[{"titre":"Lane splitting policy: Social acceptability of a road safety measure","url":"https://doi.org/10.46298/cst.12252","pubDate":"Thu, 09 Apr 2026 14:03:49 +0200","source":"Les Cahiers Scientifiques du Transport - Scientific Papers in Transportation - Dernières publications","description":"Lane splitting is the practice of riding a powered two-wheelers between lanes when the traffic is slow or vehicles are stopped (Sperley et Pietz, 2010). Although lane splitting is not allowed everywhere in France, it is a common riding practice among motorcyclist drivers. As transport policy is a key driver for promoting sustainable and safe transport, a first experiment (2015-2018) was conducted in eleven departments where a secure form of lane splitting was allowed on highways and urban expressways (Eyssartier et al., 2018). A second experiment is conducted since 2021 in ten new departments with eight specific conditions regulating this practice. The aim of this article is to present the results of this second experiment by analyzing the social acceptability of this road safety policy. This involves studying acceptability and therefore identifying the factors impacting the general attitude towards the measure and the behavioral intention to comply with the rules, based on the Unified Theory of Acceptance and Use of Technology developed by Venkatesh et al. (2003). We performed multiple regressions on several dependent variables: general attitude toward the measure for car and motorcyclist drivers and intention to respect the rules for motorcyclist drivers. Overall, the results show that drivers have a positive general attitude to the rules, and that this attitude is more positive for motorcyclists than among car drivers. No differences were found between experimental departments and control departments. The results indicate that the expected effort factor, which refers to perceived ease, and the efficacy in terms of road sharing, are the most relevant to explain the intention to comply with the measure and the attitude toward the rule. Finally, results enable to define social acceptability and its influence on intention to comply with the rules in the context of public road safety","id":2815882}]