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Overview
Interventions based on evidence – validation studies
Interventions offered to railway crew members and their employers should be based on the best available scientific knowledge in order to ensure that the intervention has been proven to be effective in reducing the negative impact of critical incidents for crew members, and railway companies.
Evaluation studies aim at assessing the effectiveness of prevention or treatment strategies to reduce the traumatic reactions in crew members after a critical incident. Unfortunately, there have not been many evaluation studies in this area, and many of the existing studies do not provide complete results or may only be relevant in certain countries or specific railway contexts. This section provides an overview of the existing research on the effectiveness of these interventions.
Classification of evidence levels for interventions in general
Evaluation of interventions can be done in different ways, each providing different types of information that may be helpful when choosing intervention strategies:
|
Levels of evaluation |
In the context of support and care after a railway critical incidents |
|
Needs analysis studies assess the nature and extent of the problem faced by specific populations or groups and describe the various causes and potential solutions to help. They are useful to describe what is needed, but do not identify which prevention and intervention strategies are most useful. |
Needs analysis have been conducted mainly in retrospective or prospective studies of the effect of railway Person-Under-Train (PUT) incidents and railway fatalities. |
|
Implementation studies describe the support or care strategies as they have been used in a specific context. They may also describe and analyse facilitators and obstacles to the implementation, the underlying theories that justify the use of the strategies, the level of success of the programme implementation, the feasibility in the context and the possible generalisation to other settings. |
Several protocols have been described and implemented. However, the level of description of these protocols, their components and conditions of implementation is often insufficient to develop an in-depth understanding of the various components of these programmes |
|
Effectiveness studies: They describe the effects of the support or care strategy on the problems it aims to solve. Effectiveness studies can have varied levels of scientific validity and can provide information about the effects of the programme ranging from subjective measures of satisfaction to scientific evidence of effects in reducing symptoms. It is generally assumed that the best scientific evidence comes from comparisons in an experiment and control group of symtoms before and after the intervention using validated measurement tools, with a random assignment to experiemental and control conditions. Studies may examine short, mid or long term effects of the intervention. |
Several interventions have been evaluated in the context of railway critical incidents, but rarely in the context of study with a control group. Most studies focus upon immediate short term effects, rather than assessing the long term impact of the interventions. |
The more an evaluation uses valid scientific methodologies and standardised assessment tools, the more its results are generally considered to be scientifically valid. However, in order to fully understand how treatments are helpful and why, research using different methodologies and gathering different types of information and suing different methodologies can be useful..
Classification of interventions to reduce traumatic reactions in railway crew members
Our review was based upon an analysis of Guidelines and Regulations, railway company policies (CIRP), formal research studies published in scientific journals, and needs analyses and surveys with employees, including our analysis of based upon our interview study with Canadian rail workers.
Two levels of intervention were identified in the existing literature. First, there are numerous protocols published by governing bodies and railway companies, include guidelines for programmes and other actions to be taken by railway companies. Second, there are therapeutic interventions with conductors and engineers to reduce their individual symptoms.
The main activities to reduce traumatic reactions in railway crew members are described below. Our analysis indicates that prevention activities implemented within companies have almost never been evaluated. Therefore, although there are strong indications from needs analysis that they should be helpful., they cannot currently be included in best practices for lack of evidence. Clinical interventions have been subjected to empirical evaluations and EMDR and CBT seem to be the most efficient at reducing trauma related symptoms. However, other potential clinical interventions have been rarely evaluated.
|
Activity |
Levels of implementation in the railway industry |
Evaluation of effect in the context of railway critical incidents |
|
Information and training |
No Requested by crew |
No |
|
On site management - Compassionate handling -Taking charge of the scene |
Not as company protocols (anecdotal) Requested by crew |
Indications that it reduces post incidents symptoms |
|
Demobilisation– being taken off the train |
Widely implemented Compulsory or optional |
Indications that it helps recovery Insufficient on its own to prevent PTSD |
|
Time off |
Widely implemented Compulsory or optional Between 24h and 72h |
Indications that it helps recovery No empirical evaluation No assessment of appropriate length of time off |
|
Return to work policy -Planned -Evaluation of fitness to work |
Anecdotic Requested by crew |
No |
|
Peer support |
In several companies |
Indications that it helps recovery |
|
Debriefing – individual or group debriefing after the incident with a clinician |
In several companies |
Indications that it helps recovery |
|
Group therapy (Rombom 2006) |
Anecdotal |
Effective in combination with individual therapy |
|
Cognitive behavioural therapy (CBT) (Rombom 2006 ) |
In several contexts |
Effective at reducing symptoms |
|
Eye Movement Desensitization and Reprocessing (EMDR) |
In several companies |
Effective at reducing symptoms |
News
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To help update the review
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Contributing to the review
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Railway fatalities
Characteristics and Incidence of Railway Suicides
Media impact on railway and metro suicides
There is evidence that media reports on railway and metro suicides can influence the incidence of these events. The classic example is the dramatic increase in Vienna of the number of subway suicide deaths from 1984 to 1987 when local newspapers competed to print sensational and detailed descriptions whenever subway suicides occurred. The increase during the same period of the overall suicide rate in Vienna was explained by the increase in the subway suicide increase. After the Austrian Suicide Prevention Association convinced newspapers to completely stop publicizing subway suicides there was a 75 % decrease in suicides by this method, no increase in suicides by other methods and this lower rate was maintained for five years (Sonneck, Etzerdorfer, & Nagel-Kuess, 1994), and had remained low 10 years later (Etzerdorfer & Sonneck, 1998).
In Germany, a 6-episode weekly serial that was aired in 1981 and again in 1982 provided dramatic data on the possible effects of a fictional suicide on rates of suicide using a specific method. This fictional television series concerned a 19 year-old male student who committed suicide by being hit by a train and the suicide was shown at the beginning of each episode. During the 70 days after the first episode, railway suicides among 15-19 year old males increased by 175% and there were also increases for males up to age 40 and females 15 to 30 (Menahem, 1988), (Schmidtke & Häfner, 1988). Significant increases were also observed when the series was re-broadcast the following year. Kunrath, Baumert and Ladwig (2010) reported a significant average daily increase of 44% in railway suicides following widespread television and newspaper coverage of the accidental railway deaths of 3 members of a railway investigation team in December 2006 in Bregenz, Austria. Because of the potential for media reports leading to increased metro and railway suicides, newspapers in many cities have stopped reporting on railway and metro suicides.
Mishara and Bardon (2012) did not find any noticeable impact of the media on Canadian railway suicides. Indeed, guidelines on suicide reports has been provided to the Canadian press and it appears that in the case of metro and railway suicides, these guidelines are generally respected by the industry. Therefore, railway suicides are rarely reported in Canada, and almost never in a sensationalistic manner.
Prevention Strategies
A number of possible measures to prevent people from committing suicide on railways have been proposed. Most prevention measures have focussed upon preventing potential victims from gaining access to the tracks, identifying and intervening with potential victims just before they attempt suicide and technical interventions to minimize harm to suicide attempters. Very little has been done to decrease the risk of a railway or metro suicide by trying to reduce the suicide potential in vulnerable populations or by influencing their choice of a railway or metro system for their suicide method.
An example of a typical approach is the “Project for stopping trespassing on railroad” of the Swedish Transportation Administration (2011). The project is based upon keeping potential suicide attempters away from tracks and detecting them in time to for trains to stop. The Swedish plan includes testing:
- Fences between tracks (on double or more tracks)
- Fences to prevent access to tracks
- Lights at the end of platforms
- Improved gates at the end of platforms
- Marking and signs
- Eliminating “hideaway” places where people can hide close to tracks
- Camera surveillance with automatic alarm systems
- Motion detectors
Similarly, in October 2009, a report commissioned by the Belgian Government proposed a series of initiatives to prevent suicides on the rails, again focusing upon limiting access, (Infrabel, 2009), which they hoped to implement in 2012-2015. Their approach was to add more fences to limit access, eliminate many grade crossings, improve visibility for train drivers by cutting vegetation along rails and installations of markers at all unprotected crossings with information about help and a button that connects a person in distress with the railway security services. They also are working with several local partners to advertise suicide prevention services.
The following sections review the scientific evidence for the various prevention strategies that have been tested to date:
Railway fatalities
Research articles
A comprehensive review of existing work on the impact of socio-environmental determinants of railway suicides
Article Title: The socio-environmental determinants of railway suicide: a systematic review
Authors: Too, L., Milner, A., Bugeja, L., & McClure, R.
Publication date: 2014
Publication: BMC Public Health, 14(1), 20.
This article is interesting because it summarises effectively what is currently known about socio-environmental characteristics of railway suicides that have been analysed in descriptive studies. It emphasises the need to further explore the causal relationship between environmental characteristics and suicides, since results from existing studies are not consistent. This review and the lack of consistency between studies on different railway networks raise the question of potential cultural variations that have yet to be analysed.
Abstract from the authors:
Background: Railway suicide has significant adverse impacts for the victims, their family and friends, witnesses to the incident, general public and train network. There is no previous review on the socio-environmental factors of railway suicide. The research question asked in this review is: ‘What socio-environmental risk and protective predictors are significantly associated with railway suicide?’
Methods: The authors searched Medline, PsycINFO, Web of Science and Scopus for English-language studies that assess the associations between socio-environmental (i.e., geographical, physical, economic, and social) factors and railway suicide from their inception to June 2013. It was reported based on the PRISMA Statement.
Results: Eleven studies met the inclusion criteria. They were categorised into railway environments (availability of railways and trains, accessibility to railways and familiarity with trains), population characteristics, and impact of media reporting. Findings from ecological studies using population level railway suicide data suggested weak and inconsistent evidence for the first two categories. The evidence on the impact of media reporting was moderately strong, with irresponsible media reporting being associated with an increased risk of railway suicide.
Conclusions: There is a need for further research activity to strengthen evidence about socio-environmental risk factors of railway suicide. The focus of such research should be on the factors that determine individuals’ decisions of using the railway as a means of suicide, taking into account a range of geographical, physical, social, and economic factors.
A series of articles on the implementation of blue light to reduce the risk of suicides from railway and metro platforms
Article references:
Matsubayashi, T., Sawada, Y., & Ueda, M. (2012). Does the installation of blue lights on train platforms prevent suicide? A before-and-after observational study from Japan. Journal of Affective Disorders. doi: 10.1016/j.jad.2012.08.018
Ichikawa, M., Inada, H., & Kumeji, M. (2014). Reconsidering the effects of blue-light installation for prevention of railway suicides. Journal of Affective Disorders, 152–154(0), 183-185. doi: http://dx.doi.org/10.1016/j.jad.2013.09.006
This series of articles is interesting because it shows how a promising and very innovative strategy to reduce railway suicides from platforms did not live up to expectations. It also shows us that innovation is a risky but potentially rewarding affair.
Abstracts from the authors:
Matsubayashi et al., 2012
Background: Railway and metro suicides constitute a major problem in many parts of the world. Japan has experienced an increase in the number of suicides by persons diving in front of an oncoming train in the last several years. Some major railway operators in Japan have begun installing blue light-emitting-diode (LED) lamps on railway platforms and at railway crossings as a method of deterring suicides, which is less costly than installing platform screen doors. However, the effectiveness of the blue lights in this regard has not yet been proven.
Methods: This study evaluates the effect of blue lights on the number of suicides at 71 train stations by using panel data between 2000 and 2010 from a railway company in a metropolitan area of Japan. We use a regression model and compare the number of suicides before and after and with and without the intervention by the blue light. We used the number of suicides at 11 stations with the intervention as the treatment group and at the other 60 stations without the intervention as the control group.
Results: Our regression analysis shows that the introduction of blue lights resulted in a 84% decrease in the number of suicides (CI: 14–97%).
Limitations: The analysis relies on data from a single railroad company and it does not examine the underlying suicide-mitigation mechanism of blue lights.
Conclusions: As blue lights are easier and less expensive to install than platform screen doors, they can be a cost-effective method for suicide prevention.
Ichikawa et al., 2014
Background: A recent preliminary communication suggested that the calming effect of blue lights installed at the ends of railway platforms in Japan reduced suicides by 84%. This estimate is potentially misleading from an epidemiological point of view and is reconsidered in the present study.
Methods: Governmental data listing all railway suicide attempts in Japan from April 2002 to March 2012 were used to investigate the proportion of suicide attempts within station premises, where blue lights are potentially installed, and at night, when they would be lit. For those suicide attempts within station premises, we also estimated the proportion that occurred at the ends of the platforms at night.
Results: Of 5841 total reported suicide attempts, 43% occurred within the station premises, 43% occurred at night (from 18:00 to 05:59), and 14% occurred both within the station premises and at night. Of the 2535 attempts within station premises, 32% occurred at night and 28% at most were at the end of a platform at night.
Limitations: The exact proportion of night time suicide attempts at the ends of railway platforms was not calculable. Nonetheless, the proportion of suicide attempts that is potentially preventable by blue lights should be less than our conservative estimate.
Conclusions: The installation of blue lights on platforms, even were they to have some effect in preventing railway suicides at night, would have a much smaller impact than previously estimated.
A report on the characteristics of railway suicides in the USA
Document title: Berman, A., Sundararaman, R., Price, A., Marshall, K., Martino, M., Doucette, A., . . . Gabree, S. (2013). Defining Characteristics of Intentional Fatalities on Railway Rights-of-Way in the United States, 2007–2010 (pp. 31). Washington, DC 20590: US Department of Transportation.
Authors: Berman, A., Sundararaman, R., Price, A., Marshall, K., Martino, M., Doucette, A., . . . Gabree, S.
Publication date: 2013
This article is interesting because it describes the characteristics of railway suicides in the USA for the first time. It also applies the method of psychological autopsies. Although it is complex, time- and resource-consuming, psychological autopsies are often used in studies of suicides in general. It offers an interesting insight in the psychological, social and environmental processes that may have led to the person taking its own life. However, too little has been found on why a person chooses the train, since there is no possibility to speak directly to the victim.
Abstract from the authors:
This report presents aggregate findings from 55 psychological autopsies of decedents who were identified as an intentional death (i.e., a suicide) on railroad rights-of-way between October 1, 2007, and September 30, 2010. The goal of this study was to assess whether there are unique characteristics of individuals involved in suicides on railroad rights-of-way compared with individuals who complete suicide by other means. The aggregate findings show that this sample of suicides on railroad rights-of-way share much in common with samples of suicides by other means. Only a few notable unique characteristics were found in the former population: the cases are more significantly marked by both severe mental disorder and substance abuse, the individuals tend to live near railroad tracks, and they are possibly less likely to have access to firearms. Additionally, the majority of these completed suicides occurred in urban or suburban areas as opposed to rural areas. The information collected for this effort may provide valuable information for the development of countermeasures or other intervention plans to mitigate this issue on railroad rights-of-way.
Introduction
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Overview
We have included in this overview studies of suicides in railway systems that provide long distance transportation and deliver freight between cities, suburban and rural areas and studies of urban rail transportation systems, generally referred to as a “metro,” “subway” or “underground.” There are usually physical differences between railway and metro systems, including the fact that in railways, access to the tracks between stations is generally less controlled by physical barriers and railway passenger trains may enter stations at a slower speed than metro trains. Metro systems are generally more controlled environments, they may be hidden underground and access is usually limited to passengers in stations. In railway systems, vast stretches of track are usually unprotected and crossings may have physical barriers and signals that are activated when a train is approaching. However, physical barriers at crossings do not effectively limit access to the open rails. Thus, persons who die by suicide in train-person collisions on railway systems may be on foot or in a vehicle, and need not be potential rail passengers. These and other characteristics, such as the fact that metros serve high population density urban areas and railways may cross rural and isolated areas as well, might lead one to believe that the phenomenon of suicide in metros and railways are different. However, since there do not appear to be substantial differences in research results on railway and metro suicides, we will present data for both types of rail systems in this review.
We begin by discussing the extent of the problem and review studies of factors related to railway and metro suicides. We then present a critical review of potential suicide prevention activities in railways and conclude with a discussion of potential prevention activities that may be pilot tested of in Canada.
Scientific literature review
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What are the needs for further research and knowledge development?
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What can I do as a :
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