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Hsu, W.K.; Chen, J.; Huynh, N.T.; Lin, Y. Navigation Safety for Ferries. Encyclopedia. Available online: https://encyclopedia.pub/entry/42207 (accessed on 28 December 2024).
Hsu WK, Chen J, Huynh NT, Lin Y. Navigation Safety for Ferries. Encyclopedia. Available at: https://encyclopedia.pub/entry/42207. Accessed December 28, 2024.
Hsu, Wen-Kai K., Jun-Wen Chen, Nguyen Tan Huynh, Yan-You Lin. "Navigation Safety for Ferries" Encyclopedia, https://encyclopedia.pub/entry/42207 (accessed December 28, 2024).
Hsu, W.K., Chen, J., Huynh, N.T., & Lin, Y. (2023, March 15). Navigation Safety for Ferries. In Encyclopedia. https://encyclopedia.pub/entry/42207
Hsu, Wen-Kai K., et al. "Navigation Safety for Ferries." Encyclopedia. Web. 15 March, 2023.
Navigation Safety for Ferries
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This entry is adapted from the peer-reviewed paper 10.3390/jmse10050700

Throughout the history of human development, sea transport has been widely exploited for the movement of passengers and cargo in many nations, especially in archipelagic countries. The sea passenger transport has gradually diminished over the past two decades, in part because of rapid developments in aviation and road transport, passengers continue to use cruises or ferries as the main means of transport for different purposes.

ferry navigation safety

1. Introduction

Generally, cruise ships operate long-distance international routes, and their main functions are to provide passengers with leisure travel and sightseeing needs. Therefore, in design, the size of a cruise ship is usually larger and the requirements for entertainment facilities and comfort are generally more important than speed, whereas a ferry, also known as a traffic ship, is a regular multifunction ship for passengers and cargo. Its main function is to carry passengers, goods, and vehicles (including land vehicles and trains) between islands across short distances. Furthermore, the ferry is also known as a mass transportation system for islands and cities located by the water. For transportation between two points, the cost of a ferry is significantly lower than that of building bridges or tunnels. Nonetheless, one of the disadvantages of ferry transport is that it could be easily suspended due to weather conditions.
In practice, the primary requirement of passenger transport by ferry is travel speed [1]. Thus, in ship design, a ferry’s tonnage is relatively small compared to that of a cruise vessel. In addition, the requirement for speed is much more crucial than comfort and entertainment facilities. Furthermore, in terms of safety facilities for maritime navigation, the requirements of cruise ships are much greater than those of ferries. Generally, cruise ships not only have diversified professionals and a variety of life-saving equipment but also have a certain number of specifications for the prevention of maritime accidents and for personnel training [2]. By contrast, for ferries, except for basic rescue and escape equipment, the safety management activities are relatively inadequate compared with cruise ships. Furthermore, due to the features of short-distance traffic, in practice, operators may easily neglect the SOPs (standard operational procedures) for safety navigation. As a result, although governments have enforced stricter regulations, many fatal ferry accidents still occur relatively frequently.
Globally, calamitous accidents with many casualties and injuries pertaining to ferry transport have been reported. For instance, at least 60 people drowned after an overloaded ferry capsized in the river in the DR Congo in February 2021 [3]. Another deplorable incident happened in Bangladesh in April 2021 when an overcrowded ferry collided head-on with a cargo ship, leading to a total of 34 deaths [4]. In addition, the number of reported ferry accidents raises concerns about navigation safety management for ferry transportation. For example, South Korea documented at least 110 ferry accidents between 2015 and 2019, although its government has implemented coastal ferry safety innovative strategies since September 2014 to avoid maritime disasters, such as the sinking of the MV Sewol, resulting in a death toll of 304 passengers and crew members in April 2014 [5]. For Taiwanese maritime navigation, a total of 583 ship accidents occurred between 2014 and 2019 for some key reasons: collision (33.22%), striking (15.18%), machinery failure (10.16%), grounding (8.56%), and fire/explosion (1.37%) [6].
Additionally, the proportion of navigation accidents is currently on the rise in several countries. More specifically, about 37.5% of accidents involving passenger vessels, including ferries, were recorded in Bangladesh between 2008 and 2019 [7]. Furthermore, the potential risks concerning the safety of ferries are expected to increase thanks to the expansion of sea traffic, the expansion of the offshore fishing industry, and wind farms. It is argued that a single accident by ferry transportation can cause mass mortalities and property loss since the ferry typically carries a lot of people and freight on board [5]. In the relevant research, most studies only focused on the identification of the safety factors of ship navigation, e.g., [8][9]. A few articles further evaluated the risk levels of those factors. In practice, the different risk levels of safety factors should have different corresponding strategies so as to improve the efficiency of safety management for ship navigation [10].

2. An Overview of Ferry Transportation in Taiwan

Recent years have seen an increase in cross-Taiwan Strait communications. Travel between Mainland China and Taiwan has increased at an 8 percent average annual growth rate between 2010 and 2018 [11]. As shown in Figure 1, currently there are four major ferry routes: (1) Tapie-Pingtan managed by the Lina Wheel (LW), (2) Keelung-Matsus/Dongyin served by Taiwan Horse Star (THS), (3) Kaohsiung-Penghu operated by Tai-hua Wheel (THW), and (4) Taichung-Pingtan operated by the Strait (ST). The specifications of each ferry are also exhibited in Table 1. In addition, there are a few minor ferry routes between Hualien and Suao, including Taitung port, Orchid Island, and Green Island.
Jmse 10 00700 g001
Figure 1. Ferry routes between Taiwan and archipelagic islands.
Table 1. The ship profiles of main ferries in Taiwan.
Ferry Jmse 10 00700 i001 Jmse 10 00700 i002 Jmse 10 00700 i003 Jmse 10 00700 i004
Ship Profile  
Ship’s name Tai-Hua Wheel (THW) Taiwan Horse Star (THS) Lina Wheel
(LW)		 Strait
(ST)
Build year 1989 2015 2007 2006
Weight (tons) 8134 4958 10,712 6556
Length (m) 120.00 104.60 112.60 97.22
Width (m) 19.30 16.00 30.50 26.60
Speed (knots) 22 21 40 38
Passengers 1150 580 800 750
Crew 21 19 22 22
Operating route Kaohsiung-Penghu Keelung-Matsu Taipei-Pingtan Taichung-Pingtan
Operated by Taiwan Navigation Company Taima Star company Lina Travel agency Strait Express

3. The Risk Factors of Navigation Safety

According to the European Union’s 2008 Safety Research Plan: Safer EURORO Report [12], the RFs for ferry safety were classified into four dimensions, including humanware, hardware, software, and environment [12]. Based on this framework, numerous navigation-related studies have been conducted. Organizational factors, environmental conditions, human mistakes in safety management, and other possible RFs for marine transportation have been identified in recent research [13][14][15]. People are often injured or killed, and the environment is often polluted as a result of these RFs. As a result, maritime operators and academics have paid particular attention to how to deal with these RFs in order to ensure maritime navigation safety [16].
Accordingly, researchers depend on previous research and IMO criteria for maritime navigation safety in this work. Based on Safer EURORO’s framework [12], this research focuses on the following four key safety evaluation factors for ferry transport: crew factor, ship hardware, ship management, and company management.

3.1. Crew Factor (CF)

Relevant studies have indicated that human error is the primary cause of marine accidents, including personal knowledge, skills, talents, attitude, working drive, and awareness [17]. For example, human error was shown to be the root cause of more than 80% of shipping-related incidents [18]. Human error was to blame for 79% of European maritime disasters between 1981 and 1992 [19]. As a result, human error is responsible for over 79 percent of towing vessel groundings [20], almost 26 percent of fire and explosion incidents [21], and approximately 30 percent of onboard fires/explosions. There are internal and external components to the errors in terms of the crew members that could be differentiated. Internal human error can be attributable to work stress, knowledge, self-discipline, or crews’ perceived fatalism [22][23]. Conversely, external human error could be caused by the working environment (i.e., unclean workplace, noise, or pilotage-related deficiencies [16] or a harsh natural environment [14], which makes crew members lack foresight and concentration in their duties. Likewise, other onboard mistakes by crew members that could affect maritime operational safety include misjudgment and misunderstanding [19], inadequate technical knowledge [14], a lack of knowledge about the ship system [1], fatigue, poor rescue communication [14][19], or a lack of awareness of survival procedures [8]. It is argued that a crew member’s ability to respond professionally to shipping accidents is able to restrict a mass loss of property and life [9]. To sum up, passenger ferry safety assessments must take into account the importance of the crew factor.

3.2. Ship Hardware (SH)

One of the most important variables in marine navigation safety is the condition of a ship’s mechanical equipment. Related studies indicated that ship accidents caused by mechanical failure range from 10% to 51% of total accidents [6]. In addition, ship structure is shown to be a critical factor in marine transportation’s overall safety. The general engineering and technical system, strength and stability, power and propulsion, and maneuverability are the four pillars of shipbuilding excellence [9]. Furthermore, studies have shown the importance of onboard equipment, such as excellent radio communication, nautical lights and searchlights, and the radar system [14], in ensuring ship navigational safety. Vessel operators should pay more attention to some ship equipment failures to reduce the potential risks, such as broken mooring lines, rusted bolts, damaged gas detectors, and crippled exhaust fans [17]. Additionally, other onboard rescue equipment, such as lifeboats, lifejackets, fire extinguishers, and seat belts [6][8][13][16], and communications systems, such as the Automatic Identification System (AIS), Very High Frequency (VHF) radios, and even the Ship Security Alert System (SSAS) for security, have also been demonstrated to be an indispensable part of marine navigational safety practices.

3.3. Ship Management (SM)

Ship management is an essential part of maintaining and operating boats in a safe and efficient manner, as well as for minimizing the risk of accidents and mishaps. Since 1998, the maritime sector has used the International Safety Management (ISM) code to standardize ship management. This code mandates that ship operators follow standard operating procedures (SOPs) in order to optimize operational efficiency and minimize risk. In addition to crews’ abilities and expertise, the process of managing crew members onboard is widely considered to be an important aspect of increasing ship safety operations, such as crew working hours, workloads, and job allocations [24].
Furthermore, organizing regular exercise and periodic training programs are manifested to be a crucial part of marine risk-prevention strategies for major shipping lines such as COSCO and Yang Ming. On top of that, working on vessels requires a “team effort”; in other words, a “one-man-show” cannot operate the whole vessel effectively and efficiently. It is evident that good interpersonal relationships among seafarers, which enable them to coordinate and cooperate in the workplace, are important for performing operations smoothly and safely on board. Comprehensive maritime accident analyses also found that the lack of team training and poor communication between crews and third parties are prone to major accidents [16].

3.4. Company Management (CM)

The process of company management is an important aspect that is crucial to optimizing ferry navigation and improving ferry operators’ business performances. For the role of company management in ferry navigation safety, the responsibilities delegated to an executive cover two categories: technical management and crew management. Arguably, technical management services, such as arranging and supervising dry dockings, repairs, alterations, and maintenance, ensure that the vessel’s machinery maintains a particular standard of operation and safety. In recent years, crew management has received more attention as an imperative facet of estimating the risks of maritime transportation. In practice, crew management for shipping companies mainly includes the development of safety procedures [1], crew manpower planning [24], and safety training systems [9]. On top of this, regulatory actions [17]; certification counterfeiting; poor inspection [16], incentive and punishment mechanisms [24]; and crew recruitment processes [1] are also a few of the numerous factors that affect ship navigation safety.

4. Risk Matrix

To improve maritime safety, the International Maritime Organization (IMO) proposed the Formal Safety Assessment (FSA) procedures to assess safety risks [25]. The process, shown in Figure 2, includes five steps: (1) hazard identification, (2) risk analysis, (3) risk control options, (4) cost-benefit assessment, and (5) recommendations on decisions [26]. The hazard is defined as any accident that endangers the navigation safety of a ferry. Since the FSA procedure includes complete and concrete implementation steps, it was widely applied in many workplaces of safety management, including maritime transportations [23][24][27], container terminals [26], airfreight transportations [10], etc.
Jmse 10 00700 g002
Figure 2. The Formal Safety Assessment (FSA) procedures.
In the FSA procedures, the hazard identification in Step 1 is to define the risk factors (RFs), and a risk matrix is usually employed to analyze the RFs in Step 2 (i.e., Risk Analysis). Traditionally, the risk matrix is constructed based on the consequence and likelihood of the RF (Duijm, 2015). The consequence refers to the extent of loss to an organization when a particular RF is incurred and can be generally divided into 1~4 (or 1~5) levels, such as very serious, major, moderate, minor, etc. The likelihood refers to the number of occurrences of a specific RF within a certain period. Again, it is divided into 1~4 (or 1~5) levels, such as: often occurs, common, less frequently occurs, and rarely occurs.
In the traditional risk matrix, based on the levels of both consequence and likelihood, a two-dimensional panel with a risk value is used to rank the RFs’ levels. The panel is divided into several colored areas to characterize the levels. Moreover, a risk value is yielded by the product of the two levels. For example, Figure 3 shows a 4 × 4 risk matrix that ranks the RFs into three levels. The RFs located in the green area with risk values between 1 and 2 are classified as L (low-risk) levels. In contrast, the RFs situated in the yellow and red regions are classified as M (medium-risk) and H (high-risk) levels, respectively. Since the levels of both consequence and likelihood are discontinuous, the risk value is discrete and, as a result, the panel becomes a discrete risk matrix.
Jmse 10 00700 g003
Figure 3. The traditional risk matrix.
In practice, the discontinuity of a risk matrix may limit its applicability with respect to accuracies due to the consistency of the measurement data, risk-matrix grading [26], etc. To improve the shortcomings of discontinuity, the concept of a continuous risk matrix was thus proposed as shown in the curve in Figure 4 [10].
Jmse 10 00700 g004
Figure 4. The continuous risk matrix.

References

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  2. Todd, D. The World Shipbuilding Industry, 1st ed.; Routledge: London, UK, 1985.
  3. BCC NEWS.Congo River: At Least 60 Drowned after Boat Capsizes. Available online: https://www.bbc.com/news/world-africa-56082260 (accessed on 5 March 2022).
  4. NORTHEST NOW. Bangladesh Ferry Capsize Toll Rises to 34. Available online: https://nenow.in/neighbour/bangladesh-ferry-capsize-toll-rises-to-34.html (accessed on 30 March 2022).
  5. Wikipedia. Sinking of MV Sewol 2022. Available online: https://en.wikipedia.org/wiki/Sinking_of_MV_Sewol (accessed on 30 March 2022).
  6. Ung, S. Navigation Risk estimation using a modified Bayesian Network modeling-a case study in Taiwan. Reliab. Eng. Syst. Saf. 2021, 213, 107777.
  7. Mia, M.J.; Uddin, M.I.; Awal, Z.I.; Abdullah, A. An era of inland water transport accidents and casualties: The case of a low-income country. J. Int. Marit. 2021, 5, 32–39.
  8. Lau, Y.Y.; Lu, C.S.; Weng, H.K. The effects of safety delivery and safety awareness on passenger behaviour in the ferry context. Marit. Policy Manag. 2021, 48, 46–60.
  9. Lu, C.S.; Tseng, P.-H. Identifying crucial safety assessment criteria for passenger ferry services. Saf. Sci. 2012, 50, 1462–1471.
  10. Hsu, W.K.; Huang, S.H.S.; Tseng, W.J. Evaluating the risk of operational safety for dangerous goods in airfreights–A revised risk matrix based on fuzzy AHP. Transp. Res. D. Transp. Environ. 2016, 48, 235–247.
  11. National Development Council. Taiwan Statistical Data Book; damit Erscheinen Eingestellt: Taipei, Taiwan, 2019.
  12. Safer EURORO Report, Design for Safety: An Integrated approach to Safe European RoRo Ferry Design 2008. Available online: http://research.dnv.com/skj/safereuroro/safer_euroro_1_final.pdf (accessed on 30 March 2022).
  13. Hsu, W.K. Ports’ service attributes for ship navigation safety. Saf. Sci. 2012, 50, 244–252.
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Subjects: Marine & Freshwater Biology
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Wen-Kai K. Hsu
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