I would like to ask you for fill in a survey we have developed about mobility tracking applications for smart phones. It will take you only 10-15 minutes to complete and it will be of great help in our currently ongoing research.

Let me give you some general information about the survey. Mobility tracking applications have the goal of automatically recognising where you were and how did you get there - i.e. which transportation modalities do you use. Such applications already exist on the market and they have different approaches to the recognition and especially the visualisation process. On the other side, our own experience with real users of such applications have shown that they have varying perceptions of the accuracy - e.g. for some showing a different, but close vehicle (e.g. BUS instead of CAR) is perfectly OK, while at the same miscalculating the travelled distance by only 5% is unacceptable.

This survey has been developed to analyse this human accuracy perception. It is anonymous and will be used to design and develop a new metric on human perceived accuracy for mobility tracking applications.

If you which more information about the project and our initial results or would like to discuss the issue with us, please do not hesitate to contact me directly.

Thank you very much for your time and effort! And here is the link to the survey:

https://docs.google.com/forms/d/1fLWOuBxsa-0pdBJ4CaT9C2tophXLILJiBrZTFLdQZfw/viewform