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- Liljegren, Eva
(författare)
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Trafikolyckor vid vägarbeten 2003-2021
- 2024
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Ingår i: Sammanställning av referat från Transportforum 2024. - Linköping : Statens väg- och transportforskningsinstitut. ; , s. 268-269
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Varje år inträffar minst 300 trafikolyckor med personskador i anslutning till vägarbeten. För att kunna öka säkerheten vid vägarbeten, för såväl vägarbetare som passerande trafikanter, är det viktigt att känna till vilken typ av trafikolyckor som inträffar, varför de sker och hur de kan förhindras. Metoden består främst av att sammanställa, bearbeta och analysera data från Strada (Swedish Traffic Accident Data Acquisition). Även data från Trafikverkets djupstudier av dödsolyckor har använts. I presentationen kommer även resultat från en pågående fördjupad analys av energiupptagande skydd, TMA (Truck Mounted Attenuator), att redovisas. Metoden i den analys består främst i att sammanställa och analysera data från TMA-olyckor och incidenter. Datat kommer från Strada, massmedia, entreprenörer, incidentrapporteringssystemet Synergi och det branschgemensamma systemet BIA. Totalt inträffade 5 667 trafikolyckor med personskador i eller i anslutning till vägarbeten under åren 2003-2021. 46 % av olyckorna inträffade på statligt vägnät, 48 % på kommunalt vägnät och resterande 6 % på övrigt vägnät. Nästan 74 % av det totala antalet olyckorna var lindriga olyckor, 22 % var måttliga, 3 % var allvarliga olyckor och 1,3 % dödsolyckor. Totalt inträffade 74 dödsolyckor. Passerande trafikanter skadas i drygt 94% av olyckorna och vägarbetarna i 6% av olyckorna. Den vanligaste olyckstypen är en upphinnandeolycka vilken kan bero på att trafikanten inte har uppmärksammat vägarbetet i tid eller inte förstått hur de ska agera när de passerar vägarbetet. Vägarbetare skadas främst i samband med vinterväghållning, eller när de arbetar utanför sitt vägarbetsfordon, t.ex. som vakt som dirigerar trafiken.Vid vägarbeten används olika typer av energiupptagande skydd som TMA (Truck Mounted Attenuator), däcksbuffert och betongbarriärer. Påkörningar på dessa skydd har skett i minst 236 olyckor som resulterat i personskador under åren 2003-2021. Preliminära resultat från en pågående analys visar dock att det inträffade så många som drygt 80 olyckor/incidenter år 2023 där TMA blivit påkört. Dessa rapporteras sällan som trafikolyckor i Strada eller är svåra att identifiera i det statistiska underlaget. Resultaten från TMA-analysen beräknas klara i oktober 2023.
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| 3. |
- Rydstedt Nyman, Monika, 1961-
(författare)
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Organizational Lessons Learned : Natural Hazards Affecting Critical Infrastructure
- 2018
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Konstnärligt arbete (övrigt vetenskapligt/konstnärligt)abstract
- This thesis focuses on an issue often presented as a solution – albeit a debated one – namely learning, specifically lessons learned from natural hazard events. Empirically, this thesis examines flooding and avalanches in a Swedish context, centering on systematic feedback mechanisms and learning from extreme events. Opportunities to and constraints affecting learning and knowledge sharing are discussed.The thesis comprises four papers, collectively contributing a description of aspects of learning and feedback in a case study setting of the Swedish Transport Administration (STA) [Trafikverket], and providing an understanding of the present level of knowledge and awareness of climate change related natural hazards, as well as how knowledge sharing may give incentives and understanding for change. The notion of social learning is that individuals, groups, and organizations (and ultimately society) can learn from one another in a context, i.e. fostering mutual change. The goal of learning and using feedback is to create an opportunity to address changes in a thoughtful and explicit manner. At the same time, there is an implicit idea that learning occurs automatically somehow, which is problematized on the basis of the cases in the articles.An interdisciplinary approach was adopted to obtain understanding of lessons learned related to natural hazards affecting critical infrastructure in Sweden. Interdiciplinarity refers to the use of theories from different research fields to achieve synergies in the search for explanations and useful understanding. The different objectives and aims of each paper have increased understanding of mechanisms related to aspects of feedback, learning and knowledge sharing after natural hazard impacts. Each paper also provides examples of opportunities and constraints to feedback mechanisms and learning in a collective context.
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| 4. |
- Rydstedt Nyman, Monika, 1961-, et al.
(författare)
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Systematic Knowledge Sharing in a Natural Hazard Damage Context : How Organizational Borders Limit Lessons Learned
- 2017
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Ingår i: Risk, Hazards & Crisis in Public Policy. - : Wiley. - 1944-4079. ; 8:4, s. 356-380
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this paper is to increase knowledge about systematic lessons learning in a public-private partnership. Empirically, it focuses on road maintenance in Sweden where the Swedish Transport Administration (STA) is responsible for the state-owned infrastructure and tendered contractors carry out all maintenance. The tendering process stipulates that the stakeholders should enable learning and the knowledge transfer that is, by necessity, required for preventive purposes. Semi-structured interviews with project leaders from the STA and respondents from two tendering contractors of maintenance were used to investigate attitudes to and the understanding of sharing experiences and knowledge about damage caused by weather extremes and the relevance of climate change adaptation in their field. The analysis suggests that most of the respondents' experiences stay within their own organization, which creates parallel feedback loops, rather than becomes shared knowledge that could be used as lessons learned enhancing preventive work against future damage and loss. The analysis indicates imbalance in feedback of knowledge concerning weather extremes and their effects.
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| 5. |
- Michielsen, Astrid, et al.
(författare)
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Predicting and communicating flood risk of transport infrastructure based on watershed characteristics
- 2016
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Ingår i: Journal of Environmental Management. - : Elsevier. - 0301-4797 .- 1095-8630. ; 182, s. 505-518
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Tidskriftsartikel (refereegranskat)abstract
- This research aims to identify and communicate water-related vulnerabilities in transport infrastructure, specifically flood risk of road/rail-stream intersections, based on watershed characteristics. This was done using flooding in Varmland and Vastra Gotaland, Sweden in August 2014 as case studies on which risk models are built. Three different statistical modelling approaches were considered: a partial least square regression, a binomial logistic regression, and artificial neural networks. Using the results of the different modelling approaches together in an ensemble makes it possible to cross-validate their results. To help visualize this and provide a tool for communication with stakeholders (e.g., the Swedish Transport Administration - Trafikverket), a flood 'thermometer' indicating the level of flooding risk at a given point was developed. This tool improved stakeholder interaction and helped highlight the need for better data collection in order to increase the accuracy and generalizability of modelling approaches.
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| 6. |
- Rydstedt Nyman, Monika, 1961-
(författare)
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Managing knowledge sharing of extreme weather induced impacts on land transport infrastructure : Case study of the Swedish Transport Administration
- 2016
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Extreme weather events and effects of climate change are threats to the transport sector’s functionality and safety. Risk management in this context implies a necessity to focus on the connection between near-term experiences and coping strategies on one hand, and long-term adaptation analyses on the other. How learning from past events and subsequent knowledge sharing can be adopted is a question that needs to be explored, discussed and tested. A systematic approach to lessons learned calls for measures of investigation, reporting, planning, implementation and evaluation. A qualitative case study approach was used in this thesis. In the first paper the practices of accident investigation in operation and maintenance were inventoried within the Swedish Transport Administration (STA). Three accident investigation methods were applied and tested on a cloudburst event, causing flooding in a railway tunnel in Sweden. In the second paper, semi-structured interviews, documents, and archival records were used as means for penetrating deeper into the attitudes and understanding of lessons learned concerning extreme weather events within a procured public-private partnership. The results of the two studies showed weak signals of feedback on lessons learned. Partly, these weak signals could be traced back to weak steering signals. Various obstacles impeded learning curves from lessons learned. The obstacles were of both hard and soft values, e.g. resources in time and equipment, systematic investigation methods, incentives for lessons learned, education and knowledge, values, norms and attitudes towards how and why identified problems should be solved. Successful knowledge sharing requires that close attention is paid to such obstacles and that an adaptive approach is adopted.
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| 7. |
- Liljegren, Eva, 1967-
(författare)
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Contracting out road maintenance. A study on quality, transaction costs and learning organization
- 2003
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This report studies the effect the opening up of routineroad maintenance in Sweden, traditionally carried out by theSwedish National Road Administration (SNRA). The main aim is tostudy the effect contracting out has had on work quality,transaction costs and the learning organization year 2001. Theresearch is built upon three hypotheses: Hypotheses 1: The SNRAcannot determine if the quality of the work is as contracted.Hypotheses 2: Transaction costs are less than 5% of theproduction costs. Hypotheses 3: The lack of cooperation ofSNRA's regional offices with each other and with the headoffice makes it difficult for SNRA to function as a learningorganization. The main research methods used were interviews, aquestionnaire, and participation in various meetings, such assite meetings and quality audits. Great emphasis has been puton the detailed questionnaire, which was sent to clientrepresentatives. The report includes a description of thebackground, definition and use of three theoretical concepts;quality, transaction costs and learning organization. Theresults show that client representatives at the regional levelcan determine that the SNRA receives the contracted quality,but at the central level it is not possible to determinequality fulfillment due to lack of complete and comparabledata. The study also concludes that it is not possible tocompletely separate transaction costs from the other productioncosts, mainly because man-hours spent per task is not accountedfor at the regional level. The questionnaire results show thatthe largest single transaction costs are those associated withreviewing the contracted work. This study shows that the clientrepresentatives think that the SNRA receives the contractedquality. The client representatives believe that the reviewprocess plays an important role in assuring the quality of theentrepreneurs' work. This study also shows that the client'swork is carried out differently in the different SNRA regionsstudied. This lack of administrative control by a centralauthority has lead to the main offices in the regions becoming"head offices" for the offices at the local level. The freedomallowed each regional office affords its employees theopportunity to develop new methods and organizationalstructures. At the same time substantial differences betweenthe regions and the lack of cooperation between the regionaloffices and the regional offices with the head office makes itdifficult for the SNRA to function as a learningorganization.
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