Shipping management has an essential influence on the development of shipping industry. Management efficiency is one of the important indexes to measure the quality of shipping management. This paper aims to assess the management efficiency from a new perspective of congestion index to point out the causes affecting efficiency and provide suggestions to the shipping company. Based on a two-stage data envelopment analysis, we establish a novel congestion management system to comprehensively examine the organization's congestion from three aspects, including the macro-level, the micro-level, and resource allocation. Accordingly, we apply three congestion models, namely stage congestion, slack-based congestion, and resource reallocation congestion, respectively, to measure Hapag-Lloyd's congestion index from 2017 to 2020. We find that: 1) Hapag-Lloyd's capacity is higher than its market share; 2) major events (e.g., merger and acquisition, COVID-19) have significant impacts on the congestion index of the company; 3) excessive redistributable resource input invalidate the congestion index.

航运管理对航运业的发展有着至关重要的影响。管理效率是衡量运输管理质量的重要指标之一。本文旨在从拥挤指数的新视角评估管理效率，指出影响效率的原因，并为航运公司提供建议。在两阶段数据包络分析的基础上，我们建立了一个新颖的拥塞管理系统，从宏观，微观和资源分配三个方面全面研究了组织的拥塞。因此，我们分别使用阶段拥塞，基于松弛的拥塞和资源重新分配拥塞的三种拥塞模型来衡量赫伯罗特劳埃德2017年至2020年的拥塞指数。我们发现：1）赫伯罗特的产能高于其市场份额；2）重大事件（例如，并购，COVID-19）对公司的拥挤指数有重大影响；3）过多的可再分配资源输入使拥塞指数无效。