排序方式: 共有128条查询结果,搜索用时 171 毫秒
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《铁道标准设计通讯》2017,(1):15-20
长株潭城际铁路是长株潭城市群城际铁路网的骨架线路和核心部分,主要承担着长沙至株洲、湘潭间城际客流运输并兼顾主城区城市轨道交通功能。结合既有及规划的铁路客运设施布局、城市发展规划,从既有及规划铁路资源利用、城际铁路与城市发展相互促进等方面,研究4个引入长沙铁路枢纽研究方案。通过对吸引客流能力、工程可实施性、与其他线路衔接情况、点线能力和工程投资等因素分析,建议长株潭城际铁路引入长沙铁路枢纽采用引入长沙站方案。 相似文献
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Hassan A. Karimi 《智能交通系统杂志
》2014,18(3):286-298
》2014,18(3):286-298
The positioning quality of global navigation satellite system (GNSS), or GNSS quality of service (QoS), is a major factor impacting real-time navigation performance. Commonly requested routes (i.e., shortest or fastest) may include areas with poor GNSS QoS, which can subsequently degrade navigation performance. To provide alternative routes with high or acceptable GNSS QoS along a route, a novel optimal routing for navigation systems/services based on GNSS QoS by utilizing integrated GNSS (iGNSS) QoS prediction is presented in this article. New routing criteria based on GNSS QoS are maximum availability, maximum accuracy, maximum continuity, and maximum reliability. Two experiments were conducted to compare GNSS QoS-based routes against shortest routes. In one experiment, routes were simulated, and in another, generated routes based on GNSS QoS were evaluated against GPS-based trajectories as ground truths. The results show that GNSS QoS-based routes provide routes with higher QoS, more than 50%, and longer, about 50%, than shortest routes. 相似文献
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道路交通安全管理规划理论与应用研究 总被引:6,自引:1,他引:5
分析了我国近年来道路交通安全形势,结合〈中华人民共和国道路交通安全法〉的要求,对编制道路交通安全管理规划的相关理论进行了研究.研究从探讨道路交通安全系统出发,提出了道路交通安全管理规划的定义和编制规划应遵循的原则,并给出了规划思路、规划技术路线和规划内容的建议.最后结合城市介绍了规划的实际编制过程. 相似文献
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