关键词: 水路运输, 基尔运河, 元胞自动机模型, 船舶交通流, 瓶颈识别

Abstract:

For improving the traffic efficiency of wide and narrow alternating waterways, considering Kiel Canal as an example, according to the structural characteristics of Kiel Canal with alternating width and narrow sections, a two-way ship traffic flow cellular automata model is established, and the simulation of ships passing through Kiel Canal is studied. Cellular space is set up according to the actual structure of Kiel Canal, and the evolution rules are set up based on the fixed block theory and moving block theory. In particular, due to the structure of Kiel Canal, large ships cannot pass simultaneously in the narrow section. Therefore, appropriate waiting rules are established in the cellular automata model. In the simulation and analysis, the influence of different ship inflow rates, proportions of large and small ships, and safety distance between ships is mainly discussed. Based on the simulation results, the bottleneck identification and improvement strategy are further studied for improving ships passing through Kiel Canal. The results show that the bottleneck lies in the long narrow section of Kiel Canal, which makes a large number of ships waiting in the canal.

Key words: waterway transportation, Kiel Canal, cellular automata model, ship traffic flows, bottleneck identification