Abstract
The aim of this study was to develop and experiment with methods for three-dimensional (3D) mobile roadmaps, which adjust the map view automatically based on the speed of a vehicle. A mobile 3D roadmap with no speed-dependent virtual camera control was compared to four mobile roadmaps, which automatically adjusted the following parameters based on the speed of the vehicle: 1) camera height angle, 2) camera distance from vehicle 3) camera height from ground level, and 4) both camera height angle and distance simultaneously. 13 subjects experimented with these implementations in real traffic. The results of the experiment showed that the developed implementations were evaluated highly in terms of navigation support. 9 out of 13 subjects preferred one of the implementations with speed-dependent camera control over the implementation with no speed-dependent camera control. The results suggest that automatic speed-dependent camera control can be a beneficial feature in 3D mobile roadmaps.
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