量化道路人手孔對鋪面平坦度之影響

Quantification of Effect of Manholes on Pavement Smoothness

陳建旭(Jian-Shiuh Chen) ； 王慶雄(Ching-Hsiung Wang) ； 陳景文(Jing-Wen Chen) ； 張孟孔(Meng-Kung Chang)

《中國土木水利工程學刊》 22卷2期 (2010/06) Pp. 205-213

https://doi.org/10.6652/JoCICHE.201006_22(2).0008

摘要

道路管理機關以行車品質為首要目標之一，本研究以理論推導為基礎，配合現地試驗道路鋪築，以高低平坦度儀及滾動式平坦度儀進行現地資料量測，藉由經過5年量測資料整理，建立平坦度度績效預測模式。首先，以成長函數解釋鋪面平坦度劣化趨勢；接著，提出方法論量化人手孔對鋪面平坦度影響程度，分析在鋪面養護門檻值情況下，因人手孔存在導致鋪面使用年限減少，應用成長函數可解釋鋪面平坦度劣化趨勢，經過理論分析，可轉化以劣化值（DV）作為衡量平坦度劣化程度之指標。在鋪面存有人手孔者，DV較大表示平坦度劣化嚴重鋪面使用（養護）年限較短；反之，DV較小者表示劣化輕微鋪面使用（養護）年限可較長。進一步利用生命週期成本合理估算人手孔導致鋪面平坦度過早破壞，而需提早支出之額外養護經費，公路用地使用費隨著平坦度劣化要加收費用。該額外費用合理地列入公路用地申請費內，使得道路養護經費可獲得有效挹注。

關鍵字

人手孔 ； 平坦度 ； 劣化值 ； 生命週期成本

並列摘要

Pavement roughness is a key factor in determining highway user satisfaction. Manholes on the highway surface are one of primary factors affecting the pavement smoothness. This paper is to quantify the effect of manholes on pavement smoothness. A 2-km road segment on a recently constructed highway was chosen to measure pavement smoothness using a Hi-Lo detector and an inertial profiler. Data collected over a five-year period of time were analyzed to develop the smoothness prediction model and to evaluate pavement distress around manholes. A growth function was developed to explain the change of pavement smoothness. The deterioration value (DV) was applied to perform the life-cycle cost analysis, and to estimate the maintenance cost according to premature pavement failures that might result from manholes. The existence of manholes was shown to shorten the pavement service life with an increasing DV. Furthermore, a life-cycle-cost analysis (LCCA) was conducted to take into account the effect of pavement distance on the maintenance cost. According to LCCA, a surcharge fee was proposed to compensate the increase in the maintenance budge due to the pavement failure related to manholes.

並列關鍵字

manhole ； smoothness ； deterioration value ； life-cycle cost analysis