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The use of an unmanned aerial vehicle to acquire data to develop inland electronic navigational charts: The case of a bridge and the navigation infrastructure located on it

Łubczonek Jacek

Zeszyty Naukowe Akademii Morskiej w Szczecinie

2021

nr 68 (140)

119--127

Unmanned aerial vehicle (UAV) technologies are becoming increasingly common, with ever-expanding applications. Low-altitude imaging makes it possible to quickly acquire high-resolution data for various objects, especially for mapping. This paper presents the mapping of a bridge and its notice marks, lights, and span to produce electronic navigation charts for inland navigation. The research object was the Clowy Bridge on the Regalica River in Szczecin, Poland. In order to carry out the research, two photogrammetric flights were made, and three sets of photos were created, from which orthophotos were developed. The research included the analysis of the orthophoto generation process, as well as quantitative and qualitative analyses. The results of the research demonstrated the possibility of using this type of data for mapping bridges to create electronic navigation maps for inland navigation.

Transport and economic effects related to navigational restoration of the Lake Dąbie fairway

Bernacki Dariusz, Lis Christian

Zeszyty Naukowe Akademii Morskiej w Szczecinie

2019

nr 59 (131)

53--61

The aim of this paper is to identify and quantify the direct economic effects resulting from navigational restoration of the Dąbie Lake inland fairway, a part of the West Pomeranian region (PL) transport system that runs across the Dąbie Lake. This narrow and shallow inland fairway constitutes the bottleneck for inland waterway freight transport, which must therefore use the sea fairway and thereby incur extended time, increased cost, and reduced efficiency of inland waterway transport. The paper’s second section presents the transport and microeconomic effects that restoring the fairway’s navigability across Lake Dąbie would have on the inland navigation system, thereby increasing the capacity, effectiveness, and safety of inland waterways freight traffic. Restoration of the inland fairway would significantly reduce generalized and external costs of inland waterways transport.