Please use this identifier to cite or link to this item: https://doi.org/10.3141/2100-08
Title: Hierarchical modeling of perceived collision risks in port fairways
Authors: Debnath, A.K. 
Chin, H.C. 
Issue Date: 2009
Source: Debnath, A.K., Chin, H.C. (2009). Hierarchical modeling of perceived collision risks in port fairways. Transportation Research Record (2100) : 68-75. ScholarBank@NUS Repository. https://doi.org/10.3141/2100-08
Abstract: Navigational collisions are one of the major safety concerns in many seaports. Despite the extent of work recently done on port navigational safety, little is known about harbor pilots' perception of collision risks in port fairways. The study described in this paper used a hierarchical ordered probit model to investigate the associations between perceived risks and the geometric and traffic characteristics of fairways and pilot attributes. Perceived risk data, collected through a risk perception survey of Singapore port pilots, were used to calibrate the model. The intraclass correlation coefficient justified the use of the hierarchical model rather than an ordinary model. The results show higher perceived levels of risk in fairways attached to anchorages and in those featuring sharper bends and higher traffic operating speeds. Lower levels of risk were perceived in fairways attached to the shoreline and confined waters and in those with one-way traffic, a traffic separation scheme, cardinal marks, and isolated danger marks. The level of risk was also found to be perceived higher at night.
Source Title: Transportation Research Record
URI: http://scholarbank.nus.edu.sg/handle/10635/65662
ISSN: 03611981
DOI: 10.3141/2100-08
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

9
checked on Dec 6, 2017

WEB OF SCIENCETM
Citations

7
checked on Nov 17, 2017

Page view(s)

21
checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.