Developing Variable Speed Limit Scenarios for Comparative Analysis of Questionnaire Surveys and Driving Simulations

This study evaluates variable speed limits (VSL) within Intelligent Transportation Systems (ITS) by examining driver responses to external information systems. The research combines driving simulations with questionnaire data to assess the influence of socioeconomic and latent behavioural factors. The experimental procedure comprises four phases: a preexperiment questionnaire, a simulator training session, the main driving simulation, and a post-experiment questionnaire. The study aims to describe the experimental design and present preliminary findings that support the reliability of the study. Initial results indicate varying levels of driver compliance with VSL under different traffic conditions and speed scenarios. These findings highlight the importance of gradual speed transitions, well-placed warning messages, and prior compliance in shaping effective driver behaviour and improving traffic management. In existing networks, implementing VSL often requires retrofitting legacy systems, adapting to established driver behaviours, and overcoming integration challenges with pre-existing infrastructure. As such, this study provides valuable insights for the adaptive enhancement of current road systems and the strategic planning of future smart mobility networks.