Limitation for Inland Ships in the Area of Planned Multimodal Port on Vistula River

An Integrated Approach to an Assessment of Bottlenecks for Navigation on Riverine Waterways

“…Schoeneich et al [18] claim that the depths in bridge cross-sections are characterised by more stability than stretches on the free-flowing river. The pillar's location in bridge cross-sections is affected by increasing the river depth in these places.…”

“…The LWL value is the minimal distance from the waterline to the bottom of the river in the shipping lane's axis. The value 1.2 m is the minimal safety depth, and it is composed of the ship's draught T [m] (value determined in earlier research [18]) as well as the ship under keel clearance (UKC). The research was carried out for characteristic ships with pontoons (L = 100 m B = 12 m and T = 1.2 m) capable of transporting non-standard load with parameters: length 14.5 m, height 6.58 and breadth 5.5 m. The limitation of the water level HWL and LWL enables the showing of bottlenecks on a waterway.…”

“…Jóźwiak Z. and Bednarz D. explain that this process aims to prepare cargo, transport, and transport infrastructure for safe cargo movement for a determined distance [14]. The main reasons making it difficult and, at times, even impossible to use inland waterways for transporting non-standard or general oversized cargo are the low clearances under bridges and the unsatisfactory parameters of inland waterways-insufficient transit depths and small radii in bends on routes [17,18]. According to navigational hydrotechnical structures and the morphometry of the river channels are high-risk factors.…”

“…In several respects, winter is the best time to carry this type of cargo. A ship's directional stability and manoeuvrability change considerably as a function of the available under keel clearance [18]. As we can read in the PIANC Report n121-2014 and the Shallow Water Navigation Safety Guidelines, especially in natural waterways (rivers, estuaries) where the water level may vary significantly, both over the channel and over the tidal cycle, a ship's manoeuvring characteristics may be subjected to essential changes transit through the canal.…”

“…In light of available knowledge and literature according to problems which could appear during the transport of cargo on inland waterways [18,20,28] challenges us to demonstrate the possibility of non-standard load transport on waterways with a shallow channel bed such as the Vistula River in Poland. The main objective of the research was to develop a comprehensive toolkit for preliminary analysis of the safety conditions for oversized cargo transport on waterways with a shallow riverbed.…”