Road vehicles; Passenger cars; Driver hand control reach

This technical specification defines the permissible activity range for a driver's hand controls within passenger cars. It establishes a standardized spatial envelope, ensuring that essential operational interfaces are positioned to allow effective and safe access without requiring excessive stretching or awkward postures. The scope encompasses various control mechanisms typically managed by the operator, including switches, levers, and pedals, to promote ergonomic consistency across the automotive industry. By delineating specific boundary limits relative to the driver's seated reference point, the document aims to minimize driver fatigue and reduce the likelihood of operational errors during vehicle maneuvering. These guidelines are designed to accommodate the majority of adult drivers, considering average anthropometric data. The defined parameters facilitate design uniformity for manufacturers, enabling them to develop cockpits that align with established safety and usability principles. Adherence to these spatial requirements supports the integration of driver control systems that are intuitive and responsive. Ultimately, the framework contributes to overall vehicle safety by ensuring that critical functions remain readily accessible within a natural driving position, thereby enhancing the interaction between the human operator and the vehicle's control interface.