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Development of safety-based guidelines for cost-effective utility pole treatment along highway rights-of-way.

机译：制定基于安全性的指导方针，以沿高速公路通行权进行具有成本效益的电线杆处理。

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摘要

This study was conducted to develop a methodology to predict utility pole accident rates and to evaluate cost-effectiveness for safety improvement for utility pole accidents. The utility pole accident rate prediction model was based on the encroachment rate approach introduced in the Transportation Research Board Special Report 214. The utility pole accident rate on a section of highway depends on the roadside encroachment rate and the lateral extent of encroachment. The encroachment rate is influenced by the horizontal and vertical alignment of the highway as well as traffic volume and mean speed. The lateral extent of encroachment is affected by the horizontal and vertical alignment, the mean speed and the roadside slope. An analytical method to generate the probability distribution function for the lateral extent of encroachment was developed for six kinds of encroachment types by the horizontal alignment, encroachment direction. The encroachment rate was calibrated with the information on highway and roadside conditions and the utility pole accident records collected on the sections of 55mph speed limit of the State Trunk Highway 12 in Wisconsin. The encroachment rate on a tangent segment was calibrated as a function of traffic volume with the actual average utility pole accident rates by traffic volume strategies. The adjustment factors for horizontal and vertical alignment were then derived by comparing the actual average utility pole accident rates to the estimations from the model calibrated for tangent sections.;The distribution of number of utility pole accidents under the same prevailing conditions is represented by the "Poisson Distribution". Unusually hazardous sections can be identified by comparing the actual number of utility pole accidents to the system-wide average of predicted utility pole accident rate. A computerized benefit-cost analysis procedure was then developed as a means of evaluating alternative measures from reducing utility pole accidents. The program calculates the benefit-cost ratio and the percent of reduction of utility pole accidents resulting from the implementation of a safety improvement. This program can be used to develop safety improvement alternatives for utility pole accidents when a predetermined performance level is specified.
机译：进行这项研究是为了开发一种方法，以预测电线杆事故发生率并评估提高电线杆事故安全性的成本效益。电线杆事故率预测模型基于运输研究委员会特别报告214中引入的侵入率方法。高速公路某段的电线杆事故率取决于路边侵入率和横向侵入程度。侵犯率受高速公路的水平和垂直线形以及交通量和平均速度的影响。水平和垂直方向，平均速度和路边坡度会影响横向侵蚀程度。针对水平侵彻，侵彻方向的六种侵彻类型，开发了一种分析方法，用于产生侵彻横向范围的概率分布函数。根据高速公路和路边状况的信息以及在威斯康星州12号州际公路的55mph时速限制部分收集的电线杆事故记录，对侵入率进行了校准。通过交通量策略，将切线段上的侵犯率校准为交通量的函数，并使用实际平均电线杆事故率进行计算。然后，通过将实际平均电线杆事故率与切线截面校准模型的估计值进行比较，得出水平和垂直对齐的调整因子。；在相同的主要条件下，电线杆事故数的分布表示为“泊松分布”。通过将电线杆事故的实际数量与预测的电线杆事故发生率的全系统平均值进行比较，可以识别出异常危险的区域。然后，开发了计算机化的成本效益分析程序，作为评估减少公用事业杆事故的替代措施的一种方法。该程序将计算成本效益比率和因实施安全改进而导致的电线杆事故减少的百分比。当指定了预定的性能水平时，该程序可用于开发针对电线杆事故的安全改进方案。

著录项

  • 作者

    Kim, Jeong Hyun.;

  • 作者单位

    The University of Wisconsin - Madison.;

  • 授予单位 The University of Wisconsin - Madison.;
  • 学科 Civil engineering.
  • 学位 Ph.D.
  • 年度 1996
  • 页码 233 p.
  • 总页数 233
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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