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航班为何总延误? 机场归结三大原因
2017-09-06 14:51:56 中国青年网
本报讯(记者孟环)上午,为期两天的第六届北京全球友好机场总裁论坛召开。记者获悉,为提升航班正常性,目前,首都机场东区新增5个停机位即将投入使用,年内将陆续增加23个停机位;T3航站楼国内23条安检通道的改造已经完成,国际安检通道扩容改造预计10月底可以完成。
首都机场相关负责人表示,国内大型枢纽机场特别是首都机场航班正常率不高,主要有三个方面的深层次原因:
一是空域资源十分紧张。根据民航局发布的最新数据,2017年7月全国航班正常率为50.76%,天气原因占延误航班的58.6%;空域活动原因占延误航班的26%。当前,国家正在大力推进空域改革,希望在不久的将来,中国民用空域资源紧张的局面能够得到有效缓解。
二是时刻资源过度利用。2017年首都机场高峰时段最高起降达到了103架次,远超时刻容量标准的86架次。超容运行带来的就是运行冗余度降低,特殊天气或者突发情况的应对能力不足,导致大面积和长时间延误的可能性大幅增加。
三是地面资源亟待补充。国内大型机场普遍存在“规划跟不上变化、设计赶不上实际”的问题,首都机场2016年旅客吞吐量达9439万人次,超过现有规划设计容量8200万人次约15%,实际起降达到60.6万架次,超设计容量50万架次约20%。超负荷运行带来的主要后遗症,就是基础设施和地面资源的改造和补充,难以跟上发展步伐,难以满足实际需求。尤其是停机位、跑滑系统、安检通道、保障车辆等关键资源的不足,严重制约着首都机场的运行效率提升。J147
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