搜索结果: 106-120 共查到“知识库 交通运输工程其他学科”相关记录603条 . 查询时间(0.921 秒)
The evaluation of investment projects within the territory of development
sustainable development transport system infrastructure socio-economic evaluation cost-benefit analysis multicriteria analysis
2010/10/29
Sustainable development is the most researchable sphere of many experts in urbanistics, architecture, transport, environment and economics in Lithuania. Every period of time has specific problems and ...
A proposal for the models and measures of search and rescue on inland waterways
search rescue search model inland waterways measures safety
2010/10/29
Search and rescue on inland waterways are considered to be insufficiently developed. The methods of search and rescue have been developed only for sea waterways. Despite the possibilities of compariso...
Route planning methodology of an advanced traveller information system in Vilnius city
advanced traveller information system route planning real-time traffic data travel time
2010/10/29
As a subsystem of an Intelligent Transportation System (ITS), an Advanced Traveller Information System (ATIS) disseminates real-time traffic information to travellers. To help them with making better ...
Statistical probability evaluation of operating ITS
Intelligent Transport Systems (ITS) information control systems ITS efficiency statistical information random factors and their classification
2010/10/29
Intelligent Transport Systems (ITS) work with information and control technologies providing the core of ITS functions. Some of these technologies like loop detectors are well known to transportation ...
Traffic and environmental street network modelling: Belgrade case study
transportation planning transport demand modeling environmental calculation speed scenarios road transport emissions
2010/10/29
The paper presents a procedure for modelling transport demand and analyses effects caused by changes in the characteristics of street network exploitation. Based on the effects of the measures predomi...
The effect of ethanol, petrol and rapeseed oil blends on direct injection diesel engine performance and exhaust emissions
diesel engine ethanol petrol rapeseed oil performance efficiency emissions smoke opacity
2010/10/29
The article deals with the testing results of a four stroke four cylinder, DI diesel engine operating on pure rapeseed oil (RO) and its 2.5vol%, 5vol% and 7.5vol% blends with ethanol (ERO) and petrol ...
Evaluation of land use-transportation systems with the Analytic Network Process
Evaluation land use-transportation systems the Analytic Network Process
2010/10/25
Developments in models and methods of urban systems have increasingly drawn attention to the joint effect of land use and transportation on behavioral and policy relevance, with multicriteria evaluati...
Orbital motorways are major structuring elements in the metropolitan areas of developed countries. They can be considered as key components within the transport network of large urban agglomerations, ...
考虑交叉口转向延误的最短路径拍卖算法
最短路径 拍卖算法 交叉口延误 转向限制
2010/8/26
为了改进传统算法求解最短路径时运算量大且无法计算交叉口转向延误的不足,提出可直接求解受限路网中两点之间最短路径的改进拍卖算法. 将价格矢量扩展至二维,解决了价值量被不同转向行为共用的问题.设计了节省存储空间的数据存储结构,可准确描述交叉口转向行为,且便于检索. 针对不同规模和密度的随机路网,比较了改进算法和Dijkstra 算法求解单一起、终点之间的最短路径问题. 结果表明,在含5 000 个结点...
为帮助驾驶员发现目标车道侧后方车辆尤其是视野盲区内车辆,从而避免或减少换道过程中发生的交通事故,提出了日间在高速公路上识别侧后方车辆的新方法. 根据路面灰度值,将日间图像分为正常光照和弱光照两类. 由于车辆阴影的灰度小于路面平均灰度,根据两侧车道区域内存在的灰度突变确定出侧后方车辆的可能存在区域. 对确定的区域采用相应的阈值分割方法进行图像分割. 在对分割后的二值化图像去噪、边缘提取和细化,以及提...
Managing Optimism Biases in the Delivery of Large-Infrastructure Projects: A Corporate Performance Benchmarking Approach
Managing Optimism Biases the Delivery of Large-Infrastructure Projects A Corporate Performance Benchmarking Approach
2010/8/16
Optimism bias has been a considerable challenge in the planning and delivery of public services, particularly infrastructure mega projects. This has resulted in consistently underestimated costs and o...
宁波轨道交通试验段地下连续墙槽段稳定性分析
轨道交通 地下连续墙 超载 稳定
2012/9/27
以宁波轨道交通试验段车站深基坑地下连续墙为工程背景,采用抛物线柱体模型对有超载工况地下连续墙的槽壁稳定性进行分析.探讨了护壁泥浆作用下,模型参数对槽段稳定的敏感性及安全系数的影响.结果表明:地下连续墙施工槽段是稳定的.对槽段平面位置、深度和垂直度进行的检测也验证了计算结果的正确性,可为宁波地区类似工程提供理论和实践依据.
针对轨道交通建设工程招标管理现状，系统阐述了招标规范化管理的重要意义。结合工作实际，介绍了规范化招标管理的实践运用及效果。最后就进一步规范招标管理提出了若干应注意的问题和建议。
介绍了激光测距的原理及激光测距技术在城市轨道交通直线电机气隙测量中的应用，并提出了实际测量中相关问题的解决方法。
Comparable analysis of information and communication technologies in Lithuania and Finland
information communication technologies industry transport logistics
2010/10/29
Information exchange and making business transactions via the Internet and E-mail are very common nowadays. Thus, it is very important to investigate the use of applied Information and Communication T...