Designing a historically grounded bibliographic model to enhance reference reliability in planning research

Planning research should rely on empirical evidence and on how knowledge is structured, cited, and contextualized. This paper introduces the Historically Grounded Bibliography (HGB) as a heuristic model, which redefines bibliographic analysis as a dynamic methodological tool rather than a static list of references. The HGB model is built on a scoping review of three analytical principles—Interpretation, Context, and Lineage—that uncover interconnections and historical dependencies in planning research. The model’s construct is developed into a procedural tool encompassing six steps and twelve actionable procedures. For example, this manuscript used the HGB model, presenting steps and actions for constructing a bibliography. Our results confirmed that the HGB model enhances the reliability and interpretive capacity of bibliographic inquiry. This heuristic model positions bibliography in planning research as a methodological bridge between qualitative understanding and data-driven research, thereby helping select a reliable list of references.