公路路面損壞破壞類型多樣，其中以坑洞對車輛行駛安全影響最深遠，國內對道路產生坑洞之機制尚未有完整研究及量化資料。目前有關坑洞產生與交通流量和荷重對之關係仍無深入研究，道路受超載重車之影響形成坑洞之相關研究仍然缺乏。本研究以國道1號南部路段98年10月至99年10月間交通資料初步評估交通荷重、交通量等外部因素與坑洞發生間之關係，研究結果發現坑洞面積分佈與重車數及重車分佈有關、新營段區間坑洞發生分佈北向車道發生坑洞面積分佈遠多於南下車道與北上重車數高於南下車道有關、岡山收費站前後坑洞面積分佈變化有顯著差異收費站南端受重車影響較大坑洞次數較多且嚴重性也較明顯，與重車大多集中於收費站南端有關，並建議施工單位依照現場坑洞狀況使用緊急養護、一般養護或大型養護之維修方式。

The road surface damage of various types of destruction, which the holes in the traffic safety impact is the most far-reaching domestic road to produce holes in the mechanism is not yet complete research and quantitative data. The holes generated with the traffic volume and load on the relationship still no in-depth study, the roads by overloading of heavy vehicles to the formation of potholes related research is still lacking. In this study, the National Highway No. 1, the southern section of the traffic data from October 1998 to October 1999 a preliminary assessment of the relationship between the traffic load, traffic and other external factors with potholes, the results showed that the pothole area of distribution of the number of heavy trucks and heavy vehicles related to the distribution of new entrants interval potholes by the distribution of the northbound lane pothole area of distribution of far more than the south lane and go northward number of heavy trucks higher than the south lane about the pothole area of distribution changes in Gangshan before and after the toll booths have significant differences in the southern end of the toll station heavy vehicles affect more and more obvious seriousness of the number of large potholes, and heavy trucks are mostly concentrated in the southern end of the toll station related, and suggested that the construction unit in accordance with the site pothole situation of emergency conservation, conservation or maintenance of large-scale conservation.

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