Showing papers on "Turn-by-turn navigation published in 2020"
05 Oct 2020
TL;DR: It is found that users encountered problems riding in the opposite direction to the destination and were often turning around as a result using the ATCF method, and that unsuccessful route progression negatively correlates with user confidence.
Abstract: Visual as-the-crow-flies (ATCF) navigation methods are an increasingly popular alternative to existing turn-by-turn (TBT) navigation for cyclists. To better understand how people use them in everyday navigation and how they cope with the novel navigation method in challenging situations, we studied two main issues posed by ATCF navigation: knowing whether one is on the right route to their destination and knowing whether a turn leads into a dead end or detour. To investigate these two problems, we compared visual ATCF navigation against (1) TBT navigation and (2) an improved ATCF+ navigation system in two successive studies. We found that users encountered problems riding in the opposite direction to the destination and were often turning around as a result using the ATCF method. Using colour cues in the ATCF user interface we were able to reinforce correct route choices. Additionally, we found that unsuccessful route progression negatively correlates with user confidence.
10 citations
10 Sep 2020
TL;DR: While the use of reference-based guidance led to users taking more time to navigate when first receiving it, it boosted their subsequent ability to independently navigate to the same destination in less time, via more efficient routes, and with less assistance-seeking from their phones than either map-based or AR-based turn-by-turn navigation guidance did.
Abstract: Research has shown that turn-by-turn navigation guidance has made users overly reliant on such guidance, impairing their independent wayfinding ability. This paper compares the impacts of two new types of navigation guidance - reference-based and orientation-based - on their users' ability to independently navigate to the same destinations, both as compared to each other, and as compared to two types of traditional turn-by-turn guidance, i.e., map-based and augmented-reality (AR) based. The results of our within-subjects experiment indicate that, while the use of reference-based guidance led to users taking more time to navigate when first receiving it, it boosted their subsequent ability to independently navigate to the same destination in less time, via more efficient routes, and with less assistance-seeking from their phones than either map-based or AR-based turn-by-turn navigation guidance did.
1 citations
TL;DR: Two driving simulator experiments are reported that replicated the effect of the augmentation of landmarks in auditory navigation instructions even when adding a three-week delay between navigation and spatial tasks and varying the degree of detail in the provided landmark information.
Abstract: The augmentation of landmarks in auditory navigation instructions had been shown to improve incidental spatial knowledge acquisition during assisted navigation. Here, two driving simulator experiments are reported that replicated this effect even when adding a three-week delay between navigation and spatial tasks and varying the degree of detail in the provided landmark information. Performance in free- and cued-recall of landmarks and driving the route again without assistance demonstrated increased landmark and route knowledge when navigating with landmark-based compared to standard instructions. The results emphasize that small changes to existing navigation systems can foster spatial knowledge acquisition during every-day navigation.
1 citations
DOI•
14 Oct 2020
TL;DR: In this paper, a turn-by-turn BPM system based on a multi-anode photomultiplier detector is proposed for the Integrable Optics Test Accelerator.
Abstract: The Integrable Optics Test Accelerator is a research electron and proton storage ring recently commissioned at Fermilab. A key part of its beam diagnostics suite are synchrotron radiation monitors, used for measuring transverse beam profile, position, and intensity. So far, this system has used only visible light cameras, which are optimal for orbit measurements but do not provide turn-by-turn temporal resolution needed for beam dynamics analysis. Current electrostatic BPM system, while capable of turn-by-turn acquisition, will be pushed to its limits of accuracy and linearity by the requirements of planned nonlinear integrable optics experiments, and furthermore does not provide transverse profile data. To address these drawbacks, we present in this paper the design of a turn-by-turn BPM system based on a multi-anode photomultiplier detector. Extensive simulations are shown, combining both particle and optics tracking. A potential hardware and readout architecture is described. Statistical and systematic errors are explored. We conclude by outlining the prototype testing plans for run 2 in the fall of 2019, and other future work.