Two Runways at Xianyang Airport Put into Mixed-Dual Operation

In mid-December of 2012, the runways at Xi'an Xianyang International Airport (Xianyang Airport) officially began mixed-dual operation, which means the two runways at Xianyang Airport can now independently accommodate takeoffs and landings of flights.

The Xianyang Airport's phase II project was put into operation in May of 2012. To guarantee safe and steady operation of Xianyang Airport during the initial stage while Runway II was being put into operation, one runway was used for the landings of flights and the other was used for takeoffs of flights. The flight support capability of Xianyang Airport grew continuously. Aircraft had to travel long distance between the two runways before taking off, which led to a lower flight regularity rate and restricted the operational support rate of Xianyang Airport. To efficiently improve the flight volume, reduce flight delays and make full use of the two runways, according to the Control & Insurance Plan for Mixed-Dual Operation of Two Parallel Runways Navigated by Instruments at Xi'an Xianyang International Airport and under the unified conduct of the Northwest Regional Administration of the CAAC, Runway I and Runway II at Xianyang Airport were put into trial operation for Mixed-Dual usage. The first operational trial model is to utilize one runway for landings and two for takeoffs; the second operational trial model is to use one for takeoffs and two for landings and the third operational trial model is using both two for landings and takeoffs. The trial operations for all three models were successful. After the successful trials of the three operational models, Xianyang Airport and the Northwest ATMB jointly handed in the Referendum on the Mixed-Dual Operation of Two Parallel Runways Navigated by Instruments at Xi'an Xianyang International Airport and received an approval from the CAAC in December of 2012.

2012年12月中旬，西安咸阳国际机场双跑道混合运行正式实施，此举标志着咸阳机场两条跑道可以同时独立起降航班。

咸阳机场二期工程于2012年5月正式投运，为确保投运初期安全平稳运行，机场采用了两条跑道一起一降的隔离运行模式。随着咸阳机场空地运行保障能力的不断提高，航空器在南北飞行区间滑行时间长、航班正常率较低成为制约咸阳机场运行保障率的瓶颈。为有效提高航班量，减少航班延误，尽可能发挥双跑道优势，按照《西安咸阳国际机场平行跑道同时仪表运行管制保障方案》安排，2012年10月在民航西北地区管理局的统一指挥下，咸阳机场南、北两条跑道进行了两起一降、两降一起、双起双降等混合运行模式的试飞工作，取得了圆满成功。试飞完成后，咸阳机场和西北空管局联合行文向民航局提交了《关于西安咸阳国际机场实施平行跑道同时仪表运行的请示》，并于2012年12月得到了民航局的同意批复。