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VTTI：2018年对弗吉尼亚大桥实施的混合复合梁进行全面实验室评估报告（英文版）

This research project studied a steel-reinforced concrete and fiber-reinforced polymer (FRP) structural element called the Hybrid-Composite Beam (HCB). The beam was used in a skewed simple span superstructure replacement project over the Tides Mill S...

2024-11-19 68 2.3MB 34页
VTTI：2018年两车道乡村道路曲线划定创新方法评价报告（英文版）

Run-off-road crashes are a major problem for rural roads. These roads tend to be unlit, and drivers may have difficulty seeing or correctly predicting the curvature of horizontal curves. This leads to vehicles entering horizontal curves at speeds tha...

2024-11-19 52 1.62MB 74页
VTTI：2018年用于桥梁抗剪和端区加固的碳纤维增强聚合物网格报告（英文版）

Corrosion of reinforcing steel reduces life spans of bridges throughout the United States; therefore, using non-corroding carbon fiber reinforced polymer (CFRP) reinforcement is seen as a way to increase service life. The use of CFRP as the flexural ...

2024-11-19 60 3.92MB 78页
VTTI：2018年桥面线性裂缝报告（英文版）

Concrete cracking in bridge decks remains an important issue relative to deck durability. Cracks can allow increased penetration of chlorides, which can result in premature corrosion of the reinforcing steel and subsequent spalling of the concrete de...

2024-11-19 36 2.96MB 80页
VTTI：2016年弗吉尼亚州交通部布里斯托尔区I-81落锤偏转仪重复网络级测试分析报告（英文版）

This study was undertaken in an effort to determine the required time between subsequent rounds of network-level pavement deflection testing using a falling weight deflectometer (FWD) on the Virginia Department of Transportation’s (VDOT’s) interstate...

2024-11-19 58 1.18MB 39页
VTTI：2016年连续摩擦测量设备作为改进碰撞率预测的工具：试点研究报告（英文版）

A comprehensive pavement management system includes a Pavement Friction Management Program (PFMP) to ensure pavement surfaces are designed, constructed, and maintained to minimize friction-related crashes in a costeffective manner. The Federal Highwa...

2024-11-19 48 1.07MB 42页
VTTI：2015年埋地电缆路边动物检测系统的评估报告（英文版）

Animal-vehicle collisions (AVC) are a concern for departments of transportation as they translate into hundreds of human fatalities and billions of dollars in property damage each year. A recently published report states that the Virginia Department ...

2024-11-19 57 1.5MB 45页
VTTI：2014年MMLS3对含有碳酸盐骨料的沥青路面混合料加速磨损的评价报告（英文版）

The purpose of this study was to develop an accelerated wearing protocol for assessing the susceptibility of asphalt surface mixtures to polishing. This was the second phase of the study. The first phase focused on assessing the characteristics of se...

2024-11-19 50 1.37MB 33页
VTTI：2015年弗吉尼亚路面预防性维护处理的最佳实践和绩效评估报告（英文版）

Preventive maintenance has the potential to improve network condition by retarding future pavement deterioration. This report outlines guidelines for implementing a preventive maintenance policy for bituminous pavements. Preventive maintenance treatm...

2024-11-19 65 1.38MB 60页
UNIFE：2021年国际标准化-欧洲铁路协会的愿景报告（英文版）

In its recent Communication on a Sustainable and Smart Mobility Strategy1 , the European Commission recognises the need for a rail transport sector capable of tackling the climate emergency and seizing the opportunities of modern, sustainable, innova...

2024-11-19 62 321.78KB 9页
UNIFE：2021年TSI转型以打造具有竞争力的欧洲铁路行业报告（英文版）

Based in Brussels since 1992, UNIFE is the association representing Europe’s rail supply industry at the European Union (EU) and international levels. UNIFE’s members include more than 100 companies – from SMEs to major industrial champions – active ...

2024-11-19 48 547.66KB 7页
UNIFE：2020年关于数字化的愿景文件报告-第二章（英文版）

Based in Brussels since 1992, UNIFE is the association representing Europe’s rail supply industry at the European Union (EU) and international levels. UNIFE’s members include more than 100 companies – from SMEs to major industrial champions– active i...

2024-11-19 51 750.8KB 24页
UNIFE：2019年从言辞到行动的欧洲工业未来长期战略报告（英文版）

European industry is everywhere in our daily life: from the houses we build, the furniture we buy, the clothes we wear, the food we eat, the healthcare we receive, the energy and means of transport we use to the objects and products ever-present in o...

2024-11-19 49 4.77MB 32页
UNIFE：2021年COP21关键信息报告（英文版）

Representing over 80 small, medium, and large rail supply companies to the European Union and internationally, UNIFE—the European Rail Industry Association, is an active promoter of the environmentally-friendly nature of rail transport, the modal shi...

2024-11-19 53 3.14MB 8页
IMPERIALBRANDS：2022年ESG人类和地球报告（英文版）

In January 202l, we outlined our new five.year strategy to transfom Imperial. Laterthat year, we launched a newCompamypurpose and vision, defning why we arehere and what we are trying to achieve.0ur commitment to environmental, socia]and govemance (E...

2024-11-19 51 6.75MB 33页
Lauriane Pinsault：2022年全球祖母绿与红宝石供应：市场数据分析报告（英文版）

Before drawing conclusions from the data presented herein, readers are alerted to the significant challenges related to obtaining data and information about coloured gemstone supply and the downstream market. The major challenge when trying to assess...

2024-11-18 51 1.24MB 23页
千方科技：2020年智能物联时代的全域交通战略思考报告

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2024-11-18 38 4.8MB 15页
世界卫生组织：2021年世卫组织全球空气质量指南执行摘要

失：空气污染暴露估计每年造成数百万人死亡和健康寿命年损失。目前，据估算空气污染造成的疾病负担与不健康饮食和吸烟等其他主要全球健康风险相当，已经成为人类健康的最大环境威胁。自上个世纪90年代以来，尽管空气质量有了显著改善，但是全球死亡人数和健康寿命损失年数几乎没有下降。在此期间，高收入国家的空气质量显著改善，但是随着大规模城市化和经济发展，大多数中低收入国家的空气质量普遍恶化。此外，由于人口老龄化和生活方式的改变，全球非传染性疾病患病率迅速上升，非传染性疾病已经成为当前全球死亡和伤 ...

2024-11-18 284 299.31KB 14页
国际铝协：2018年铝工业碳足迹技术支持文件报告（英文版）

The goal of this guidance is to calculate the potential contribution to global warming of the production of one (1) tonne of cast primary aluminium metal from aluminium containing ore(s). Its climate change impact, expressed as carbon dioxide equiv...

2024-11-18 49 714.36KB 16页
defra：2011年商品和服务在生命周期内的温室气体排放评价规范报告（英文版）

This Publicly Available Specification (PAS) specifiesrequirements for the assessment of the life cycle GHGemissions of goods and services (collectively referredto as "products") based on key life cycle assessmenttechniques and principles. T...

2024-11-18 59 17.24MB 45页

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