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Climate Change Modeling and the Weather-Related Road Accidents

机译:气候变化建模和与天气有关的道路事故

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This presentation projects the dimate change and studies the impact of climate change on hazardous weather-related road accidents in New Brunswick province of Canada.Climate change modeling uses 30-years daily Weather records lor the seven climate zones of New Brunswick National Centers for Environmental Prediction (NCEP) re-analysis dataset. large-scale simulation data Irom the third generation Coupled Global Climate Model (CGCM3) and third version of Hadley Centre Coupled Model (HadCM3). Large-scale simulation data from Canadian GCM under SRES-A2, and SRES-A1B scenarios along with large-scale simulation data from Hadley center CM under SRES-A2. and SRES-B2 during the 21" century are used to model the dimate change.The dimate change modeling estimates the increasing rainy days for all dimate zones however, the number of snowy and freezing days may decrease or slay the same for most of the climate zones during three different future periods In 21st century (t.e. 2011-2040, 2011-2070 2071-2100).This study also estimates an Exposure to Weather-Accident Severity (EWAS) index using both single and multiple road accident data. The negative binomial regression and Poisson regression models are applied to estimate the relationship between the EWAS index and weather-related explanatory variables of road accidents.Surface-wealher condition, weather-driver's gender, weather-driver s age. weather-driver s experience and weather-vehicle s age have strong positive correlations with EWAS index. Surface-road alignment and surface-foad characteristics have negative relationship with EWAS index. These relationships are similar at different census divisions of the New Brunswick.Increasing number of hazardous weather days estimated by the climate change modeling, and positive relationships among EWAS index and weather-related explanatory variables of road accidents suggest more hazardous weather-related accidents in future.
机译:该演示文稿预测了生物的变化,并研究了气候变化对加拿大新不伦瑞克省与天气相关的危险道路事故的影响。 气候变化模型使用30年每天的天气记录或新不伦瑞克国家环境预测中心(NCEP)的7个气候区重新分析数据集。大规模模拟数据来自第三代全球气候耦合模型(CGCM3)和第三版哈德利中心耦合模型(HadCM3)。来自加拿大GCM的SRES-A2和SRES-A1B情景下的大规模模拟数据,以及来自Hadley中心CM的SRES-A2下的大规模模拟数据。使用21英寸世纪的SRES-B2和SRES-B2来模拟生物变化。 生命变化模型估算出所有生命区域的雨天都在增加,但是,在未来的三个不同时期中,大多数气候区的下雪天和冰冻天数可能会减少或相同,这在21世纪(te 2011-2040,2011- 2070 2071-2100)。 这项研究还使用单个和多个道路事故数据来估计暴露于天气事故严重性(EWAS)的指数。应用负二项式回归和泊松回归模型来估算EWAS指数与道路事故的天气相关解释变量之间的关系。 地表天气状况,天气驾驶员的性别,天气驾驶员的年龄。气象驾驶员的经验和气象车辆的年龄与EWAS指数具有很强的正相关关系。地表路线和地表特征与EWAS指数呈负相关。这些关系在新不伦瑞克省的不同人口普查部门相似。 通过气候变化模型估计的危险天气天数增加,并且EWAS指数与道路事故的天气相关解释变量之间的正相关关系表明未来与天气有关的危险事故更多。

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