On the Separation of Traffic at Straight Waterway by Distribution Model of Ship's Paths

Inoue, Kinzo

doi:10.9749/jin.58.103

Cited by 11 publications

(11 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a result, it was analyzed that the ship passing through the approach area of Busan Port had a passage that deviated in the direction of the breakwater, and as it approached the breakwater, and the standard deviation was also analyzed to decrease. Inoue (1977) demonstrated that the traffic probability distribution in the fairway is a normal distribution. However, as a result of the passage pattern analysis according to the marine traffic analysis, the passage pattern was analyzed to be different from the general passage pattern when passing near the breakwater.…”

Section: Gateline Analysismentioning

confidence: 99%

A Study on the Estimation of Optimal Traffic Distribution near Breakwater in Busan Port

Son

Lee

Cho

2020

Journal of International Maritime Safety, Environmental Affairs

View full text Add to dashboard Cite

Section: Gateline Analysismentioning

confidence: 99%

A Study on the Estimation of Optimal Traffic Distribution near Breakwater in Busan Port

Son

Lee

Cho

2020

Journal of International Maritime Safety, Environmental Affairs

View full text Add to dashboard Cite

“…Many studies have been conducted on the traffic distribution and patterns in a port because these are important for understanding and analyzing the flow of ships. Inoue [35] demonstrated that the traffic distribution for 1-way or 2-way traffic is a normal distribution. Kim and Kwon [36] assumed a normal distribution in analyzing the collision probability of the Mokpo bridge and Incheon bridge.…”

Section: Normality Testmentioning

confidence: 99%

“…A ship can pass from the fairway's center to the right of the ship's bow direction. Considering these characteristics, the distance between the ship and bridge pier on the right side of the ship's bow side was measured and a normality test was conducted [35].…”

Section: Normality Testmentioning

confidence: 99%

An Investigation of the Ship Safety Distance for Bridges across Waterways Based on Traffic Distribution

Son

Lee

et al. 2020

JMSE

View full text Add to dashboard Cite

For ship passage safety, a bridge across a waterway is a risk for accidents. However, no standard for the safe distance between a bridge and a ship is available in Korea. The UK MCA considers the 90% confidence interval of traffic distribution as the acceptable passage range, using it for measuring the separation between offshore wind farms. In this study, an optimal ship safety distance is proposed by evaluating traffic distribution at the Incheon and Busan harbor bridges and analyzing the confidence intervals. The results, based on the Z-score, reveal that at the Incheon bridge, all but one ship for 2-way departure were in circulation within the 95% confidence interval range, whereas at the Busan harbor bridge, six ships for arrival and two ships for departure were outside the 95% range. Based on the results of this study, the design of bridges across waterways can incorporate traffic distribution corresponding to each port.

show abstract

“…(d ) gas tankers, (e) oil tankers, and, for both loaded and ballast conditions: Fujii et al [10] and Inoue [11], giving empirical expressions for the distribution parameters. More (d ) speed, recent radar observations have been published by (e) draught, Gluver and Olsen [12] and Randrup-Thomsen et al…”

Section: Notationmentioning

confidence: 99%

“…Fig 11. Horizontal force indentation as a result of a collision between a concrete bridge and a 10 m wide ship's deck house…”

mentioning

confidence: 99%

Collision risk for fixed offshore structures close to high-density shipping lanes

Pedersen

2002

Proceedings of the Institution of Mechanical Engineers, Part M:

View full text Add to dashboard Cite

Fixed offshore structures in the vicinity of intense ship traffic pose a potential collision hazard such as risk of loss of life, economic loss, environmental damage and other possible unwanted events. Therefore, one of the many performance goals in the design phase of such structures is to ensure that the risk of such major accidents and service disruptions is low enough to be acceptable to users, the public and those responsible for public safety. The present paper uses a risk analysis performed for a large suspension bridge with approach spans as an example of the key elements required in a rational risk analysis procedure for fixed offshore structures in shipping lanes with high traffic densities. It deals with the following items: the basic information and the navigational studies needed for a rational collision risk assessment, exemplification of target risk acceptance criteria for the bridge structure, an analysis procedure for ship collision frequencies as a function of the structural layout, elements in a calculation of the probabilistic distribution of collision forces on the fixed structure, given a collision has taken place, and finally it is shown how the consequences due to accidental ship collisions can be assessed, i.e. the risks that have to be compared to the target risk acceptance criteria. The main objective of the procedure is to provide the designers with the maximum flexibility to develop new cost effective offshore structures based on performance standards for the structural requirements and the requirements to the navigational arrangements, instead of basing the design on the more traditional prescriptive rules or codes. For the example bridge structure it is shown that fulfilment of the established risk criteria substantially influences the geometric requirements for the navigation clearance and the needed resistance to ship, impacts. In addition it was found necessary to establish a vessel traffic system (VTS).

show abstract

On the Separation of Traffic at Straight Waterway by Distribution Model of Ship's Paths

Cited by 11 publications

References 0 publications

A Study on the Estimation of Optimal Traffic Distribution near Breakwater in Busan Port

A Study on the Estimation of Optimal Traffic Distribution near Breakwater in Busan Port

An Investigation of the Ship Safety Distance for Bridges across Waterways Based on Traffic Distribution

Collision risk for fixed offshore structures close to high-density shipping lanes

Contact Info

Product

Resources

About