鋪面抗滑能力為影響行車安全主要因素之一，因此針對鋪面抗滑力進行例行性檢測與監控是相當重要的，本研究利用自行開發之智慧型藍光2D Laser CCD鋪面檢測車，於國道三號關西段北上89k-83k外車道收集紋理資料，並與鎖輪式抗滑拖車量測之抗滑值(Skid Number, SN)進行關聯性分析，根據線性迴歸分析結果發現藍光雷射鋪面檢測車於量測時速為90kph時擁有最佳關聯性，相關係數(γ)=0.9為高度正相關；利用遺傳規劃法進行非線性預測其驗證階段之R2=0.7為高度解釋能力，表示於高速量測之紋理值與鋪面抗滑值具高度解釋程度，誤差量評估部分，訓練階段之平均絕對誤差百分比(Mean Absolute Percentage Error, MAPE)為2.75%；驗證階段則降低至2.59%，表示後續若作為預測使用，則可產生較高的準確度。本研究亦探討102年國道一號鋪面抗滑值(SN)與A2類事故傷亡數之相關性分析，根據傷亡數累積事故百分比發現當SN值大於48時至少可避免68%的A2類車禍事故發生率，SN值大於52.5可避免95%的A2類車禍事故發生率，當SN大於56.5時則可避免99.7%的A2類事故，藉由此A2類事故預防率區間訂定一國道鋪面抗滑門檻值，並建構台灣國道事故預防之鋪面抗滑門檻值與鋪面紋理值關聯預測模型。

Pavement skid resistance plays an important role in safety driving. Therefore, the routine inspection and monitoring for pavement skid resistance is very important. This study used the self-developed intelligent Blu-ray 2D Laser CCD pavement inspection vehicle to collect the pavement texture data of outer lane at National freeway No.3 Guanxi section (89k-83k), and analyzed the correlation with the Skid Number (SN) of Locked-Wheel Trailer. The results of linear regression showed that the relevance has its best result at 90kph, the correlation coefficient (γ)=0.9.The results of Genetic Programming (GP) mentioned that the validation R2 is 0.7 which has high explanatory power, it represents that the correlation between pavement skid number and pavement texture by using high speed measurement is highly related. The amount of error evaluation, the Mean Absolute Percentage Error (MAPE) of training period is 2.75%, and validation period decrease to 2.59%, it means that the accuracy is high when used to predict future values.This study also investigated the correlation between pavement skid number (SN) at National Freeway No.1 and the number of A2 class accident casualties in 2013. According to the cumulative percentage of accident casualties, data showed that at least 68% A2 accident incidence can be avoided when SN is greater than 48, and 95% A2 accident incidence can be dodged when SN is greater than 52.5, 99.7% A2 accident incidence can be precluded when SN is greater than 56.5. A threshold of freeway pavement skid number can be set up according to the A2 accident prevention rate, and establish the forecast model between pavement skid number of A2 accident prevention and pavement texture in Taiwan freeway.

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