专线

This paper analyzed the reasons for the rapid development of MPLS VPN. The problems of MPLS VPN were studied. The application of MPLS VPN in leased line market was explored.

本文分析了MPLS VPN在专线市场发展较快的原因和发展中遇到的问题，并对MPLS VPN在专线市场的各个具体领域的应用发展做了详细分析。

In this paper, a multi-object optimum model of passenger train plans for dedicated passenger traffic lines is established by balancing benefits of both railway transportation corporations and passengers, and a method to solve optimization of passenger train plans is given.

通过分析铁路客运专线的相关收益及费用，从铁路运输企业和旅客两方面的利益出发建立了客运专线相关旅客列车开行方案的多目标优化模型，提出了优化旅客列车开行方案的求解方法。

The construction of the high speed passenger railways is an important project to implement the great-leap-forward development and improve the service quality of the railway in China.

客运专线的建设，是我国铁路实施跨越式发展、进一步提高铁路服务质量的一项重要工程。根据《铁路中长期发展规划》，2020年前我国将建成1.2万km客运专线网。