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为评价避险车道的安全性,根据避险车道自身的参数,选取引道长度、与主线交角、视距条件、制动床长度、坡度、集料类型、集料深度等9个指标,应用集值统计法确定各指标权值。结合各指标实际值与相对安全值的差值,确定评价标准,评价避险车道的安全性。结果表明:各评价指标对避险车道安全性的影响程度由大到小排序依次为制动床长度、集料深度、视距条件、制动床坡度、集料类型、端头防护、交角、引道长度和其他,根据各指标的实际取值即可评价实际避险车道设计的安全性;避险车道的安全性可通过优化制动床长度、集料深度等参数的取值等方法来提升。
In order to evaluate the safety of the safe haven, according to the parameters of the safe haven, select the 9 indexes of the length of the approach track, the intersection with the main line, the line of sight distance, the length of the moving bed, the slope, the type of the aggregate and the depth of the aggregate Set value statistics to determine the weight of each indicator. Combined with the difference between the actual value and the relative safety value of each index, the evaluation criteria are determined to evaluate the safety of the safe haven lane. The results show that the order of influence of each evaluation index on the safety of safe haven lanes is as follows: length of brake bed, depth of aggregate, condition of line of sight, gradient of brake bed, aggregate type, tip protection, The length of the approach track and others, the safety of the actual safe lane design can be evaluated according to the actual value of each index. The safety of the safe lane can be optimized by optimizing the parameters such as the length of the brake bed and the depth of the aggregate Enhance.