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High-Risk Rural Road Safety Study and Determining the Crash-Reduction Factors for High-Risk Rural-Road Usage 被引量:1
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作者 Ranjit Prasad Godavarthy Eugene R. Russell 《Journal of Transportation Technologies》 2016年第1期1-8,共8页
More than 32,000 motorists are killed on U.S. roads and streets annually, and approximately 54% of the accidents occur on rural roads. In an attempt to address and reduce these fatalities, the current transportation a... More than 32,000 motorists are killed on U.S. roads and streets annually, and approximately 54% of the accidents occur on rural roads. In an attempt to address and reduce these fatalities, the current transportation act, the Safe, Accountable, Flexible, Efficient Transportation Equality Act: A Legacy for Users (SAFETY-LU), elevated the Highway Safety Improvement Program (HSIP) to a core program and included a $90,000,000 High-Risk Rural Road Program (HRRRP) to address and significantly reduce traffic fatalities and incapacitating injuries on rural major or minor collectors, and/or rural local roads. While there were many challenges to properly implement the HRRRP in counties, this study provided important information that was needed to identify the predominant crash types on HRRRP-eligible roads and compiled a list of countermeasures for the predominant crash types that were identified on Kansas’ high-risk rural roads. For the gathered countermeasures, crash reduction factors (CRFs) were also provided from the literature review, and their values were validated by conducting interviews with Kansas county engineers/officials. This study provided valuable information for the county engineers and local government officials while they worked on improving the safety of high-risk rural roads using HRRRP funds. 展开更多
关键词 HRRR hsip Rural Road Safety Crash Reduction Factors
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氢化苯乙烯/异戊二烯共聚物的二维核磁共振
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作者 李波 胡育林 +2 位作者 赵志超 王永峰 邵卫 《光谱实验室》 CAS CSCD 2012年第5期3020-3025,共6页
通过1H{13C}NM R、1H-1H COSY、13C-1H HSQC和13C-1H HM BC一维和二维核磁实验分析氢化苯乙烯/异戊二烯共聚物(HS IP)的微观结构。一维核磁实验1H{13C}NM R提供了HS IP的基本结构信息;通过1H-1H COSY实验确定同核H之间的耦合关系,明确了... 通过1H{13C}NM R、1H-1H COSY、13C-1H HSQC和13C-1H HM BC一维和二维核磁实验分析氢化苯乙烯/异戊二烯共聚物(HS IP)的微观结构。一维核磁实验1H{13C}NM R提供了HS IP的基本结构信息;通过1H-1H COSY实验确定同核H之间的耦合关系,明确了H的化学环境;13C-1H HSQC确定异核13C-1H的单键相关性,明确了直接相连接的C-H化学位移;13C-1H HM BC确定异核碳氢原子的远程相关性(2—3键),验证化学位移归属的正确性和微结构的存在性。 展开更多
关键词 氢化苯乙烯 异戊二烯共聚物 二维核磁共振 同核位移相关谱 异核单量子相干谱 异核多量子相干谱
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安全的公路通向安全的未来——美国公路安全改进计划(HSIP)自评工具概述
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作者 谢淑娟 安华娟 孙良泉 《中国个体防护装备》 2012年第1期48-53,共6页
本文主要介绍了美国公路安全改进计划(HSIP)的制定背景及其自评工具在领导、管理、规划、实施、评价方面的详细内容和实施方法。同时也描述了如何分析评价结果和制定行动计划,从而最大限度地保障人民群众的生命和财产安全。
关键词 公路安全改进计划(hsip) 自评价工具 内容 方法
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《周易本义》的“阙疑”方法 被引量:1
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作者 王风 《承德石油高等专科学校学报》 CAS 2003年第3期67-69,75,共4页
朱熹在《周易本义》中大量使用了“阙疑”方法 ,使“阙疑”从消极的解经方法上升为积极的解经方法。《周易本义》的“阙疑”方法 ,在中国经学史上独树一帜 ,是理学化经学的重要内容。
关键词 《周易本义》 “阙疑”方法 经学 宋学 易学 周易本义 朱熹
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