From the perspective of ecological construction of roads, the reduction and purifying effects of greening plants on noise, raising dust and automobile exhaust, selection principles of arbors, shrubs, ground cover plan...From the perspective of ecological construction of roads, the reduction and purifying effects of greening plants on noise, raising dust and automobile exhaust, selection principles of arbors, shrubs, ground cover plants and herbaceous fl owers, and the methods of collocating arbors shrubs and grass in the construction of ecological roads were discussed in this study.展开更多
The combination of ornamental function and recreational function should be taken into account in road landscape design of scenic area.The theme characteristic should be highlighted by designing techniques.Roads in sce...The combination of ornamental function and recreational function should be taken into account in road landscape design of scenic area.The theme characteristic should be highlighted by designing techniques.Roads in scenic area should be used to lead tourists' behavior according to people's behavioral psychology.With Five Dragon Temple Cultural Park as case study,starting from its geographic location and establishment concept,the paper had extracted design theme of Five Dragon Temple Cultural Park.Profound religious cultural connotation had been given to the cultural park with Chinese traditional religion and "Five Elements" theory as the inspiration.It designed five main roads with different colors which represented five elements covering "gold,wood,water,fire and earth".Different scenic areas had been linked together by five man roads,forming a road landscape pattern of "meeting of five dragons".Then,flowering plants had been collocated along the five roads which were Vatica astrotricha,Punica granatum,Prunus serrulata,Morus alba and Osmanthus fragrans,creating theme-based road landscape not only representing religious significance but also corresponding with "Five Elements" theory.展开更多
Translation,as a medium of globalization and the means of overcoming the Babylonian curse,is approached differently by varied translation theories,among which the Skopos approach seems to the one that guides the trans...Translation,as a medium of globalization and the means of overcoming the Babylonian curse,is approached differently by varied translation theories,among which the Skopos approach seems to the one that guides the translation of the nomination dossier in an implicit manner.The dossier,distinct from other genres of texts,has a very clear function which explains why the Skopos theory plays an invisible hand throughout its translation.展开更多
According to the study made by United Nation Economic Commission for Africa, Ethiopia stands as one of the worst countries with respect to road safety performance in terms of traffic accident fatalities per 10,000 veh...According to the study made by United Nation Economic Commission for Africa, Ethiopia stands as one of the worst countries with respect to road safety performance in terms of traffic accident fatalities per 10,000 vehicles (i.e. 95 in 2007/8). Road safety generally depends on humans, vehicles, and highway conditions. These factors influence road safety separately or in combination. One of the basic means to improve road safety is to reduce hazardous conditions of roads. The main objective of this study is to identify and rank hazardous locations and propose appropriate simple and inexpensive countermeasures along Hawassa-Shashemene-Bulbula main two-lane rural road. Accordingly, the road and traffic data were collected from field investigation and Ethiopian Road Authority and accident data were gathered from police stations. Then, the study road equally divided into short sections of 1.5 km and traffic volume and accident frequencies assigned for each road site to predict theoretical frequencies of accident. Empirical Bayes method and Safety Performance Function have been used to estimate an index known as Potential for Safety Improvement (PSI) for each site of the study area to identify and rank road sites. The result showed that out of 43 road segments 22 of them were identified as dangerous road segments. Moreover, based on further criterion established for screening the ranked road sections 8 road segments were found the most dangerous road segments as they have contributed 76% of total PSI values. The degree of haphazardness of a given road segment in the study area has directly associated with the availability of risk indicating road and traffic factors. Finally, it recommends that regulatory body of road safety in the study area should give high priority and immediate response for the improvement of most dangerous road segments.展开更多
车辆临近交叉口的变道行为会制约交叉口通行效率的提升。基于此,本文提出一种网联车辆环境下城市道路交通流分段协同控制方法(Segmented Cooperative cOntrol Method for Urban Road Traffic Flow,SCOM-URTF),该方法采用双层优化模型,...车辆临近交叉口的变道行为会制约交叉口通行效率的提升。基于此,本文提出一种网联车辆环境下城市道路交通流分段协同控制方法(Segmented Cooperative cOntrol Method for Urban Road Traffic Flow,SCOM-URTF),该方法采用双层优化模型,实现路段功能区动态划分和路段—交叉口交通流的协同优化。上层模型设计了一种分车道速度诱导错位变道策略(Misaligned Lane-changing with Separated Lane Speed Guidance,ML-SLSG),通过纵向空间错位排列促成左转和右转车辆的快速变道,最小化车辆变道区长度,并均衡车道组交通流量;下层模型以最小化车均延误为目标,基于动态规划法协同优化网联车辆的轨迹与交叉口信号配时参数。仿真结果表明,ML-SLSG策略能有效缩短变道长度,在低、中和高这3种交通负荷下,本文提出的车辆纵向轨迹优化模型能使交叉口车均延误减少5.9%~8.0%,且与信号配时协同优化后,车均延误可再降低3.7%~22.8%。与同类方法对比研究表明,SCOM-URTF更适合多种驾驶行为相互协调的交通环境。敏感性分析显示,更高的CAV渗透率和道路限速有助于降低车均延误;增大交叉口间距可在初期减少车均延误,但达到临界点后会出现延误反弹,而轨迹与信号的协同优化能有效遏制延误的反弹。展开更多
基金Sponsored by Scientific Research Project of Public Welfare Industry of the Ministry of Land and Resources,China(201311006-4)
文摘From the perspective of ecological construction of roads, the reduction and purifying effects of greening plants on noise, raising dust and automobile exhaust, selection principles of arbors, shrubs, ground cover plants and herbaceous fl owers, and the methods of collocating arbors shrubs and grass in the construction of ecological roads were discussed in this study.
文摘The combination of ornamental function and recreational function should be taken into account in road landscape design of scenic area.The theme characteristic should be highlighted by designing techniques.Roads in scenic area should be used to lead tourists' behavior according to people's behavioral psychology.With Five Dragon Temple Cultural Park as case study,starting from its geographic location and establishment concept,the paper had extracted design theme of Five Dragon Temple Cultural Park.Profound religious cultural connotation had been given to the cultural park with Chinese traditional religion and "Five Elements" theory as the inspiration.It designed five main roads with different colors which represented five elements covering "gold,wood,water,fire and earth".Different scenic areas had been linked together by five man roads,forming a road landscape pattern of "meeting of five dragons".Then,flowering plants had been collocated along the five roads which were Vatica astrotricha,Punica granatum,Prunus serrulata,Morus alba and Osmanthus fragrans,creating theme-based road landscape not only representing religious significance but also corresponding with "Five Elements" theory.
基金the staged achievement of 2014 social sciences funded program of Education Department of Shaanxi Provincial Government-"Establishment of Bilingual Corpus of World Heritage Sites in Shaanxi Province"(14JK1768)
文摘Translation,as a medium of globalization and the means of overcoming the Babylonian curse,is approached differently by varied translation theories,among which the Skopos approach seems to the one that guides the translation of the nomination dossier in an implicit manner.The dossier,distinct from other genres of texts,has a very clear function which explains why the Skopos theory plays an invisible hand throughout its translation.
文摘According to the study made by United Nation Economic Commission for Africa, Ethiopia stands as one of the worst countries with respect to road safety performance in terms of traffic accident fatalities per 10,000 vehicles (i.e. 95 in 2007/8). Road safety generally depends on humans, vehicles, and highway conditions. These factors influence road safety separately or in combination. One of the basic means to improve road safety is to reduce hazardous conditions of roads. The main objective of this study is to identify and rank hazardous locations and propose appropriate simple and inexpensive countermeasures along Hawassa-Shashemene-Bulbula main two-lane rural road. Accordingly, the road and traffic data were collected from field investigation and Ethiopian Road Authority and accident data were gathered from police stations. Then, the study road equally divided into short sections of 1.5 km and traffic volume and accident frequencies assigned for each road site to predict theoretical frequencies of accident. Empirical Bayes method and Safety Performance Function have been used to estimate an index known as Potential for Safety Improvement (PSI) for each site of the study area to identify and rank road sites. The result showed that out of 43 road segments 22 of them were identified as dangerous road segments. Moreover, based on further criterion established for screening the ranked road sections 8 road segments were found the most dangerous road segments as they have contributed 76% of total PSI values. The degree of haphazardness of a given road segment in the study area has directly associated with the availability of risk indicating road and traffic factors. Finally, it recommends that regulatory body of road safety in the study area should give high priority and immediate response for the improvement of most dangerous road segments.
文摘车辆临近交叉口的变道行为会制约交叉口通行效率的提升。基于此,本文提出一种网联车辆环境下城市道路交通流分段协同控制方法(Segmented Cooperative cOntrol Method for Urban Road Traffic Flow,SCOM-URTF),该方法采用双层优化模型,实现路段功能区动态划分和路段—交叉口交通流的协同优化。上层模型设计了一种分车道速度诱导错位变道策略(Misaligned Lane-changing with Separated Lane Speed Guidance,ML-SLSG),通过纵向空间错位排列促成左转和右转车辆的快速变道,最小化车辆变道区长度,并均衡车道组交通流量;下层模型以最小化车均延误为目标,基于动态规划法协同优化网联车辆的轨迹与交叉口信号配时参数。仿真结果表明,ML-SLSG策略能有效缩短变道长度,在低、中和高这3种交通负荷下,本文提出的车辆纵向轨迹优化模型能使交叉口车均延误减少5.9%~8.0%,且与信号配时协同优化后,车均延误可再降低3.7%~22.8%。与同类方法对比研究表明,SCOM-URTF更适合多种驾驶行为相互协调的交通环境。敏感性分析显示,更高的CAV渗透率和道路限速有助于降低车均延误;增大交叉口间距可在初期减少车均延误,但达到临界点后会出现延误反弹,而轨迹与信号的协同优化能有效遏制延误的反弹。
基金supported by Key Research and Development Project of China(No.2021YFB1600104)National Natural Science Foundation of China(No.52002031)Scientific Research Project of Shaanxi Provincial Department of Transportation(No.20-24K,20-25X)。