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学者姓名：胡江碧
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摘要 ：
Pavement marking in daylight with poor quality cannot provide a reference for drivers to specify their own position relative to nearby vehicles. Luminance and Correlated color temperature (CCT) of sunlight is of importance for daytime visibility of in-service pavement markings, which lacks detailed consideration. This paper aims to explore the daytime visibility requirements of in-service pavement markings considering the influence of natural light characteristics. Based on analyzing the mechanism and impact factors of daytime visibility of pavement markings, a subjective scale of pavement markings state in the drivers' field of view was proposed and a short and bold line was recommended as the standard state. Thirty-six tested drivers were randomly selected to detect white and yellow markings of both 15 cm and 20 cm width under 2000 to 23,000 lx and 5500 to 8500 K for outdoor natural light environment. The luminance contrast of the pavement marking to the surrounding road surface ranged from 0 to 10. The result indicated that the natural light with 2000 to 3000 lx and 7500 to 8500 K is the most unfavorable light environment for drivers to recognize pavement markings during daytime. The detection distance is becoming longer with the increase of luminance contrast. The detection distance does not increase with the increase of luminance contrast when the luminance contrast of white markings is greater than 4 and that of yellow markings is greater than 3. The model was established expressing the relationship between luminance contrast and Q(d) contrast. The preview time 3.65 s was selected to calculate the minimum requirements of Q(d) at speeds of 60, 80, 100 km/h, respectively, for different types of markings. The results can provide scientific evidence for quality evaluation and maintenance management of pavement markings in service for daytime visibility.
关键词 ：
daytime visibility daytime visibility detection distance detection distance pavement markings pavement markings luminance contrast luminance contrast
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| GB/T 7714 | Hu, Jiangbi , Guan, Yanyan , Wang, Ronghua et al. Investigating the Daytime Visibility Requirements of Pavement Marking Considering the Influence of CCT and Illuminance of Natural Light [J]. | INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH , 2022 , 19 (5) . |
| MLA | Hu, Jiangbi et al. "Investigating the Daytime Visibility Requirements of Pavement Marking Considering the Influence of CCT and Illuminance of Natural Light" . | INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 19 . 5 (2022) . |
| APA | Hu, Jiangbi , Guan, Yanyan , Wang, Ronghua , Cao, Qingyun , Guo, Yunpeng , Hu, Qingxin . Investigating the Daytime Visibility Requirements of Pavement Marking Considering the Influence of CCT and Illuminance of Natural Light . | INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH , 2022 , 19 (5) . |
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摘要 ：
Improper design of the geometric elements and facilities of bikeway systems could endanger cyclists' safety and comfort, resulting in an increased risk of bicycle accidents; such accidents sometimes have severe consequences, namely casualties. The method of expression for cyclists' safety and comfort and the question of how the correlation of these factors with bikeway characteristics-such as the design of geometry and facilities-can be quantitatively described are the key problems facing a reduction in accident risk. Cycling workload can be employed to assess cyclists' safety and comfort. However, there has been little quantitative expression research on this topic, with no clear definition of cycling workload. The quantitative expression of cycling workload is important for developing guidance for the safe design and operational management of bikeways; this is necessary for controlling conditions that might induce overworking and discomfort among users. In this paper, the concept of cycling workload is clearly defined based on cyclists' comfort and safety formation mechanisms. Through a literature review and a comparative analysis, it is inferred that heart rate variability (HRV) can be used as a quantitative measure and the low-frequency-high-frequency ratio (LF/HF) can be used as a physiological signal to quantify cycling workload. A subjective scale was found to effectively express cyclists' feelings of safety and comfort, with the performance assessed according to a human factor engineering research paradigm that classified cycling status into three qualitative levels-comfortable; a little stressful; and stressful. In order to form various cycling workload states and to obtain the relationship between LF/HF data and various bikeway characteristics, we designed a field cycling experiment. This was conducted by 24 participants who wore a physiological measuring apparatus under three different bikeway characteristic scenario types including variations in cycling width, direction, and bikeway edges at four cycling speeds in the 10-25 km/h range. Statistical analysis was used to address the collected LF/HF values and the subjective scale results, and a quantitative model for assessing cycling workload was established. By adopting a classification and regression tree (CART) algorithm as a data-mining method, the classification threshold values (Delta HRV) of three cycling workload levels were obtained: 19 indicated a level between comfortable and a little stressful; and 79 indicated a level between a little stressful and stressful.
关键词 ：
heart rate variability heart rate variability human factor human factor bikeway characteristics bikeway characteristics classification and regression tree classification and regression tree bikeway bikeway
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| GB/T 7714 | Qu, Shangwen , Wang, Ronghua , Hu, Jiangbi et al. Study on Quantitative Expression of Cycling Workload [J]. | APPLIED SCIENCES-BASEL , 2022 , 12 (20) . |
| MLA | Qu, Shangwen et al. "Study on Quantitative Expression of Cycling Workload" . | APPLIED SCIENCES-BASEL 12 . 20 (2022) . |
| APA | Qu, Shangwen , Wang, Ronghua , Hu, Jiangbi , Yang, Li . Study on Quantitative Expression of Cycling Workload . | APPLIED SCIENCES-BASEL , 2022 , 12 (20) . |
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摘要 ：
Adverse weather such as fog will reduce drivers' visual recognition ability, and important visual information in the driving will be weakened and even lost, which brings risks to driving safety. This paper sets out to explore causes for the decline in driving visual ability in foggy sections at night based on drivers' visual recognition demand mechanism. The purpose is to study the influence of light source characteristics on visual distance under open traffic conditions. Through an outdoor visual recognition test, data were collected on the visual recognition distances of 12 car drivers to standard gray small targets, under different light source characteristics and meteorological visibility conditions. Results revealed that the latter conditions, along with illuminance and correlated color temperature affected drivers' visual recognition ability in low meteorological visibility sections at night. At the same illuminance and meteorological visibility, a light source with high correlated color temperature could improve visual distance. The multivariate power function model of meteorological visibility, illuminance at the target and driver's visual distance in foggy areas were obtained by fitting. The research methods and conclusions could provide technical reference for improving traffic visual distance at night, and thus help lay a foundation for road construction and traffic control technology in foggy areas.
关键词 ：
Light source characteristic Light source characteristic Traffic safety Traffic safety Meteorological visibility Meteorological visibility Visual distance Visual distance Illuminance Illuminance
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| GB/T 7714 | Hu, Jiangbi , Sun, Shuya , Wang, Ronghua . Research on the influence of light source characteristics on traffic visual distance in foggy areas at night [J]. | BUILDING AND ENVIRONMENT , 2022 , 212 . |
| MLA | Hu, Jiangbi et al. "Research on the influence of light source characteristics on traffic visual distance in foggy areas at night" . | BUILDING AND ENVIRONMENT 212 (2022) . |
| APA | Hu, Jiangbi , Sun, Shuya , Wang, Ronghua . Research on the influence of light source characteristics on traffic visual distance in foggy areas at night . | BUILDING AND ENVIRONMENT , 2022 , 212 . |
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摘要 ：
道路交通安全设施的设置与驾驶员行车安全舒适性息息相关,如何合理有效地设置交通安全设施,对降低驾驶员行车安全风险至关重要。基于对交通安全设施设置原理和基本设置原则的分析,针对道路行车条件基本一致、分别依据中国和英国的交通安全设施相关设置规范的港珠澳大桥珠海口岸段与香港口岸段桥梁和隧道影响区域两个路段,进行对比分析,发现大陆段和香港段在交安设施设置方面存在一定差异。结果表明:对于交通标志,大陆段的版面图形和香港段的版面颜色设置更为合理,但香港段隧道入口前交通标志数量和版面信息过载;对于交通标线,大陆段隧道入口前设置的减速标线和红色路面铺装不符合交通安全需求和交通色彩要求;对于护栏,大陆段和香港段护...
关键词 ：
交通安全设施 交通安全设施 交通工程 交通工程 港珠澳大桥 港珠澳大桥 驾驶安全 驾驶安全
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| GB/T 7714 | 胡江碧 , 杨阳 , 王荣华 . 港珠澳大桥交安设施现状分析 [J]. | 公路 , 2021 , 66 (06) : 261-269 . |
| MLA | 胡江碧 et al. "港珠澳大桥交安设施现状分析" . | 公路 66 . 06 (2021) : 261-269 . |
| APA | 胡江碧 , 杨阳 , 王荣华 . 港珠澳大桥交安设施现状分析 . | 公路 , 2021 , 66 (06) , 261-269 . |
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摘要 ：
Objective Traffic safety is closely related to the driver's ability to obtain visual information. Low visibility would result in traffic accidents. This study aimed to explore the difference between meteorological visibility and traffic safety visual distance in foggy areas in the daytime, and analyze the difference between dynamic visual ability and static visual ability, so as to calculate the maximum acceptable speed limit that meets the driver's safety visual distance requirement. Methods Visual distances under different visibility conditions were collected for 12 passenger car drivers through static and naturalistic driving visual recognition experiments. The power function relation model between driver's static visual distance and meteorological visibility was established, and the attenuation rates of dynamic visual distance at different driving speeds were obtained. Results Traffic safety visual distance (TSVD) gradually grows with the increase of visibility and finally tends to be stable due to the vision limitation of the human eyes under good weather conditions. The drivers' visual ability decreased while driving dynamically, and dynamic TSVD was shorter than static TSVD. Conclusions Traditional meteorological visibility is different from drivers' actual TSVD, but there is a correlation between them. According to the relationship between visibility and dynamic TSVD, the maximum recommended speed limit values under different visibility levels are provided. The calculation of the maximum acceptable speeds under specific visibility conditions can provide a technical basis for road construction and traffic management.
关键词 ：
visual distance visual distance visibility visibility Foggy area Foggy area traffic safety traffic safety
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| GB/T 7714 | Sun, Shuya , Hu, Jiangbi , Wang, Ronghua . Correlation between visibility and traffic safety visual distance in foggy areas during the daytime [J]. | TRAFFIC INJURY PREVENTION , 2021 , 22 (7) : 514-518 . |
| MLA | Sun, Shuya et al. "Correlation between visibility and traffic safety visual distance in foggy areas during the daytime" . | TRAFFIC INJURY PREVENTION 22 . 7 (2021) : 514-518 . |
| APA | Sun, Shuya , Hu, Jiangbi , Wang, Ronghua . Correlation between visibility and traffic safety visual distance in foggy areas during the daytime . | TRAFFIC INJURY PREVENTION , 2021 , 22 (7) , 514-518 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
为保证隧道内驾驶员对指路标志的安全视认,分析隧道照明光环境、标志特性对驾驶员视认距离的影响,营造了隧道中间段5种色温、3种亮度照明光环境,随机选取了20名小客车驾驶员进行半透发光式与逆反射式指路标志的视认试验.结果 表明:隧道内半透发光式指路标志的视认距离明显优于逆反射式指路标志,且半透发光式指路标志的最佳字体照度范围为3 000 ～3 500 lx;在最佳的背景光环境条件下,半透发光式指路标志与字高53 cm,笔画在5画以下、5～10画及10画以上的逆反射式指路标志达到相同的视认效果时,字高分别缩减了35.85％、30.19％和24.53％.半透发光式指路标志的应用可提高隧道内指路标志的视认距离,并能减少交通事故的发生,可为以后隧道内交通标志的改进与创新提供理论支撑.
关键词 ：
隧道内照明光环境 隧道内照明光环境 逆反射式指路标志 逆反射式指路标志 半透发光式指路标志 半透发光式指路标志 视认距离 视认距离 安全工程 安全工程 字体照度 字体照度
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| GB/T 7714 | 胡江碧 , 陈丽 , 孙淑娅 et al. 半透发光式与逆反射式指路标志视认效果对比分析 [J]. | 安全与环境学报 , 2020 , 20 (3) : 1013-1020 . |
| MLA | 胡江碧 et al. "半透发光式与逆反射式指路标志视认效果对比分析" . | 安全与环境学报 20 . 3 (2020) : 1013-1020 . |
| APA | 胡江碧 , 陈丽 , 孙淑娅 , 王荣华 . 半透发光式与逆反射式指路标志视认效果对比分析 . | 安全与环境学报 , 2020 , 20 (3) , 1013-1020 . |
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摘要 ：
高速公路互通立交区道路、交通和行车环境条件的复杂程度远高于基本路段,是制约高速公路运行安全和通行效率的瓶颈路段.互通立交安全性评价研究虽取得了一系列成果,但离实际应用仍有一定差距,有必要对其研究现状进行回顾、总结与展望.为此,针对互通立交安全性评价研究进行系统梳理和总体框架搭建,将其具体分为人因工程理论、交通冲突理论、运行速度协调理论三大理论,事故统计法和层次分析法两大方法,并对其进行综合评述.研究结果表明:人因工程理论适用于主线和匝道的安全性评价,能更准确排查行车安全隐患点、段,但应考虑车辆类型和合理的试验样本量,提高评测指标的稳定性;交通冲突理论适用于主线上存在明显交通冲突区域的安全性评价,但未考虑道路条件对安全性的影响,且应进一步完善交通冲突评价指标体系、划分阈值以及分、合流形式的研究;运行速度协调理论较为成熟,已应用于高速公路基本路段的安全性评价,但主线和匝道的运行速度段落划分和预测模型精度均有待进一步提高;事故统计法的结论客观可靠,但事故数据统计和共享难度大,层次分析法可确定安全性评价的重点内容和关键影响因素,但评价结果主观性较强,2种方法的适用性均存在较大限制.未来研究应针对主线和匝道两大区域系统展开,评价对象应包括分流影响区、合流影响区和衔接过渡区三大路段,建议聚焦人因工程开展深入研究,以最小的代价创建符合人机功效学的互通立交安全运行环境条件.
关键词 ：
互通立交 互通立交 安全性评价 安全性评价 人因工程 人因工程 道路工程 道路工程 交通冲突 交通冲突 运行速度 运行速度 综述 综述
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| GB/T 7714 | 胡江碧 , 何禄诚 , 王荣华 . 高速公路互通立交安全性评价研究综述 [J]. | 中国公路学报 , 2020 , 33 (7) : 17-28 . |
| MLA | 胡江碧 et al. "高速公路互通立交安全性评价研究综述" . | 中国公路学报 33 . 7 (2020) : 17-28 . |
| APA | 胡江碧 , 何禄诚 , 王荣华 . 高速公路互通立交安全性评价研究综述 . | 中国公路学报 , 2020 , 33 (7) , 17-28 . |
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摘要 ：
为研究高海拔地区与平原区驾驶员驾驶工作负荷差异特性以得到适用于高海拔地区的隧道照明亮度需求,以及客观量化高海拔地区公路隧道照明设计与管理标准提供理论、方法与技术依据,基于驾驶员驾驶工作负荷理论,从驾驶视认安全、稳定和舒适性的角度,分别在道路运行条件相似的江西宜安Ⅱ级公路和青藏公路高原青藏段(公路-Ⅱ级)设计实车试验进行定量研究。1)运用CART分类方法分析实地驾驶试验数据,发现海拔高度与驾驶员正常行驶的驾驶工作负荷之间呈正相关关系:平原区驾驶员驾驶需求最低、驾驶工作负荷度最小,海拔高度3 200～3 300 m驾驶工作负荷度居中,海拔高度4 300～4 400 m驾驶工作负荷度最大。2)通过分...
关键词 ：
隧道照明亮度标准 隧道照明亮度标准 视认需求 视认需求 高海拔地区 高海拔地区 驾驶工作负荷 驾驶工作负荷 驾驶工作负荷度阈限 驾驶工作负荷度阈限 隧道照明 隧道照明
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| GB/T 7714 | 胡江碧 , 江川 , 高小娟 . 基于驾驶工作负荷的高海拔地区隧道照明亮度分析 [J]. | 隧道建设(中英文) , 2020 , 40 (S1) : 17-24 . |
| MLA | 胡江碧 et al. "基于驾驶工作负荷的高海拔地区隧道照明亮度分析" . | 隧道建设(中英文) 40 . S1 (2020) : 17-24 . |
| APA | 胡江碧 , 江川 , 高小娟 . 基于驾驶工作负荷的高海拔地区隧道照明亮度分析 . | 隧道建设(中英文) , 2020 , 40 (S1) , 17-24 . |
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摘要 ：
本发明公开了道路低位照明灯参数的测算方法，包括：选择多组具有预设色温和显色指数的低位照明灯，或者，选择可以设置多对预设色温和显色指数的低位照明灯组；利用所述多组低位照明灯的每一组或所述低位照明灯组的每一对预设色温和显色指数，在预定的不同亮度水平和预定的不同运行速度下，动态视认目标物；利用所获得的样本拟合视认距离和亮度的关系模型；基于所拟合的关系模型，选定所述多组低位照明灯中的至少一组或者选定所述低位照明灯组中的至少一对预设色温和显色指数。本发明还公开了道路低位照明灯的安装方法以及安装有低位照明灯的道路。本发明克服了现有低位照明灯设计中在光源特性指标、安装高度及配光方面存在的问题。
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| GB/T 7714 | 胡江碧 , 郭云鹏 , 高小娟 et al. 一种道路低位照明灯参数的测算方法 : CN202011020934.3[P]. | 2020-09-25 . |
| MLA | 胡江碧 et al. "一种道路低位照明灯参数的测算方法" : CN202011020934.3. | 2020-09-25 . |
| APA | 胡江碧 , 郭云鹏 , 高小娟 , 王荣华 . 一种道路低位照明灯参数的测算方法 : CN202011020934.3. | 2020-09-25 . |
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摘要 ：
The infrastructure, traffic, and driving environment at interchanges are considerably more complicated than those in basic freeway segments; interchanges are the bottleneck segments of freeways in terms of safety and efficiency. Although there has been a series of achievements in terms of safety evaluation of interchanges, issues remain between theoretical systems and practical applications. It is necessary to review the current literatures to lay the foundation for future research. This paper summarizes the framework of all researches on interchange safety evaluation. The evaluation works are based on three theories-ergonomic theory, traffic conflict theory, and consistent operating speed theory. The main evaluation methods are the crash statistical method and analytic hierarchy process method. For evaluation of the theory, ergonomic theory can be widely used to evaluate the safety of the mainline and the ramp. This accurately detects risky sites and segments; however, the tested vehicle types and sample sizes should be determined to improve the validity of the index results. Traffic conflict theory is applicable for assessing the mainline areas with obvious traffic conflicts, but the impact of road conditions on safety is not considered. The evaluation index and the corresponding thresholds under more forms of diverging and merging should be studied, respectively. Consistent operating speed theory is relatively mature to evaluate the safety condition of basic segments along freeways; however, the segment divisions and prediction models of operating speed on mainlines and ramps should be further optimized. In terms of the evaluation methods, the results of the crash statistical method are objective and reliable, but data collection and data sharing are difficult. The analytic hierarchy process method can determine the key factors for safety evaluation, but the results are partially subjective. Both evaluation methods have limitations. For further research, the safety evaluation for interchanges should be developed around both mainline and ramp systems, and the evaluation objects should consist of the diverging influence area, merging influence area, and the joint area. It is suggested that further research focus on human-factor engineering theory, and thus the cost-efficiency could be determined to establish a safe driving and operation environment for interchanges in line with ergonomics. © 2020, Editorial Department of China Journal of Highway and Transport. All right reserved.
关键词 ：
Analytic hierarchy process Analytic hierarchy process Automobile drivers Automobile drivers Cost engineering Cost engineering Data Sharing Data Sharing Efficiency Efficiency Ergonomics Ergonomics Interchanges Interchanges Merging Merging Predictive analytics Predictive analytics Safety engineering Safety engineering Statistical methods Statistical methods
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| GB/T 7714 | Hu, Jiang-Bi , He, Lu-Cheng , Wang, Rong-Hua . Review of Safety Evaluation of Freeway Interchange [J]. | China Journal of Highway and Transport , 2020 , 33 (7) : 17-28 . |
| MLA | Hu, Jiang-Bi et al. "Review of Safety Evaluation of Freeway Interchange" . | China Journal of Highway and Transport 33 . 7 (2020) : 17-28 . |
| APA | Hu, Jiang-Bi , He, Lu-Cheng , Wang, Rong-Hua . Review of Safety Evaluation of Freeway Interchange . | China Journal of Highway and Transport , 2020 , 33 (7) , 17-28 . |
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