Comparing indoor and outdoor network models for automatically calculating turns

Ann Vanclooster, Nico Van de Weghe, Veerle Fack, Philippe De Maeyer
2014 Journal of Location Based Services  
The goal of this paper is to compare several indoor and outdoor network models for wayfinding, on their suitability for automatically calculating turns. Automatic turn calculations are of relevance in providing improved cognitive algorithms for route guidance, as it has been widely recognized that routes with minimal angular deviations are easier to follow. It is demonstrated that the currently available indoor network models not allow accurate calculation of the number of turns along a path,
more » ... ile the common outdoor route networks do. This discrepancy is found to be rooted in an inconsistent definition of indoor decision nodes which in turn is linked to the inherent differences in space structure between indoor and outdoor environments. Additionally, it is proven that these also have a major influence on the generation of accurate indoor route instructions. Recommendations for future research within the context of both turn calculations and verbalizations of directional changes are made, as well as in the broader context of indoor spatial analyses.
doi:10.1080/17489725.2014.975289 fatcat:5zbbcnft4jel5k3e4nuepoh4gi