To explore the role of learning experiences, sense of accomplishment, and satisfaction in road and bridge engineering courses for optimizing teaching quality evaluation, this study collected data through questionnaires, extracted key influencing factors using principal component analysis, and constructed a comprehensive evaluation model via ridge regression. Findings reveal that student learning engagement is the primary determinant of learning experience; instructor teaching commitment indirectly influences student engagement through empowerment; sense of accomplishment primarily stems from process-oriented experiences such as skill development and problem-solving; while satisfaction is directly driven by teacher-student relationships and instructional content quality. The model further indicates that learning experience and sense of accomplishment mutually reinforce each other to jointly influence satisfaction, with learning experience exerting a more significant direct impact.