• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Transportation Research Board Annual meeting >Suggestions on How Agencies Should Apply the Highway Safety Manual to Two-Lane Road Curves
【24h】

Suggestions on How Agencies Should Apply the Highway Safety Manual to Two-Lane Road Curves

机译：关于代理商应如何将公路安全手册应用于两车道弯道的建议

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Horizontal curves are relatively risky portions of the highway system in the US and elsewhere.Fortunately, curves are also places where highway agencies have many options and opportunities formaking safety improvements. The publication of the Highway Safety Manual (HSM) offers agencies atool to evaluate the safety of a horizontal curve for safety with fewer field visits.This paper evaluates the HSM crash prediction model using data on two-lane rural horizontal curves inNorth Carolina. The objectives of this paper include providing highway agencies with practical advice onhow they can validate and apply the HSM to the analysis of horizontal curves.An analysis of the local conditions calibration factor for the HSM predictive model in North Carolinafound that a large number of sites (approximately 300) are required to meet HSM recommendations. Thelarge number of sites is partly due to the finding that random segments provided a more accurate outcomethan a subset of high crash locations. The primary purpose of this study was to analyze the differences inpredicted collisions based on field data collection versus using average or default values. Furthermore,these study results can provide highway agencies with practical guidance on how they can apply the newHSM methods to the analysis of horizontal curves for their own local or state conditions. The resultsshowed that annual average daily traffic, curve radius, and curve length were the most important factorsin determining prediction accuracy but that average or default values may be used for other parameterswith less risk to accuracy.
机译：在美国和其他地方，水平曲线是高速公路系统中相对危险的部分。 幸运的是，弯道处也是公路部门有很多选择和机会的地方。 改善安全性。公路安全手册（HSM）的发布为各机构提供了 用于评估水平曲线安全性的工具，以减少现场访问次数。 本文利用两车道农村水平曲线上的数据对HSM碰撞预测模型进行了评估。 北卡罗来纳。本文的目标包括为公路部门提供有关以下方面的实用建议 他们如何验证HSM并将其应用于水平曲线分析。 北卡罗莱纳州HSM预测模型的局部条件校准因子分析 发现要满足HSM建议，需要大量站点（大约300个）。这 大量的网站部分是由于发现随机细分提供了更准确的结果 而不是高碰撞位置的子集。这项研究的主要目的是分析 基于现场数据收集与使用平均值或默认值的预测碰撞。此外， 这些研究结果可以为公路部门提供有关如何应用新方法的实用指导。 HSM方法可以针对自己的局部或状态条件来分析水平曲线。结果 表明年平均日流量，弯道半径和弯道长度是最重要的因素 在确定预测精度时，但平均值或默认值可用于其他参数 准确性降低的风险。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号