LIU, Yusen. Multi-dimensional Evaluation of Beijing Tongzhou Sub-Center and Downtown Area Commuter Rail Optimization Project (2023–2025): Case Study of Metro Line 6 Frequency & Hub. Scientific Journal Of Humanities and Social Sciences, [S. l.], v. 8, n. 5, p. 6–16, 2026. DOI: 10.54691/fgmqx484. Disponível em: https://bcpublication.org/index.php/SJOHSS/article/view/9313. Acesso em: 16 apr. 2026.