Developments to promote sustainable mobility require active and effective public participation projects in which the form of participation (e.g., consulting citizens), the objective of the project (e.g. harnessing local knowledge), and the indicators to assess if the project was effective (e.g., participants’ evaluations) are aligned. In practice, this alignment seems to be rare, but scientific research backing up this claim is lacking. For this scoping review, we have collected and analyzed peer-reviewed case studies on public participation projects for sustainable mobility in 14 countries. Per case, we identified forms, objectives, and effectiveness indicators and assessed their level of alignment. Our main findings show a wide variety of participation forms, of which consultation was the most dominant. Cases also often had multiple objectives, and many projects included measures to evaluate their effectiveness. Most relevant and in line with what we assumed, almost all of the projects demonstrated a degree of misalignment between objectives and effectiveness evaluation standards. Although these results do not imply that public participation projects in sustainable mobility are not effective, it does seem to suggest that participation can benefit from a more structured and aligned approach.

Mobility as a Service (MaaS) involves integration of various forms of public and private transport services into a single mobility service, accessible on demand. For MaaS to become successful, different suppliers of transport services have to cooperate in alliances in order to bring new benefits in the short and long term. Past experience demonstrates that this is a challenge, and existing transport providers are struggling with this cooperation. Various factors, including divergent interests of stakeholders, may limit the formation of such alliances. In this paper, we resort to the theories of alliance formation to extend our understanding of the formation of alliances within MaaS. Based on the economic, sociological and business literature we propose a conceptual model and formulate ten fundamental propositions for alliance formation to offer MaaS systems. The model takes the perspective of business firms for whom the institutional environment is an exogenous influence. We then apply this conceptual alliance-formation-model for a MaaS-pilot in Nijmegen, The Netherlands. Stakeholders within this pilot were interviewed on their conditions for forming an alliance. It appears that shared goals, limited risks for the partners involved, trust, and stimulating public actions are crucial for a successful alliance. For the pilot, however, learning appears to be the main motive for the firms to get involved. For future transition from the exploration to the exploitation phase of MaaS alliance, these results should be taken into account. The framework and the propositions developed in this paper could be adopted as the necessary preconditions for designing a proper governance structure for providing MaaS services.

Research on planning support systems (PSS) is increasingly paying attention to the added value that PSS applications have for planning practice. Whereas early studies tended to have a rather conceptual focus, recent studies have paid more attention to empirics. Although this is a step forward, there is still a notable gap in the literature: a dearth of empirical evaluations of PSS applications from a comparative perspective. This paper addresses this gap, based on an earlier published conceptual framework that identifies the potential added values of PSS applications. The paper also tentatively explores the effect of three explanatory factors: support capabilities of the PSS, usability, and the context. In doing so, it reports on research of four PSS applications in The Netherlands. The research method consisted of questionnaires completed directly after the session, open interviews and conversations with stakeholders, and observations. With regard to added value as perceived by the participants, the findings indicate that learning, both about the object and about others, was a key perceived added value in all four cases, despite differences in context, support capabilities and usability scores. Moreover, although usability perceptions of the PSS applications varied, overall they were relatively positive. Context appears to have a substantial effect on the perceived added value of the PSS application, making it hard to distil the exact effect of the support capabilities and usability perceptions. The effect of context is one of the topics that could be picked up in further studies into the added value of PSS. One way to accomplish this in future research is by comparing a larger number of different PSS applications in different contexts, resulting in a higher n in order to enable correlational analyses and cross-national comparisons to better grasp the influence of the institutional context.

Although planning support systems (PSS) have now undergone more than two decades of research and development, this is not reflected in their practical application. In this paper we argue that one of the reasons for this is that too much emphasis is put on the instrument rather than the usage and planning context. A better understanding of the relationship between planning practice and PSS is needed in order to improve the role of the latter. We argue that communicative and analytic approaches to planning should be combined. A key to this is a more careful conceptualization of the concepts of knowledge and planning support. Therefore, we have developed a conceptual framework in which the characteristics and evaluation of knowledge and the role of planning support are central. Combined with the notion of storytelling, we believe that this results in a perspective for PSS that has potential for future applications. We conclude the paper with recommendations for future research.

Planning Support Systems (PSS) are geo-information based tools to support planning. Since the term PSS appeared for the first time in the late 1980s it has evolved into a serious academic subfield. In this debate, little systematic attention has been paid to the added value of PSS for planning practice. In particular the perspective of users requires more empirical attention. This paper attempts to fill this gap by answering the question: What is the practitioner's perception of the added value of PSS? In doing so we first develop a conceptual framework including the most important added values of PSS observed in the literature. Next, we describe an empirical study of the MapTable PSS, a support tool that is relatively frequently used in the Netherlands. Fifteen interviews were conducted and a Group Decision Room workshop was organized in order to systematically gather perceptions of users about the added value of this PSS. Added values that particularly emphasized are improved collaboration and communication among stakeholders, something which resonates with recent trends in planning. The added value of a better informed outcome is, somewhat surprisingly, considered less important. In order to deepen our understanding, we recommend more research in different contexts and with different tools.