共查询到19条相似文献,搜索用时 281 毫秒
1.
道路风险分析与评估管理系统研究初探 总被引:2,自引:0,他引:2
本研究的目的是初步探讨在我国建立道路风险评估的理论,使之体系化。在大量文献综述的基础上,总结归纳了道路风险的内容,并分析了道路风险具有的客观性、突发性、损害性、随机性和发展性。根据风险管理理论,构建了道路风险评估系统框架,包括道路风险识别系统、道路风险判断系统、道路风险分析系统和道路风险管理决策系统。运用全面、综合、体系化的道路风险评估系统来管理各个道路风险事件,可以减轻或者消除道路风险事件的影响。 相似文献
2.
3.
一、贴近保障任务,立足“缺什么补什么”
一要针对边海防道路特点,突出边境道路、山地道路、复杂道路、狭窄道路、蹋方道路、泥泞道路、涉水道路等具有边海防特点的道路驾驶训练,锤炼驾驶员复杂路况的驾驶技能。 相似文献
4.
5.
为推动智慧道路建设,增强道路网络运行的整体感知能力,实现道路网络管理、车辆道路协调和旅行信息服务智能化,全面提高道路网络运行效率和交通安全水平,文中考虑车路协同的需求,提出智慧道路系统框架,揭示智能道路的外部配置和内部机制,为智能道路研究和施工提供参考。 相似文献
6.
7.
道路安全审核的目的是扩大道路的安全空间,提高道路的宽容度.道路安全审核贯穿于道路项目的各个阶段,在道路竣工验收中进行道路安全审核,不仅可以审核前期阶段道路工程项目的完成情况,而且可以在预通车和正式通车之前及时发现道路交通安全隐患,提出可行的、有效的整改措施,从而最大限度地避免后期交通事故的发生.首先介绍了道路安全审核的现状,尤其是道路竣工验收中的安全审核现状,然后分析了在道路竣工验收中进行安全审核的意义;然后论述公安机关交通管理部门参与道路安全审核的依据;最后提出了道路竣工验收阶段进行道路安全审核的解决方案. 相似文献
8.
目前,城市景观性道路绿化的需求日益增多,因此如何有效提升城市景观性道路绿化效果具有现实指导意义。城市景观性道路绿化主要是对道路绿化空间布局、道路绿化空间尺度与配置结构、道路绿化品种选择等方面进行有效控制,以提高城市景观性道路绿化效果。以重庆大学城虎曾路段景观道路绿化设计为例,对上述绿化控制要点及其在城市景观性道路绿化设计中的运用进行分析和阐述。 相似文献
9.
10.
11.
公路路基是整个路面的基础部分,路基质量的好坏对整条公路质量影响巨大,为了提高路基的工程质量,确保公路使用的安全性以及长久性,必须提升对路基处理的技术与规范。特殊路基因其组成成分与一般路基不同,所以使用一般路基处理技术无法满足工程需要。针对山西省常见的特殊路基,进行相应处理措施的探讨。 相似文献
12.
Christian Gorges Kemal Öztürk Robert Liebich 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2018,56(8):1289-1314
This publication presents a three-part road classification system that utilises the vehicle's onboard signals of two-wheeled vehicles. First, a curve estimator was developed to identify and classify road curves. In addition, the curve estimator continuously classifies the road curviness. Second, the road slope was evaluated to determine the hilliness of a given road. Third, a modular road profile estimator has been developed to classify the road profile according to ISO 8608, which utilises the vehicle's transfer functions. The road profile estimator continuously classifies the driven road. The proposed methods for the classification of curviness, hilliness, and road roughness have been validated with measurements. The road classification system enables the collection of vehicle-independent field data of two-wheeled vehicles. The road properties are part of the customer usage profiles which are essential to define vehicle design targets. 相似文献
13.
14.
15.
Francis John Gichaga 《国际交通安全学会研究报告》2017,40(2):72-75
This paper presents the historical and cultural background relating to road improvement and road safety characteristics in Kenya, a developing country in East Africa. Some who come from low-developed areas of developing countries often take time to comprehend the modern transportation infrastructure, especially roads, and have difficulty assimilating and customizing the same to their culturally tailored modes.This paper discusses two case studies: one on the socio-economic impact following improvements to a 50-km, high-class, high-traffic-volume road and the other on the monitoring and evaluation of road safety aspects along the Northern Corridor in Kenya also following major road improvements.The road improvements to the Nairobi-Thika Highway (a trunk road) have attracted many investors along the highway corridor. The high-speed road has also brought with it the unfortunate consequence of speeding vehicles colliding with pedestrians crossing the road at undesignated locations.The Northern Corridor, the transportation corridor that links the Great Lakes Countries of the Democratic Republic of Congo, Burundi, Rwanda, and Uganda from the port of Mombasa in Kenya, has had high accident rates for a considerable amount of time. The results of monitoring and evaluation exercises on the Northern Corridor have shown that drivers are the major contributors in causing accidents, with a component ratio of 49.4%; pedestrians are next at 21.7%. Data also shows that 24% of the accidents along the Northern Corridor are fatal, which is of major concern. The study additionally indicated that the majority of road users have not been exposed to education or training on road safety.This paper presents a number of recommendations arising from the road safety study regarding possible improvements in aspects of road safety along the corridor and potential applications of those changes to other roads in general. For example, there are recommendations related to the geometric design of the road, driver training and behavior, vehicle maintenance, and the need to enhance road safety through the utilization of road safety parks where road users can undergo training and drills on road safety aspects.In conclusion, we argue that the rehabilitation of the Northern Corridor from Mombasa on the Kenyan coast to the border with Uganda has led to significant road safety improvement. 相似文献
16.
道路线形参数计算对于公路现状调查、道路优化设计、道路信息管理、安全分析和建立公路的三维空间模型均具有重要意义。根据道路线形的特点,利用基于Hough变换的直线和圆曲线提取算法对数据进行分组,然后利用稳健估计对数据进行迭代平差,计算出道路各段线形参数,从而实现道路线形识别的目的。算法由Visual C 语言实现,在实践中证明是很有效的。 相似文献
17.
18.
随着经济的发展,我国汽车保有量逐年增多,城市道路交通日显拥挤,道路网络建设日益错综复杂。为了缓解城市的交通压力,各地增加了各种各样设计的立体交叉桥、隧的建设,而立交桥对城市景观有较大的影响,特别是位于城市环境较为敏感的地区,由此会采用主要道路下沉实现立体交叉。目前来看,道路下沉主要分为两种,一种为被交路采用桥梁方式跨越地下道路;另一种为在下沉道路设置框架结构,而被交路位于框架结构的上方通行。通过实际案例分析采用放坡式边坡的下沉式道路的适用情况、对相关问题采取的措施及需要注意的事项等。 相似文献
19.
在回顾分析一般公路网合理发展规模确定方法的基础上,对影响收费公路合理规模的3个要素的地位和作用进行了分析,提出了收费公路合理规模确定的原则.结合收费公路的特点,从收费公路规划决策者和用户的角度,建立基于双层规划的收费公路合理规模优化模型.其中上层模型是从收费公路规划决策者的角度出发,优化收费公路规模,使得收费公路总效益最大化;而下层从用户的角度出发,采用随机用户平衡模型来描述用户的出行规律,合理安排出行者的出行路线.采用遗传-模拟退火算法混合优化策略对该模型进行求解,提出求解思路和步骤.并结合河南省收费公路合理规模确定实例,对模型科学性进行了验证. 相似文献