HTM is constantly working to improve its timetable, and the HTM panel is a significant source for this. This can be done more efficiently by linking your journey evaluation with your travel behaviour (such as when you travel, on which lines and in which vehicles). Only with your consent, of course. HTM requires your OV-chipkaart number for this. This information is not linked to other personal data (such as name and address), will not be shared with third parties, and the results cannot be traced back to an individual. This information is stored by HTM and Citisens for a maximum of 18 months, and is exclusively used to improve the HTM service.