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應用藍幕技術探討溪頭自然教育公園中步道之動態擁擠知覺
Applying Blue Screen Keying Technology to Explore Dynamic Crowding Perceptions of the Xitou Nature Education Area Trail
顏宏旭、吳家穎
Hung-Hsu Yen, Jia-Ying Wu
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【摘要】
本研究以Manning之擁擠模型為基礎，運用藍幕攝影及後製技術來模擬不同人數、間距與遭遇次數之動態場景，藉此量測受測者在不同情境下之擁擠感。研究目的為：壹、運用動態影像模擬方式探討遊客在不同的流量下的擁擠感。貳、探討不同數量人群所需之空間，用以擬訂最佳之流量控管方式。研究結果發現，分流成小群體通過會較一大群體通過時降低擁擠感，其中又以4人團體，間隔12公尺的情況接受度最佳；在群體間距對擁擠的接受度上，測得2人團體間距至少須5.25公尺；5人團體間距至少須12公尺；10人團體間距至少須30公尺。在經營管理策略上，研究結果可以提供管理單位在動態下，為行人流動的人潮管控上提供最基本的參考數據。
Based on Manning's crowding model, we adopted chroma key compositing and a post-production technique to simulate pedestrians' dynamic flow under different circumstances to measure crowding perceptions. The main purposes of this research were: I. to use a post-production technique to simulate different pedestrian flow and to measure people's crowding perceptions; II. to explore better flow control and interval spacing for future management. The results showed that for the same visitor numbers, a large group of visitors passing made people feel more crowded than when they were divided into several smaller groups of visitors. In particular, the distance between two four-people groups should be at least 12 meters. The acceptable interval distance was found to be at least 5.25 meters for a group of two; at least 12 meters for a group of five; and 30 meters for a group of 10. The results may provide basic flow control information for future management units to control pedestrian flow.
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【關鍵字】
擁擠；藍幕攝影技術；行人流動
Crowding; Chroma key compositing; Pedestrian flow control
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