🤖 AI Summary
To address the high incidence of accidents involving vulnerable road users—particularly motorcyclists—this paper proposes a riding-intent prediction method enabling proactive hazard warnings prior to high-risk maneuvers. Methodologically, we establish the first standardized, multi-city riding-intent prediction benchmark; integrate graph neural networks, temporal convolutions, and vision Transformers; and introduce a novel attention-guided joint trajectory-action decoding mechanism. We further propose intent uncertainty modeling and a spatio-temporal–semantic alignment evaluation protocol. Experimental results demonstrate that the winning solution achieves 89.7% intent recognition accuracy on the multi-city test set—outperforming the baseline by 12.3 percentage points—and significantly enhances autonomous driving systems’ understanding of rider behavior and decision-making safety.