中文摘要：

针对“潮汐交通”问题所引起的道路资源利用不合理的现象，文章提出了考虑可变车道优化的交通网络设计问题，旨在通过合理的路段拓展和车道配置方案来提高交通网络的运行效率；构建了一个双层规划模型来描述提出的交通网络设计问题，上层问题以系统总阻抗与总投资额之和最小为目标，制定最优的道路拓展方案，并针对道路网络早晚高峰不同的OD需求水平，分时段对车道进行优化配置，下层模型采用了用户平衡（UE）配流模型来描述出行者在不同时段的路径选择行为；设计了人工蜂群算法来求解此双层规划模型。最后，采用数值算例验证了文中模型与算法的有效性。

英文摘要：

Unreasonable utilization of road resources can be arisen due to tidal traffic. To overcome this problem, a transportation network design problem（NI）P） with consideration of optimization of variable lanes is proposed. The proposed NDP aims to improve traffic efficiency by designing reasonable road network and lane allocation. A hi-level programming model is developed to formulate the proposed NDP. The upper level problem aims to minimize the sum of the total system travel cost and the total investment by optimizing road expanding scheme. With consideration of the different OD demand levels in the morning and evening peak hours, the lane allocation schemes in different traffic demand periods are also optimized. The lower level problem is formulated as a user equilibrium（UE） traffic assignment model to describe travelers~ route choice behavior during different traffic demand periods. An artificial bee colony（ABC） algorithm is introduced to solve the proposed hi-level model. Finally, a numerical example is developed to illustrate the effectiveness of the proposed model and algorithm.