DRY AND WET STATE DISCRIMINATION AND THE APPLICATION OF WATER/SNOW ACCUMULATION MODEL ON THE ROAD SURFACE OF EXPRESSWAY
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摘要: 为了探明公路路面积水(积雪)过程和干湿状况的变化及其气象因子的影响，以江苏省金坛试验基地试验路段的道路气象数据作为模型输入数据，利用改进的Sass道路积水物理模型对3次降雨(雪)过程中的道路积水量进行模拟，通过对模型模拟结果的分级和与仪器记录、人工观测结果的对比，验证模型模拟路面状况的准确性，并探讨了气象因子对路面积水量的影响。研究结果表明：(1) 改进的Sass模型可用于对道路干湿状况的模拟，且准确性较高，可推广到高速公路路面状况的实时监测和预报；(2) 排水过程中，径流和蒸发在不同时期对排水量的贡献率差异较大，从总量上讲，径流对排水起了主要作用；(3) 气象因子对道路积水的影响主要体现在降水量直接影响道路积水，而其他气象因子则通过对蒸发量的影响来间接影响积水量。Abstract: In order to ascertain the process of road water (or snow) accumulation, the change of road surface dry-wet conditions and the influence of meteorological factors on them, in this paper, a series of the observed data on the process of road water(or snow) accumulation and the records of road surface dry-wet condition change at Jintan Experimental Base was used as the input data of the modified Sass model, a physical model initially only for the calculation of water accumulation on road surface, was modified to be applicable for the quantitative calculation of the water and snow accumulation on the road surface of an expressway by the change of some physical parameters. This model was used to the simulations of road surface water (snow) accumulation for two rainfall processes and a snowfall process in this paper. Based on the classification on the simulation results and the comparisons between the classification data, the records of automatic instruments and the artificial observations, the accuracy of the model on the simulations of road surface dry-wetconditions was verified and the influence of the meteorological factors on the road surface water (snow) accumulation was discussed. The results showed as follows: (1) The modified Sass model was applicable to the simulation of road surface dry-wet condition with a high accuracy and it can be popularized and applied to the real-time monitoring and forecasting of road surface condition on an expressway. (2) In the process of water drainage on the road surface, the difference between the contribution rate of runoff and the contribution rate of evaporation was great in different periods. In terms of total quantity, the runoff played a main role on drainage. (3) The influence of meteorological factors on the road surface water (snow) accumulation was reflected on the direct impact of rainfall(snowfall) in the road surface water (snow) accumulation but the other meteorological factors had relative indirect impacts on the road condition through the effects of evaporation.
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图 1 2015年1月的3次降雨(雪)过程中降水量和路面积水量随时间的变化
a. 13—14日降雨过程；b. 24—25日降雨过程；c. 27—31日降雪过程。Wl：液态积水量；Ws：固态积水量；Pr：分钟降雨量；Ps：分钟降雪量。下同。
图 2 2015年1月的3次降雨(雪)过程蒸发量和气象要素随时间的变化
a1、a2、a3. 13—14日降雨过程；b1、b2、b3. 24—25日降雨过程；c1、c2、c3. 27—31日降雪过程。E：蒸发量；R：太阳净辐射；Ta：空气温度；Tr：路面温度；Trb：路基温度；RH：相对湿度；V2：2 m处风速，下同。
图 3 2015年1月的3次降雨(雪)过程的蒸发、径流及其对排水贡献率随时间的变化
a1、a2. 13—14日降雨过程；b1、b2. 24—25日降雨过程；c1、c2. 27—31日降雪过程。
r：径流量；Dc：排水贡献率；Ec：蒸发对排水贡献率；rc：径流对排水贡献率；下同。表 2 2015年1月的3次降雨(雪)过程的排水贡献率
降雨(雪)过程 总降水量
/mm总排水量
/ mm径流贡献率
/ %蒸发贡献率
/ %13—14日 13.5 13.3 90.7 9.3 24—25日 5.3 5.0 78.8 21.2 27—31日 9.6 9.1 75.5 24.5 
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[1] 唐延婧, 裴兴云.贵州交通站资料应用于山区高速公路低能见度研究[J].热带气象学报, 2015, 31(2): 280-288. [2] 王佳, 郭根华, 罗梦森, 等. WRF模式对沪宁高速公路浓雾的模拟与检验研究[J].热带气象学报, 2014, 30(2): 377-381. [3] 王佳, 缪启龙, 严明良, 等.沪宁高速公路一次冬季浓雾过程的数值模拟分析[J].热带气象学报, 2011, 27(5): 723-730. [4] 冯涛, 李迅, 丁德平, 等.高速公路不同路况下的安全限速[J].气象科技, 2012, 40(5): 865-868. [5] SCHLOSSER L. Traffic accidents and road surface skidding resistance[C]//Transportation Research Record, Second International Skid Prevention Conference, Columbus Ohio, United States, 1977: 11-20 [6] BURCHETT J L, RIZENBERGS R L. Frictional performance of pavements and estimates of accident probability[R]. Pavement Surface Characteristics and Material, 1982, 763: 73-97. [7] EISENBERG D. The mixed effects of precipitation on traffic crashes[J]. Accident Analysis & Prevention, 2004, 36(4): 637-647. [8] 罗慧, 李良序, 胡胜, 等.公路交通事故与气象条件关系及其气象预警模型[J].应用气象学报, 2007, 18(3): 350-357. [9] 李长城, 刘小明, 荣建.不同路面状况对路面摩擦系数影响的试验研究[J].公路交通科技, 2010, 27(12): 27-32. [10] CREVIER L P, DELAGE Y. METRo: A new model for road-condition forecasting in Canada[J]. J Appl Meteo, 2001, 40(11): 2 026-2 037. [11] SASS B H. A numerical model for prediction of road temperature and ice[J]. J Appl Meteo, 1992, 31(12): 1 499-1 506. [12] JANSSON C, ALMKVIST E, JANSSON P E. Heat balance of an asphalt surface: Observation and physically-cased simulations[J]. Meteo Appl, 2006, 13(2): 203-212. [13] 张德山, 丁德平, 穆启占, 等.北京奥运交通路段精细预报[J].应用气象学报, 2009, 20(3): 380-384. [14] HERTL S, SCHAFFAR G. An autonomous approach to road temperature prediction[J]. Meteo Appl, 1998, 5(3): 227-238. [15] BOUILLOUD L, MARTIN E. A coupled model to simulate snow behavior on roads[J]. J Appl Meteo Climat, 2006, 45(3): 500-516. [16] SHAO J, LISTER P J. An automated nowcasting model of road surface temperature and state for winter road maintenance[J]. J Appl Meteo Climat, 1996, 35(8): 1 352-1 361. [17] SHAO J, LAUX S J, TRAINOR B J, et al. Nowcasts of temperature and ice on overhead railway transmission wires[J]. Meteo Appl, 2003, 10(2): 123-133. [18] CHAPMAN L, THORNES J E. A Blueprint for 21st Century Road Ice Prediction[C]//Standing International Road Weather Commission. Forecast Technology-road Icing: Proceeding of 11th International Road Weather Conference. Sapporo, Japan, 2002: 1-7. [19] IIVANAINEN T, PETTERSSON M. Quality management for road weather data[C]//Transportation Research Board. Transportation Research E-Circular: Proceeding of Sixth International Symposium on Snow Removal and Ice Control Technology. Spokane, Washington: Transportation Research E-Circular, 2004: 12-135. [20] 孟春雷, 张朝林.路面气象数值预报模型及性能检验[J].应用气象学报, 2012, 23(4): 451-458. [21] 刘梅, 尹东屏, 王清楼, 等.南京地区冬季路面结冰天气标准及其预测[J].气象科学, 2007, 27(6): 685-690. [22] 季天剑, 黄晓明, 刘清泉, 等.沥青路面表面水膜厚度试验[J].公路交通科技, 2004, 21(12): 14-17. [23] 季天剑, 黄晓明, 刘清泉, 等.道路表面水膜厚度预测模型[J].交通运输工程学报, 2004, 4(3): 1-3. [24] BOUILLOUD L, MARTIN E, HABETS F. Road surface condition forecasting in France[J]. J Appl Meteo Climat, 2010, 48(12): 2 513-2 527. [25] 交通部公路规划设计院. 公路自然区划标准(中华人民共和国交通部部颁标准JTJ 003-86)[S]. 北京: 人民交通出版社, 1986. [26] CRAGO R D, BRUTSAERT W. A comparison of several evaporation equations[J]. Water Resources Research, 1992, 28(3): 951-954. [27] 毛锐.太湖水面蒸发量预报模型及其应用[J].湖泊科学, 1992, 4(4): 8-13. [28] 闵骞.利用彭曼公式预测水面蒸发量[J].水利水电科技进展, 2001, 21(1): 37-39. [29] 包云轩.气象学[M].北京:中国农业出版社, 2007:95-97. [30] 李德明, 张隐君.天气预报评分的统计检验[J].气象, 1981, 7(10): 11-14. -
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