由于预算和结构的限制,政府选择了轻微升级,而不是对蓝山隧道进行重大翻修。 The government chose minor upgrades over major renovations for the Blue Mountains tunnel due to budget and structural limits.

政府决定不对蓝山隧道进行重大升级改造,而是选择因财政和结构限制而进行规模较小、成本效益高的改进。 The government has decided against major upgrades to the Blue Mountains tunnel, opting instead for smaller, cost-effective improvements due to financial and structural constraints. 官员将侧重于维护、加强安全和逐步现代化,如更新信号和更好的排水系统,而不建造新的建筑。 Officials will focus on maintenance, safety enhancements, and incremental modernization like updated signaling and better drainage, without new construction. 这一转变将眼前的效益和业务可靠性置于雄心勃勃的长期项目之上,并反映更广泛的财政现实和基础设施投资的务实做法。 The shift prioritizes immediate benefits and operational reliability over ambitious, long-term projects, reflecting broader fiscal realities and a pragmatic approach to infrastructure investment.