Design for Indoor Navigation: CROSSFLOW for Multiple Simultaneous Pedestrians in Public Spaces.

The provision of navigational support for multiple simultaneous pedestrians visiting unfamiliar complex indoor pubilc spaces is challenging. The conventional methods (architectural design, signage, maps, and verbal and written instruction) and many mobile and pervasive computing approaches suffer one or more drawbacks. We developed CROSSFLOW, a Crossmodal Display to address the problems through exploiting human multimodal perception, especially crossmodal interactions and utilizing a low-cognitive load combination of public and personal displays. We identified in the design process that CROSSFLOW could facilitate navigation within an unfamiliar complex indoor environment, support multiple simultaneous pedestrians accessing personalized navigational information without resorting to location tracking and impose lower mental workload demands on users. This paper mainly presents the design principles of CROSSFLOW and the design spaces of the components of CROSSFLOW so as to inspire people to come up with the better design of the system or the better solutions to the problems associated with indoor navigation.