求翻译：1) 阐述本文的研究背景、研究目的、研究意义以及国内外的相关研究现状，为交通信号控制算法的设计和相关数学优化模型的建立提供参考依据，通过对已有研究成果的分析，提出本文研究的范围和技术路线。是什么意思？

1) describes the research background, research objectives, research significance, as well as domestic and foreign research status, provide a reference for the traffic signal control algorithm design and mathematical optimization model, through the analysis of existing research results, this article

1) * The research background on this article, the research objectives, research at home and abroad as well as research on the status quo, for traffic signal control algorithm design and related mathematical optimization model with the establishment of reference, and have been through analysis of the

1) Elaborated this article research background, the research goal, the research significance as well as the domestic and foreign correlation research present situation, provides the reference for the traffic signal control algorithm design and the correlation mathematics optimization model establish

1) set out this research background, objectives, research, as well as related research at home and abroad, for traffic signal control algorithm design and optimization mathematical model of providing reference basis, through the analysis of existing research results, proposed scope of this study and

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