公交专用道的运行状态及对社会车道的影响

本文提出了一种分析已有公交专用道运行状态的方法.通过计算公交车道和社会车道上的饱和度,来确定公交车道和社会车道的服务水平,并结合公交专用道上各车型所占比例,分析公交专用道的运行情况及其对社会车道的影响,指出存在的问题和可能的改进措施.     

快速公交(BRT)线路布设优化算法研究

快速公交(BRT)在我国方兴未艾,而目前缺乏实用的快速公交线网布局优化方法。针对传统直达客流方法应用于快速公交线网布局优化的不足,根据快速公交的特点和功能定位,提出了以直达客流运输密度最大和直达客流绕行系数最小为目标的快速公交线网布局双层非线性优化模型,对模型合理性进行了论证,并提出了简单容易操作的实用求解算法。     

HOV车道在上海城市交通管理中的应用探讨

介绍HOV(高承载率车辆)车道的概念及在洛杉矶的发展过程;针对上海目前公交专用道利用率不高的现象,提出利用公交专用道的富余设置HOV车道的设想;从必要性及可行性两方面运用数据对上海市延安东路隧道和四平路—中山东路的道路状况分析说明。     

快速公交（BRT）线路布设优化算法研究

快速公交（BBT）在我国方兴未艾，而目前缺乏实用的快速公交线网布局优化方法。针对传统直达客流方法应用于快速公交线网布局优化的不足，根据快速公交的特点和功能定位，提出了以直达客流运输密度最大和直达客流绕行系数最小为目标的快速公交线网布局双层非线性优化模型，对模型合理性进行了论证，并提出了简单容易操作的实用求解算法。     

PDM在客车制造企业的应用规划

PDM（产品数据管理）技术在制造业中的应用正在迅速普及。本文结合为武汉客车厂开发PDM的实际经验。阐述客车制造企业开发PDM的规划。     

论我国城市客车工况循环标准修改的重要性

介绍国内外城市客车工况循环的现状.通过分析指出,我国现有的城市客车四工况循环已不能满足城市客车与电动客车研发的需要,并针对此标准提出修改建议.     

基于控制器局域网总线的微机化站间闭塞系统

随着计算机技术及现代通信技术的发展,研究用现代技术改造现有的继电半自动闭塞成为可能.分析了以CAN总线控制技术和容错技术为基础构成微机化站问闭塞系统的可行性,并提出了实施方案.     

Comparing operator and users costs of light rail, heavy rail and bus rapid transit over a radial public transport network

A model to compare three alternative forms of public transport - light rail, heavy rail and bus rapid transit - is developed for an urban network with radial lines emanating from the borders to the city centre. The theoretical framework assumes an operation aimed at minimising the total cost associated with public transport service provision, which encompasses both operator and users costs. The decision variables are the number of lines (network density) and the frequency per period for each mode. This approach has no prejudices a priori in respect of whether a specified delivery scenario is aligned with existing modal reputation. Rather, we establish the conditions under which a specific transit mode should be preferred to another in terms of the operator (supply) and user (demand) side offerings. The model is applied using data from Australian cities, suggesting that in most of the scenarios analysed a high standard bus service is the most cost-effective mode, because it provides lower operator costs (infrastructure, rolling stock and operating cost), access time costs (due to a larger number of lines) and waiting time cost (due to larger frequencies of operation). A rail mode, such as light rail or heavy rail, may have a lower total cost only if it is able to run faster than bus rapid transit, and the difference in speed is enough to outweigh the bus advantage on operator cost and access and waiting times.     

神经网络在客车车身造型美学评价中的应用研究

提出基于人工神经网络（ANN）对客车车身造型进行美学评价的计算机辅助方法,阐述了用于“准三维”造型评价的BP网络结构以及造型特征提取技术。初步创建了智能化客车造型美学评价软件,并将其应用到实际客车造型评价中,使用效果良好。