無號誌路口為缺乏交通號誌控制之道路交叉口，汽機車行經此類型路口，駕駛人需要遵守道路交通安全規則並與其他車輛或行人共同協調通行。然而，用路人通常對於無號誌路口優先通行權的觀念理解不足，使行人穿越行為更複雜和隨意。行人與車輛之間的衝突是許多交通事故常見的原因，行人在無號誌路口的不當穿越行為更可能導致交通事故與傷亡，進而影響整體交通的運行效率和安全性。近年國內多處路口進行3E之改善，盼望將「車本交通」轉至「人本交通」，顯示行人安全為我國重點道安議題。本研究探討行人於無號誌路口穿越行為之特徵和影響因素，探討行人因何種因素影響而產生非安全穿越行為。並同時探討行人與車輛互動特性，了解無號誌路口車輛停讓行為。
本研究實地觀測及路口攝影觀測行人穿越行為特徵與人車互動特性，分析之路口分別為有行人穿越線之T字路口、Y字路口、四岔路口、多岔型無號誌路口，並將蒐集到之特徵及數據透過統計方法進行分析。本研究分析行人穿越路口行為，含行人特徵（性別、年齡）、分心行為（飲食、交談、使用手機等）、非安全穿越行為（是否行走於行人穿越線及穿越前是否觀察交通等）。並探討行人步行速率差異，分析不同性別、族群行人於不同類型無號誌路口穿越行為特性。透過分析結果了解影響行人穿越無號誌路口之因子，進一步評估分心行為影響非安全穿越行為之程度。同時利用現地觀測分析路口車輛停讓行為，探討無號誌路口行人與車輛互動特性。
本研究經數據分析後，得出以下重要結論：（1）穿越路口時與同行者交談、使用手機易導致行人穿越前未觀察交通、穿越時未持續觀察交通；（2）行人特徵與分心行為、非安全穿越行為具顯著相關性；（3）路口車輛非停讓行為比例高，尤其機車不易停讓行人，且機車右轉、直行的停讓比例最低。研究結果能供政府交通相關機構改進策略之參考，針對不同行人特徵制定不同教育及宣導活動，以實現行人、車輛和道路之平衡協調。另建議加強執法取締路口未停讓行人之違規行為，從而提升我國之行人安全，減少無號誌路口行人事故發生。

Unsignalized intersections, lacking traffic signal control, require vehicle drivers to adhere to road traffic safety regulations and coordinate with other vehicles and pedestrians. However, road users often misunderstand the right-of-way at these intersections, complicating pedestrian crossing behavior. Conflicts between pedestrians and vehicles frequently cause accidents, with inappropriate pedestrian crossing behavior at unsignalized intersections increasing the risk of accidents and injuries, thus affecting overall traffic efficiency and safety. Recent 3E (Engineering, Education, Enforcement) improvements at multiple intersections in Taiwan aim to shift from "Vehicle-Oriented Traffic Environment " to "Humanity-Oriented Traffic Environment," highlighting pedestrian safety as a key traffic safety issue. This study examines the characteristics and influencing factors of pedestrian crossing behavior at unsignalized intersections and the interaction between pedestrians and vehicles, focusing on vehicle yielding behavior.
The study uses field observations and video monitoring to analyze pedestrian crossing behavior and pedestrian-vehicle interactions at three-leg, four-leg, and multiple unsignalized intersections with crosswalks. Statistical analysis is performed on the collected data, examining pedestrian characteristics (gender, age), distraction behaviors (eating, chatting, using mobile phones), and unsafe crossing behaviors (using crosswalks, observing traffic). The study also analyzes pedestrian walking speeds by gender and demographic groups at different types of unsignalized intersections. Factors influencing pedestrian crossing behavior and their significance are identified. Field observations is used to analyze vehicle yielding behavior and pedestrian-vehicle interactions at unsignalized intersections.
Key findings include: (1) conversations and mobile phone use while crossing lead to pedestrians failing to observe traffic; (2) significant correlations exist between pedestrian characteristics, distraction behaviors, and unsafe crossing behaviors; (3) The proportion of vehicles not yielding is high, especially motorcycles, which are less likely to yield to pedestrians. The yielding rate is lowest for motorcycles turning right or going straight. These findings can guide government traffic agencies in designing targeted educational and promotional activities to achieve balanced coordination among pedestrians, vehicles, and road infrastructure. Enhancing law enforcement against non-yielding behaviors can improve pedestrian safety and reduce accidents at unsignalized intersections.

內政部警政署警政統計查詢網，擷取時間：2023年10月10日，網址：https://ba.npa.gov.tw/npa/stmain.jsp?sys=100。
交通部統計查詢網站，擷取時間：2023年10月12日，網址：https://stat.motc.gov.tw/mocdb/stmain.jsp?sys=100&funid=a3301。
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