## 3 Results
### Design Optimization Results  
Based on the initial design proposal, we have fully optimized the R-barricade design by incorporating the results of eye-tracking experiments, principles of human vision, and safety product design principles. Experimental data showed that high-contrast colors and dynamic signaling systems significantly improved driver attention, which guided us to further strengthen these elements in the design. The optimized design, shown in Figure 7, consists of a mobile charging station and an interactive barricade. This design not only enhances the mobility and deployment efficiency of the barricade but also ensures the continuous operation of the interactive features through an integrated charging system. Moreover, the optimized R-barricade includes several innovations in its interactive aspects, as follows:  
* Intelligent sensing and dynamic feedback system: In the optimized design, the R-barricade is equipped with a network of intelligent sensors that can monitor environmental conditions in real time (such as light, temperature, and wind speed) and automatically adjust the brightness, color, and frequency of the warning signals. For example, when light is insufficient, or visibility is low, the LED lights will automatically increase in brightness to ensure visibility at night or during adverse weather conditions. The sensors can also detect the speed and direction of approaching vehicles and trigger dynamic signals through rapidly flashing LED lights and an audible alarm system to alert drivers of the barricade and prompt them to take appropriate actions;
* Application of eye-tracking technology: We extensively applied eye-tracking technology not only to evaluate the design effectiveness of the barricade but also to optimize the interaction features. Eye-tracking data helped us identify and improve the key visual elements of the barricade, ensuring that it quickly captures the driver's attention as they approach. This data-driven optimization significantly enhances the warning effect of the barricade and improves driver reaction times;  
Figure 7: Interactive roadblock design. They should be listed as (**a**) the interactive roadblock features a collapsible vertical structure and embedded fulcrum design; (**b**) the combined interactive roadblock consists of a solar panel, reflective band, magnetic charging pile, and hanging pile; (**c**) mobile charging pile. * Remote monitoring and management: The R-barricade is equipped with a wireless communication module that allows real-time connectivity with the traffic management center. Through the remote monitoring system, management personnel can instantly monitor the status of the barricade, receive abnormal alerts, and adjust the settings of the barricade as necessary. This remote management function not only increases operational efficiency but also ensures a rapid response in emergency situations;
* Self-sustaining energy and eco-friendly design: To achieve self-sustaining energy, the optimized design integrates a solar power system. The photovoltaic panels supply power to all interactive components, ensuring the barricade operates under any conditions. Additionally, eco-friendly polyvinyl chloride (PVC) material was selected [55], which has high rigidity, tensile strength, and elasticity, providing protection to vehicles and workers in high-speed impacts and reducing the risk of secondary injuries. Compared to traditional materials, this design significantly improves the stability and durability of the barricade;
* Airbag system: The optimized design also incorporates an airbag system within the top interactive module, which can be deployed immediately upon impact detection. This innovative design effectively protects the components inside the interactive module and prevents injury to vehicles and construction workers, a feature lacking in traditional barricades. Based on the eye-tracking data mentioned earlier, the high-contrast colors and dynamic signaling systems significantly enhanced driver attention.