Research review on cooperative decision-making for vehicle swarms in vehicle-infrastructure cooperative environment

The research status of cooperative decision-making of vehicle swarms at home and abroad was analyzed from the aspects of mechanisms, methods, and typical application scenarios of cooperative decision-making for vehicle swarms in vehicle-infrastructure cooperative environments. Considering the different cooperative decision-making mechanisms of vehicle swarms, the research on two kinds of decision-making mechanisms, namely the centralized one and the distributed one, was systematically sorted out. Regarding the diversity of cooperative decision-making methods for vehicle swarms, the advantages and disadvantages of different decision-making methods were comparatively analyzed with the optimization-based and heuristics-based decision-making methods as the thread. As for the different application scenarios of cooperative decision-making for vehicle swarms, the theories and research on the cooperative decision-making for vehicle swarms were comprehensively analyzed in various application scenarios, such as ramps, intersections, road sections, and road networks, Concerning the progress of typical projects on the cooperative decision-making for vehicles at home and abroad, the tasks, construction, and implementation of representative projects on the cooperative decision-making for vehicle swarms in China, the United States, Japan, and Europe were sorted out, respectively. The future development trend of cooperative decision-making for vehicle swarms in vehicle-infrastructure cooperative environments was proposed from the three aspects of system structure, universal model, and demonstration scenarios. Research results show that the centralized cooperative decision-making mechanism for vehicle swarms can be employed to improve the vehicle traffic performance in local areas, whereas the distributed cooperative decision-making mechanism for vehicle swarms is conducive to promoting the global traffic operation. The optimization-based cooperative decision-making method for vehicle swarms can maximize the decision-making effect in specific scenarios, while feasible decision-making effects can be obtained by the heuristics-based cooperative decision-making method for vehicle swarms in most scenarios. Due to the different complexities of the cooperative decision-making problem for vehicle swarms in different scenarios, targeted modeling under a unified framework is required. The research results can provide a reference for the management and control of new hybrid traffic systems in vehicle-infrastructure cooperative environments. 6 tabs, 9 figs, 50 refs. © 2022 Chang'an University. All rights reserved.