With a plethora of major capital and regional centers worldwide being subjected to increasing population levels, there is a need to upgrade and expand the capacity and performance of their urban rail transit (URT) networks and systems. Fiscal constraints, however, have hindered many governments’ ability to fund the construction and operation of URT projects. While there have been numerous studies that have examined the use of public–private partnerships (PPPs) to deliver URT, there has been a paucity of research that has critically reviewed, analyzed, and compared developments in this important and emergent area of transportation procurement. In addressing this void, the authors undertake a state-of-the-art review by performing a systematic scientometric analysis of the extant URT PPP literature to determine gaps in knowledge and identify implications for policy and areas for future research. As a result of performing a state-of-the-art review, the contributions of this paper are twofold: (1) provide the foundations for developing a theoretical framework that can be used by policy-makers to ensure URTs are resilient and adaptable to change; and (2) identify the need for research to examine how land value capture can be used to finance mechanism to ensure the viability of PPPs.

Residents’ willingness to cooperate can contribute to the success of urban regeneration projects worldwide. However, limited research has explored factors determining residents’ willingness to cooperate with neighborhood regeneration projects. This study aims to investigate the influence of psychological factors on urban residents’ willingness to comply with neighborhood regeneration projects. To achieve this goal, the study extends the theory of planned behavior by specifying the effects of perceived benefit, perceived risk, and perceived fairness on residents’ compliance intention toward neighborhood regeneration projects. Data from 362 local residents (i.e., homeowners) in China were analyzed using partial least squares structural equation modeling. Results show that perceived benefit, perceived risk, and perceived fairness have significant effects on the attitude, subjective norm, and perceived behavioral control, which in turn enhance residents’ compliance intention toward neighborhood regeneration projects. In addition, perceived benefit and perceived fairness also exhibit direct positive effects on residents’ compliance intention. This study develops an enriched model to examine the forming mechanisms of residents’ compliance intention under the context of neighborhood regeneration. It also provides more insights to enhance the decision-making regarding strategies of urban regeneration toward better social sustainability. Specifically, measures should be implemented to increase residents’ subjective norm, perceived behavioral control, and benefit perception. It is also recommended to foster a favorable attitude and to facilitate fairness perceptions of residents.

Food self-sufficiency has long been regarded as essential for understanding and managing urban and regional food systems; however, few studies have examined the food self-sufficiency of megacity regions within a comprehensive framework that distinguishes different types of agricultural land (i.e., arable land, horticultural landscapes, and waters). To fill these gaps, we took the Pearl River Delta as a case study and quantified the foodsheds of different types of agricultural land by calculating the land footprint of food consumption. On this basis, food self-sufficiency is defined as the ratio of available and required agricultural area for regional food demand. The results indicated that the self-sufficiency level provided by the arable land in the Pearl River Delta is low and cannot realize self-sufficiency at the regional and urban levels. The horticultural landscapes can provide self-sufficiency at the regional level, whereas the regions with water cannot, as their foodsheds extend over the boundary of the Pearl River Delta. For arable land, establishing a localized regional food system requires expanding the foodshed size. These findings provide evidence that megacity regions may face increasing difficulties in achieving self-sufficiency in the near future. This research can improve policymakers’ understanding of the sustainability and resilience of regional food systems in megacity regions.