Study on Effort of Attention Allocation for Tractor Drivers in Head-Up Display

When working in the field, tractor drivers need to monitor various information such as surrounding environment, machinery, tools, etc., which leads to high mental workload of the driver during operation. In order to optimize the design of the cab display interface and reduce drivers’ mental workload, it is necessary to study the attention allocation of tractor drivers. In this paper, one influencing factor of attention allocation, i.e. effort, is studied. By investigating the response time and difficulty level in attention re-allocation, a novel method to quantify the effort level is proposed to provide a theoretical reference for cab interface design.