Road traffic deaths and injuries represent a global burden [1]. Despite major advancements in road traffic safety, the prevention of road traffic accidents (RTAs) remains challenging. Parkinson's disease (PD) and multiple sclerosis (MS) are neurological diseases associated with progressive deterioration of cognitive domains and motor functions that are essential for safe driving [2]. Approximately 20,000 people are diagnosed with PD or MS, respectively, in Sweden [3, 4]. Unsafe driving performance was found to be overrepresented in people with PD and MS [5-7]. Among drivers with PD, several explanatory factors have been identified, including motor symptom hindrances, executive dysfunction, divided attention, and drowsiness [2, 8]. In MS, reduced driving ability may be correlated with cognitive deficits, visuospatial inability, and impaired vision [6, 7].