Sandra Dietsch

Rail Human Factors: Human-centred design for railway systems

Abstract In our Rail Human Factors approach, we define the human as the starting point for our interdisciplinary research on the design of human-machine interfaces in railway systems. Our research is based on three key issues: understanding the user (operator), evaluating existing systems, and developing and testing new concepts. Furthermore, we develop new methods for evaluation and design of railway systems. In the present paper we explain our approach and give examples for its application.

Gaze direction and driving behavior of drivers at level crossings

ABSTRACT International-level crossing statistics reveal that the majority of accidents at level crossings occur due to human error on the part of car drivers. Often, the rather unspecific description of “attentional deficits” is given as the cause of most accidents. In this study, driving data and eye-tracking data were collected during a standardized driving study. Using a research vehicle, the behavior of 24 participants was observed while approaching two level crossings (one with passive protection, the other with active light-signal protection). It turned out that on the last 300 meters of the approach toward level crossings, all of the drivers detected and fixated upon at least parts of the protection layout at both level crossings. Nevertheless, only one third of all participants subsequently derived the right reaction and checked the rails for an oncoming train. Two thirds of the participants did not direct their attention toward the rail tracks. With such deficient gaze behavior, visual detection of a potentially oncoming train is difficult. In addition to the maladaptive gaze patterns, inattentive drivers decelerated significantly less while approaching both level crossings than attentive drivers.