Hierarchical modeling of perceived collision risks in port fairways


Autoria(s): Debnath, Ashim Kumar; Chin, Hoong Chor
Data(s)

2009

Resumo

Navigational collisions are one of the major safety concerns in many seaports. Despite the extent of recent works done on port navigational safety research, little is known about harbor pilot’s perception of collision risks in port fairways. This paper uses a hierarchical ordered probit model to investigate associations between perceived risks and the geometric and traffic characteristics of fairways and the pilot attributes. Perceived risk data, collected through a risk perception survey conducted among the Singapore port pilots, are used to calibrate the model. Intra-class correlation coefficient justifies use of the hierarchical model in comparison with an ordinary model. Results show higher perceived risks in fairways attached to anchorages, and in those featuring sharper bends and higher traffic operating speeds. Lesser risks are perceived in fairways attached to shoreline and confined waters, and in those with one-way traffic, traffic separation scheme, cardinal marks and isolated danger marks. Risk is also found to be perceived higher in night.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/50705/

Publicador

Transportation Research Board of the National Academies

Relação

http://eprints.qut.edu.au/50705/2/50705.pdf

DOI:10.3141/2100-08

Debnath, Ashim Kumar & Chin, Hoong Chor (2009) Hierarchical modeling of perceived collision risks in port fairways. Transportation Research Record, 2100, pp. 68-75.

Direitos

Copyright 2009 Transportation Research Board of the National Academies

Fonte

Faculty of Health

Palavras-Chave #090507 Transport Engineering #091100 MARITIME ENGINEERING #Navigational collision risk #Risk perception #Fairway #Harbor pilot #Hierarchical regression.
Tipo

Journal Article