ADAC Symposium Glare in Road Traffic

An ADAC survey of motorists conducted at the end of 2023 showed that glare in road traffic affects a large proportion of road users. Parallel surveys in other European countries came to a similar conclusion. In the end, around three-quarters of all respondents were in favour of adapting the legislation so that there is less glare. On 25 and 26 March 2025, the ADAC organised a symposium on glare in road traffic to discuss the factors that cause glare in road traffic through lectures and discussions. The aim was not neccessarily to present the latest research results, but to compile and communicate results and findings in a way that is easy to understand and to overcome the `language barriers' between scientists, technicians and decision-makers. The presentations were interspersed with discussion rounds. The aim was to understand glare from a number of perspectives in order to find solutions. The symposium was divided into the following topics: - Survey results and accident data - How vision works and the biological and medical processes involved in glare - Physical and technical causes of glare - Measures to reduce glare In addition, measurements of luminance and colour spectrum were carried out on current vehicle models and traffic situations in which glare can occur were simulated.