The development of new anti-drag devices appears as an efficient solution to reduce the risk of dragging a passenger caught outside the train during passenger door closing sequence. Where train doors are only by the driver operated, the expected improvement of safety, offered by a new device must be evaluated and balanced with possible impacts on train regularity, particularly for urban areas with high density traffic. To test such solution under real conditions, without running the risk of disrupting the day-to-day operation of commuter trains, the implementation of a test in commercial service enabling video recording of the contexts in which a passenger access door anti-drag seal is triggered seemed particularly appropriate. By providing unprecedented information on detection situations, this experiment demonstrated the expected performance of the product, and made it possible to assess its impact on rail operations, which could be transposed to larger-scale equipment.