인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
In unattended metros, dwell-time adjustment rebalances headways without changing movement authority, but policies evaluated on historical records may use information that is unavailable at the decision time. This study proposes a retrospective evaluation procedure that replays automatic train supervision (ATS) departure events and restricts the target-headway and follower-departure inputs to records available at each decision time, while the arrival of the controlled train is reconstructed retrospectively. The procedure was applied to 212 days of Incheon Line 2 records to compare a no-adjustment baseline, proportional rules, and proximal policy optimization (PPO) policies under identical replay conditions, constraint filters, and train-test splits. The restricted inputs referenced no later record, and the no-adjustment replay reproduced the recorded departures. PPO slightly reduced headway error relative to the baseline but increased delay and lowered plan adherence, and no advantage over the rule was established. Cumulative shifts caused early departures that stepwise constraint checks missed; blocking them preserved the headway reduction. The procedure exposes such trade-offs and verification limits before field testing.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.