41 research outputs found

    Management of Road Infrastructure Safety

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    Road Infrastructure Safety Management (RISM) refers to a set of procedures that support a road authority in decision making related to the improvement of safety on a road network. Some of these procedures can be applied to existing infrastructure, thus enabling a reactive approach; and other procedures are used in early stages of a project's life-cycle allowing a proactive approach. The objective of this paper is to provide an overview of the most well-known procedures and present a series of recommendations for successful road infrastructure safety management. The work described in the paper was completed by the IRTAD sub-working group on Road Infrastructure Safety Management and presented in detail in the respective Report. The methodology followed on this purpose included the description of the most consolidated RISM procedures, the analysis of the use of RISM procedures worldwide and the identification of possible weaknesses and barriers to their implementation, the provision of good practice examples and the contribution to the scientific assessment of procedures. Specifically, the following RISM procedures were considered: Road Safety Impact Assessment (RIA), Efficiency Assessment Tools (EAT), Road Safety Audit (RSA), Network Operation (NO), Road Infrastructure Safety Performance Indicators (SPI), Network Safety Ranking (NSR), Road Assessment Programs (RAP), Road Safety Inspection (RSI), High Risk Sites (HRS) and In-depth Investigation. Each procedure was described along with tools and data needed for its implementation as well as relevant common practices worldwide. A synthesis summarizing the key information for each procedure was also drafted. Based on a survey on 23 IRTAD member countries from worldwide, the lack of resources or tools is the most commonly stated reason for not applying a RISM procedure. This has been frequently found mainly in European countries. Another common reason is the absence of recommendations/guidelines, especially for SPI, RAP, RSI and RSA. This highlights the importance of the presence of some legislation regulating the application of the procedures. Lack of data was found important mainly for SPI, HRS and EAT. Good practices of road infrastructure safety management have been explored in order to find solutions to the issues highlighted by the survey and provide examples about how these issues have been overcome in some countries. Specifically, issues related to data, legal framework, funding, knowledge, tools and dealing with more RISM procedures were addressed. Finally, nine key messages and six recommendations for better Road Infrastructure Safety Management were developed based on the conclusions made

    Polycyclic heteroaromatic hydrocarbons containing a benzoisoindole core

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    By the combination of 9a-azaphenalene and a perpendicularly oriented acene, we have synthesized three derivatives of a series of novel, fully-conjugated nitrogen-containing polycyclic aromatic hydrocarbons (PAHs), namely [7,8]naphtho[2′,3′:1,2]indolizino[6,5,4,3-def]phenanthridine, with an acetylene triisopropylsilyl (TIPS), phenyl or benzothiophenyl substituent. Their optoelectronic properties were studied via UV-Vis-NIR absorption, fluorescence spectroscopy and cyclic voltammetry. In addition, in situ spectroelectrochemistry was performed to investigate the optical and magnetic properties of the mono-radical cation and anion by quasi-reversible oxidation and reduction of 11-(tert-butyl)-5,17-bis((triisopropylsilyl)ethynyl)[7,8]naphtho[2′,3′:1,2]indolizino[6,5,4,3-def]phenanthridine (1a). Theoretical modelling confirmed the predominately closed-shell electronic ground state with a weak diradical character depending on the geometry

    How safe are cyclists on European roads?

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    Cyclists, while relatively small in proportion with respect to motorized vehicles, have a high level of vulnerability, creating a significant need to better understand the characteristics specific to this user group. A good insight into the problem provides an opportunity to improve the road safety of this cheap, convenient and environmentally friendly mode of transport. In 2013, more than 2.000 cyclists were killed in road traffic accidents in 27 EU countries, constituting almost 8% of all road accident fatalities for that year. Although a considerable decrease by 32% in the total number of bicycle fatalities in noted within the decade 2004 – 2013, it is still smaller than the respective reduction of the overall road fatalities by 45%.The objective of this research is the analysis of basic road safety parameters related to cyclists in European countries, by the use of the EU CARE database with disaggregate data on road accidents, as well as of other international data sources (OECD/IRTAD, Eurostat, etc.). Time-series data on road accidents involving cyclists from 27 EU countries over a period of 10 years (2004-2013) are correlated with basic safety parameters, such as road type, season of the year, age and gender. Data from the EU Injury Database are used to identify injury patterns and improve the assessment of injury severity, and additional insight into accident causation for cyclists is offered through the use of in-depth accident data from the EC SafetyNet project Accident Causation System. The results of the analysis allow for an overall assessment of the cyclists safety level in Europe in comparison to other modes of transport, thus providing useful support to decision makers working for the improvement of safety in the European road network

    Characteristics and causes of heavy goods vehicles and buses accidents in Europe

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    While Heavy Goods Vehicles (HGV) and buses account for just a small proportion of the vehicle fleet or the total vehicle kms travelled in the EU, they are over-involved in severe road accidents, creating a significant need to better understand the characteristics specific to this vehicle group. In 2013, more than 4.500 persons were killed in road traffic accidents involving HGVs or bus/coach in EU, constituting almost 18% of all road accident fatalities for that year. The objective of this research is the analysis of basic road safety parameters related to HGV and buses/coaches in European countries, by the use of the EU CARE database with disaggregate data on road accidents, as well as of other international data sources. Time-series data on road accidents involving HGVs and buses/coaches for 27 EU countries over a period of 10 years are correlated with basic safety parameters, such as area type, season of the year, casualty age and gender, as well as the day of the week. Additional insight into accident causation is offered through analysis of a set of in-depth accident data from the EC SafetyNet project Accident Causation System. The results of the analysis allow for an overall assessment of the HGV and buses/coaches safety level in Europe in comparison to other modes of transport, thus providing useful support to decision makers working for the improvement of safety in the European road network

    An overview of car occupant fatalities in the European countries

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    Car occupants have a high level of mortality in road accidents, since passenger cars are the prevalent mode of transport. In 2013, car occupant fatalities accounted for 45% of all road accident fatalities in the EU. The objective of this research is the analysis of basic road safety parameters related to car occupants in the European countries over a period of 10 years (2004-2013), through the exploitation of the EU CARE database with disaggregate data on road accidents. Data from the EU Injury Database for the period 2005 - 2008 are used to identify injury patterns, and additional insight into accident causation for car occupants is offered through the use of in-depth accident data from the EC SafetyNet project Accident Causation System (SNACS). The results of the analysis allow for a better understanding of the car occupants’ safety situation in Europe, thus providing useful support to decision makers working for the improvement of road safety level in Europe

    The future decision support system, deliverable 8.5 of the H2020 project SafetyCube

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    The European Road Safety Decision Support System (DSS) is a comprehensive “one stop shop” designed to inform evidence based policy by providing state of the art scientific knowledge on road safety. A short promotion video is available here: www.youtube.com/watch?v=Y-mVUde3knU. The DSS (www.roadsafety-dss.eu) has a user friendly web-based interface allowing users access to compressive information about a large range of road safety risk (problems) and measures (solutions), and links between the two. In addition, users are presented with information about serious road injuries, accident scenario fact sheets and an Economic Efficiency Evaluation (E3) tool. The E3 tool allows users to evaluate the cost effectiveness of road safety measures as well as providing a selection of worked examples. The European Road Safety DSS was developed by the European Commission supported Horizon 2020 project Safety CaUsation, Benefits and Efficiency (SafetyCube). The object of SafetyCube was to develop an innovative road safety Decision Support System (DSS) that will enable policy-makers and stakeholders to select and implement the most appropriate strategies, measures and cost-effective approaches to reduce casualties of all road user types and all severities. Detailed information about the development and DSS status at the end of the SafetyCube project are available in Yannis & Papadimitriou (2018). An overview of the DSS scientific content and a summary of the methodology used to develop the DSS can be found in the SafetyCube Final Project Report (Thomas & Talbot, 2018). The present Deliverable (8.5) gives a brief overview of the current state of the art DSS, describes the future enhanced version of the DSS and provides information for potential funder(s). Opportunity is available for new funders to support the European road safety DSS as it is developed and enhanced for future users. Through supporting the DSS, the future funder(s) will be contributing the Global UN Sustainable Development Goals on road safety by taking a leading position to actively promote effective solutions to road safety’s most pressing challenges. Aspirations for the future DSS will make the scientific content more accessible through translation of content in to local languages and filtering information into the manner most appropriate for low and middle income countries. The content will be expanded to include more topics and more detail about existing topics. Expansion of knowledge will include knowledge about implementing measures and a focus on the interdependences of road safety measures considering the impacts of implementing measures in combination. In addition to the future visions for content there are also aspirations for the future web based interface. A key enhancement will be to give users the ability to customise the display and select the information they would like to see for each individual coded study. The best case future for DSS operation is that of extended growth supported by considerable external funding. The exact structure, legal entity and governance of the future enhanced DSS will be decided in collaboration between the SafetyCube consortia and the future funder(s). In this cooperative way funding partners will have the chance to influence the development process in the manner most appropriate to meet their stakeholder needs. It is envisaged that the future DSS will be financed by several Organisations, therefore, the governance, time schedule and strategy for extended growth will be mutually decided. Within the SafetyCube project activities have been undertaken to advertise the DSS and provide information for potential funders. The European road safety DSS is the first integrated road safety support system developed in Europe. It aims to be the “go to tool”for road safety knowledge. The next funder(s) of the DSS have the exciting opportunity to take the DSS to the next level in facilitating the future of evidence based road safety policy making, ensuring safe roads for all
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