休閒遊憩中，遊客的不當行為是降低遊憩體驗的重要因素之一。管理單位因無法在場內中管制或舉發，因此常藉由告示牌試圖導正與提醒遊客之行為。然告示牌是否真有其效用，相關文獻有限。本研究主要目的是為探討環境暗示、告示牌內容及告示牌色彩對遊客不當行為意向之影響。本研究以擎天崗遊客跨越欄杆觀賞水牛活動為例，依環境暗示、告示牌內容及告示牌色彩，設計10種不同情境，並將所獲得資料進行分析。驗證結果發現，環境暗示會影響遊客的行為，且已有不當行為的區域，易誘發後續遊客的不當行為。另研究也發現告示牌內容與色彩確實能有效約束遊客的行為，且教育性告示牌及藍色之色彩是較能有效防範遊客不當行為。

A pain point for managers of recreational areas is inappropriate behaviors by visitors, which further influence onlookers’ recreational experiences. A common approach to deterring inappropriate behaviors is setting up warning signs. Research on the effectiveness of such signs and which types of information content and color usage have a stronger impact remains limited. Thus, this study aims to explore if environmental cues as well as the content and color of warning signs deter visitors’ intention to engage in inappropriate behaviors. Using Yangmingshan National Park in Chingtienkang, Taipei, Taiwan, as a case study, this research examines behaviors toward a handrail safety sign installed between a visitor viewing area and wild buffalos. A total of 10 questionnaires with different hypothetical scenarios were designed. The results suggest that environmental cues, such as a handrail crossing sign, significantly reduce visitors’ intention to reach across the handrail. Others are prone to follow the warning if one person does not follow the warning. Finally, warning signs with educational statements against a blue background have a stronger impact on deterring respondents’ intention of inappropriate behavior.