A Novel Through Capacity Model for One-way Channel Based on Characteristics of the Vessel Traffic Flow
Journal Title: TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation - Year 2017, Vol 11, Issue 3
Abstract
Vessel traffic flow is a key parameter for channel-through capacity and is of great significance to vessel traffic management, channel and port design and navigational risk evaluation. Based on the study of parameters of characteristics of vessel traffic flow related to channel-through capacity, this paper puts forward a brand-new mathematical model for one-way channel-through capacity in which parameters of channel length, vessel arrival rate and velocity difference in different vessels are involved and a theoretical calculating mechanism for the channel-through capacity is provided. In order to verify availability and reliability of the model, extensive simulation studies have been carried out and based on the historical AIS data, an analytical case study on the Xiazhimen Channel validating the proposed model is presented. Both simulation studies and the case study show that the proposed model is valid and all relative parameters can be readjusted and optimized to further improve the channel-through capacity. Thus, all studies demonstrate that the model is valuable for channel design and vessel management.
Authors and Affiliations
Yuanyuan Nie, Kezhong Liu, Xuri Xin, Qing Yu
Navigation Simulator: Professional and Academic Learning Tool for the Students of the Portuguese Naval Academy
The Portuguese Naval Academy is a military school with an university status and is equipped with one modern navigation and maneuvering simulator. The Navigation Simulator (NAVSIM) plays an essential role in the academic...
Identifying and Analyzing Safety Critical Maneuvers from High Resolution AIS Data
We demonstrate the value in previously disregarded parameters in AIS data, and present a novel way of quickly identifying and characterizing potentially safety critical situations for vessels with a properly configured A...
Tworty Box to Improve the Equipment Logistics of Container Lines
A major share of all empty container positioning (deadheading) is resulting from imbalances with regard to container sizes (20ft/40ft). In order to reduce the shipments of 'containerised air' a new type of container has...
Maritime Situation Monitoring for Safe Navigation on Northern Sea Route
Considering growing intensity of navigation on Northern Sea Route and of continuous exploration and development of Arctic shelf, problems of maritime situation monitoring in Arctic become particularly important. Firstly,...
Human Error in Pilotage Operations
Pilotage operations require close interaction between human and machines. This complex sociotechnical system is necessary to safely and efficiently maneuver a vessel in constrained waters. A sociotechnical system consist...