对比中德两国关于道路限速及车道管理的交通法规、道路交通标志设置实践的异同，分析了我国道路限速及车道管理实践中存在的问题，并借鉴德国经验，以我国双向4车道和8车道高速公路限速及车道管理的交通标志设置为例，给出了标志设置方案建议，即：货车（或大型车）靠右侧车道行驶，针对客车、货车（或小客车、大型客车、货车）采用不同限速值标志分开设置，根据情况或需要限制货车超车。最后提出了我国交通法规关于道路限速及车道管理方面的修订建议，以及技术研究与规范制定、交通管理实践、驾驶人教育与培训等方面的改进建议。

This article compares the similarities and differences between the traffic laws and road traffic sign setting practices of Chinese and German road speed limit and lane management, analyzes the problems existing in the practice of road speed limit and lane management in China. Drawing on the German experience, the settings of traffic signs for speed limit and lane management of two-way four-lane and eight-lane expressways in China are taken as examples. Therefore, the suggested sign setting schemes are given, namely: trucks (or large vehicles) drive in the right lane; passenger cars and trucks (or small passenger cars, large passenger cars and trucks) adopt different speed limit signs that should be set separately; and trucks are restricted from overloading according to the situation or needs. Finally, this article proposed amendments to China′s traffic laws on road speed limit and lane management, as well as improvements in technical research and specification formulation, traffic management practices, driver education and training.