本研究依據TERPs建立一使用左右定位台(localizer)作為助導航設施的儀器進場程序(Instrument Approach Procedure，IAP)參數化設計模式，簡化以往人工計算過程，將結果3D化，消除人工繪圖之誤差。即時因應不同方案而讓使用者以更有效率方式進行程序評估與調整。本模式同時結合Google Earth地形及地表景觀，利於將抽象IAP以更寫實方式向他人展現與說明。
本模式分成三大模組：「程序設計模組」、「地形地物模組」以及「程序評估模組」；並均通過驗證。「程序設計模組」提供在TERPs規範範圍內，可依使用者考量做最初、中間、最後以及誤失進場等階段之程序型式、範圍長度、所需下降高度等最有利組合；「地形地物模組」除可建立地面障礙物資訊外，並可建立跑道與助導航設施位置，以視覺化瞭解彼此相對位置及與IAP間關係；「程序評估模組」則以數學化方式精確計算障礙物與IAP之關係，並能視覺化瞭解障礙物穿越程序OCS之點，有助於使用者效率化、視覺化評估OCS是否被障礙物穿越。
本研究最後透過蒐集高雄機場27跑道使用LOC進場程序為例來探討本模式計算正確性。「程序設計模組」計算最大誤差均不超過0.001呎，判定驗證通過；「程序評估模組」計算最大誤差亦不超過0.002呎，亦判定驗證通過。因此，本模式計算正確性得以確立。

This study develops a parametric model to formulate the instrument approach procedure (IAP) based on TERPs criteria, using localizer as the reference facility. This model features the workload reduction of manual calculation, 3D demonstration of IAP, and the error free from manually drafting. Further, users are capable of evaluating the various IAPs and adjusting it more efficiently. Besides, it enables the results of IAP formulation to be displayed on Google Earth. With the appearance of terrain and topographic features, more vivid exhibition of IAP would be achieved.
This model includes three modules: “Procedure Formulation Module”, “Topography Module”, and “Evaluation Module”. “Procedure Formulation Module” helps users build the parameters for all segments (initial approach, intermediate approach, final approach and missed approach) of IAPs based on TERPs criteria. The parameters include alignment, required height descendence and length, etc. “Topography Module” is employed to construct the terrain of the earth and related topographic features, in addition, to visualize the relative positions of runway and the IAP to the reference facility as well. “Evaluation Module” provides the precisely calculated results of the gap of the obstacles and IAP, and the visual display of the penetrating spots. It allows users to efficiently and visually evaluate whether any obstacle penetrates the OCS or not.
To verify the correctness of this model, it is tested with the IAP approved in 2005 of Kaohsiung International Airport using RWY27. The maximum error of “Procedure Formulation Module” not exceeds 0.001 ft; therefore, this module is test valid. Besides, the maximum error of “Evaluation Module” not exceeds 0.002 ft; therefore, this module is test valid as well. Therefore, this model is tested valid.

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