an ongoing area of research within technical communication. This study reports on the development of an interactive sea-level rise (SLR) viewer, a data visualization tool that communicates about the potential effects of SLR along coastlines. It describes the formative evaluation of a location-specific SLR viewer created via integral stakeholder engagement. Participants performed a series of tasks, answered questions about the tool's usability and communicative effectiveness, and made suggestions for ways to improve its application to desired tasks. The authors discuss the implications of this study for visual risk communication and make recommendations for others developing similar interactive data visualization tools with audience input.