Entre los años 2015 y 2017 se aprecia el incremento de accidentes de tránsito en la red vial no urbana (carreteras), debido probablemente debido al aumento del flujo vehicular, el deficiente diseño geométrico, el deterioro y falta de mantenimiento de la vía. El tramo Variante de Pasamayo de la carretera PE-1N correspondiente a la Red Vial N° 5, no está excluida de este cambio, observándose como los accidentes de tránsito se han incrementado en esta vía. Debido a esta problemática es necesario determinar que herramientas de seguridad vial son necesarias implementar en la carretera Variante de Pasamayo para reducir la frecuencia de accidentes de tránsito. Esta investigación está enfocada en el análisis y propuestas de mejora de la Seguridad Vial en la Variante de Pasamayo aplicando la metodología de Inspección de Seguridad Vial (ISV) y el Método Predictivo del Highway Safety Manual (HSM) de acuerdo al nuevo Manual de Seguridad Vial (2017). La aplicación de la metodología de la Inspección de Seguridad Vial dio como resultado la identificación de tramos de concentración de accidentes los cuales son: Tramo I (Km 67+500 al Km 68+500) y el Tramo II (Km 68+500 al Km 69+500). Una vez identificados los tramos de concentración de accidentes, se procedió a utilizar el método predictivo del HSM para predecir la frecuencia de accidentes primero en las condiciones reales y luego analizando el tramo con las mejoras planteadas. Las propuestas de mejora para el Tramo I analizado son la ampliación de la berma a 3 metros, la implementación de bandas sonoras transversales y la implementación de barreras de contención. Mediante el análisis de efectividad de las mejoras de seguridad vial propuestas con el método predictivo del HSM se obtuvo una reducción del 56% de la frecuencia de accidentes. Se recomienda para futuras investigaciones que la información estadística de los accidentes registrados por la Policía Nacional sea más específica y detallada para poder utilizar correctamente el método predictivo del HSM. / This research is focused on the analysis and improvement proposals in the Pasamayo Variant (Lima), applying the Road Safety Inspection (ISV) methodology and the Highway Safety Manual (HSM) Predictive Method according to the new Safety Manual Road (2017). Where the application of road safety inspection includes the identification of the various areas where road safety is potentially poor due to various conditions and characteristics, according to a format that the manual itself, we provide and then statistical processes to determine the precise stretches of accident. Also the Manual of safety of the predictive method of the road (HSM), which involves the collection and processing of accidents originated and subscribed in the studied section in a period of approximately three years, the content, classification of vehicular traffic is also analyzed ( IMDA) and the lifting of geometric characteristics; with the objective of finding, in the first place: The prediction of the average frequency of expected accidents (Nesperado) with the current conditions of the site; Finally, the HSM is used to carry out a second prediction in which the road conditions have been changed with improvement proposals with the aim of reducing the percentage of expected accidents. The Road Safety Inspection Application and the Road Safety Manual, as it is called the identification of those areas where road safety has deficiencies and intervention is necessary in order to preserve the safety status of people. Finally, it should be mentioned that this research is a methodology that is not known in Peru, which should be implemented before, during and after the process of construction of a road in order to reduce the victims of traffic accidents. / Tesis

Os acidentes de trânsito são uma das principais causas de morte e invalidez no mundo inteiro, e projeções indicam que sua participação entre essas causas tende a aumentar no futuro. Estima-se que o fator humano contribua para a ocorrência de mais de 90% dos acidentes, e grande parte desta contribuição advém do comportamento. Nesta dissertação de mestrado, buscou-se identificar e caracterizar medidas de segurança de trânsito conforme sua influência em inibir o cometimento de infrações à legislação de trânsito por parte dos motoristas. Para tanto, foram conduzidas uma pesquisa qualitativa e uma pesquisa quantitativa. A pesquisa qualitativa, realizada através da técnica de Grupos Focados, foi utilizada para identificar as principais infrações de trânsito que contribuem para a ocorrência de acidentes, além de coletar subsídios para a elaboração da pesquisa quantitativa. Esta, por sua vez, consistiu na aplicação de um questionário auto-relatado a motoristas de automóvel da cidade de Porto Alegre. Como resultado, a pesquisa qualitativa indicou que as infrações que mais contribuem para os acidentes são a embriaguez, o excesso de velocidade e o avanço de sinal vermelho de semáforo. A pesquisa quantitativa permitiu concluir que as medidas de segurança de trânsito que mais influenciam os motoristas a não cometerem infrações de trânsito são aquelas relacionadas à restrição de direitos, como apreensão do veículo ou suspensão da habilitação, e à possibilidade de ser flagrado pelas autoridades. Por outro lado, as campanhas de conscientização na mídia demonstraram ser o tipo de medida com menor potencial para influenciar o comportamento dos motoristas. / Road traffic crashes are one of the main causes of death and disability worldwide, and it is believed that their share among these causes will grow in the future. The human factor contributes to over 90% of traffic crashes, and a great part of this contribution originates from human behaviour. This master’s thesis aimed to identify and characterize road safety measures according to their influence on driver behaviour, regarding the commitment of traffic offences. In order to do that, a qualitative and a quantitative survey were carried on. The qualitative survey was made with the Focus Group technique and was used to identify the traffic offences that contribute the most to road crashes, as well as to collect information to help preparing the quantitative survey. The last consisted in applying a self-reported questionnaire to automobile drivers from Porto Alegre, Brazil. As a result, the qualitative survey indicated that speeding, drunk driving and red light crossing are the traffic offences that contribute the most to road crashes. The quantitative survey allowed to conclude that the road safety measures with more influence on drivers, so they do not commit traffic offences, are those related to their rights restriction, like vehicle seizure or driver’s licence suspension, and to the possibility of being caught by authorities. On the other hand, road safety campaings on the media seemed to be the kind of measure with the smallest potential to influence driver behaviour.

Os acidentes de trânsito são uma das principais causas de morte e invalidez no mundo inteiro, e projeções indicam que sua participação entre essas causas tende a aumentar no futuro. Estima-se que o fator humano contribua para a ocorrência de mais de 90% dos acidentes, e grande parte desta contribuição advém do comportamento. Nesta dissertação de mestrado, buscou-se identificar e caracterizar medidas de segurança de trânsito conforme sua influência em inibir o cometimento de infrações à legislação de trânsito por parte dos motoristas. Para tanto, foram conduzidas uma pesquisa qualitativa e uma pesquisa quantitativa. A pesquisa qualitativa, realizada através da técnica de Grupos Focados, foi utilizada para identificar as principais infrações de trânsito que contribuem para a ocorrência de acidentes, além de coletar subsídios para a elaboração da pesquisa quantitativa. Esta, por sua vez, consistiu na aplicação de um questionário auto-relatado a motoristas de automóvel da cidade de Porto Alegre. Como resultado, a pesquisa qualitativa indicou que as infrações que mais contribuem para os acidentes são a embriaguez, o excesso de velocidade e o avanço de sinal vermelho de semáforo. A pesquisa quantitativa permitiu concluir que as medidas de segurança de trânsito que mais influenciam os motoristas a não cometerem infrações de trânsito são aquelas relacionadas à restrição de direitos, como apreensão do veículo ou suspensão da habilitação, e à possibilidade de ser flagrado pelas autoridades. Por outro lado, as campanhas de conscientização na mídia demonstraram ser o tipo de medida com menor potencial para influenciar o comportamento dos motoristas. / Road traffic crashes are one of the main causes of death and disability worldwide, and it is believed that their share among these causes will grow in the future. The human factor contributes to over 90% of traffic crashes, and a great part of this contribution originates from human behaviour. This master’s thesis aimed to identify and characterize road safety measures according to their influence on driver behaviour, regarding the commitment of traffic offences. In order to do that, a qualitative and a quantitative survey were carried on. The qualitative survey was made with the Focus Group technique and was used to identify the traffic offences that contribute the most to road crashes, as well as to collect information to help preparing the quantitative survey. The last consisted in applying a self-reported questionnaire to automobile drivers from Porto Alegre, Brazil. As a result, the qualitative survey indicated that speeding, drunk driving and red light crossing are the traffic offences that contribute the most to road crashes. The quantitative survey allowed to conclude that the road safety measures with more influence on drivers, so they do not commit traffic offences, are those related to their rights restriction, like vehicle seizure or driver’s licence suspension, and to the possibility of being caught by authorities. On the other hand, road safety campaings on the media seemed to be the kind of measure with the smallest potential to influence driver behaviour.

This is a case study of a rural school in the Moloto area. The objective of the enquiry is to explore the responses of children to road safety input that they receive at school. Children’s experiences as road users were gathered through intensive interviews with them, their parents and teachers and corroborated by my observation of children using the Moloto road and other arterial roads in the village. The study was informed by the interpretivist paradigm. Road safety education is part of the mainstream curriculum in South African schools but the environment for delivering it effectively is counterproductive in a school that lacks resource materials and trained teachers. The little that is taking place, as the study shows, is class-based, lacks context and focuses on teaching pedestrian skills with no practical input. The community’s unsafe road use behaviour of walking in the middle of the road and crossing the road everywhere undermines whatever road safety skills children might have learnt at home or at school. Key findings of the study are: children’s development of pedestrian skills; children’s constructions of road safety knowledge and their value of life and road signs; the negative influence of the unsafe “road environment”; and children’s attitude to road safety. Although children theoretically know what to do when using the road, in practice they do not show safe road use behaviour. Their construction of road safety knowledge is mainly informed by the practices of the broad community. This paradox between what the literature prescribes, what the national curriculum entails and what the children apply in their everyday use of the roads is the main finding of the study. Although children are enthusiastic about road safety education the same cannot be said about the teachers who are demoralised and not sure whether what they are doing is right or wrong. However, the children understand the value of life and the danger of using the road infrastructure recklessly even though their road use behaviour suggests otherwise. The low level of formal education among parents and the lack of support for teachers from road safety officers do not help the situation. Effective road safety education delivery depends on a number of variables or factors. Where these conditions are not available, the whole process becomes a futile exercise. In conclusion, road safety education can be summarised as a process with sequenced goals: The provision of information about injury risks and how to avoid them, changing attitudes towards risk and safety, and altering behaviour. Training should include the development of clearly defined pedestrian skills through guidance by a more skilled individual and practice in the road environment. Education can thus underpin both legislative and environmental measures by creating a climate of opinion that enhances a culture of safety which is not evident in the Moloto community. It will take political will and resource allocation for road safety education for any meaningful impact to be made in delivering road safety education and pedestrian skills effectively in a rural school like the Moloto primary school in Mpumalanga. / Thesis (PhD)--University of Pretoria, 2010. / Early Childhood Education / unrestricted

Os critérios atualmente empregados para a definição da configuração do separador central em rodovias levam em consideração principalmente a massa de exposição ao risco. Para isso, analisam a largura do canteiro central e o VDM (volume diário médio). No entanto, para implantação de rodovias em pista dupla ou para a duplicação de rodovias existentes, a definição da largura do canteiro central bem como do possível emprego de dispositivos de contenção central muitas vezes não é uma tarefa simples, pois depende da análise conjunta de alguns fatores como os custos da movimentação de terra, da desapropriação, das soluções possíveis para drenagem, do atendimento à distância de visibilidade de parada, entre outros. Além disso, deve ser avaliado qual o impacto da configuração proposta para a separação central da rodovia na redução do custo social dos acidentes. Essa ultima avaliação é mais delicada e de difícil mensuração. Este texto apresenta a revisão bibliográfica dos principais critérios existentes nacionais e internacionais com relação ao separador físico central e aborda a questão das características dos acidentes que envolvem saída de pista. Através do estudo de caso de uma rodovia hipotética, foram analisados conjuntamente os custos de implantação da rodovia, a distância de visibilidade disponível e os custos dos acidentes para diferentes configurações de canteiro central. Por fim, foi apresentada uma análise benefício / custo incremental que, após avaliação mais precisa dos custos sociais dos acidentes, poderá ser empregada para tomada inicial de decisão quanto ao separador físico central da rodovia a ser empregado. / Criteria currently used to choose median or median barriers configurations on divided highways take into account mainly the risk exposure mass. For this, median width and ADTV (average daily traffic volumes) are analyzed. However, for deployment of divided highways or duplication of existing ones, the definition of median width as well as the potential use of median barrier is not always a simple task, because it depends on the joint analysis of factors such as earthmoving costs, land acquisition costs, drainage possible solutions, stop sight distance, among others. Furthermore, the impact of the proposed median configuration in reducing the social cost of accidents should also be estimated. This thesis presents a literature review of existing national and international median solution criteria and address the characteristics of run off the road accidents. Through a case study of a hypothetical highway, were analyzed jointly highway construction costs, available sight distance and accident costs for different widths of median. Finally, an analyze cost / benefit incremental, that could be used for making the initial decision about the central physical separator highway after proper calibration of social costs of accidents is presented.

As the movement to decriminalize marijuana has gained more support throughout the United States, as of early 2017, 21 states have decriminalized the possession of a small amount of marijuana for personal recreational use, and more states are expected to decriminalize marijuana (GOVERNING 2017). Despite this strong move toward decriminalizing marijuana, however, the consequences of implementing such a policy are still very much unknown. One of the concerns regarding this movement to decriminalize marijuana is its potential impact on road safety (Schrader 2015; Roberts 2017; Halsey 2015). Although there are a few studies that have examined the association between marijuana use and availability and traffic fatalities, these studies are correlational in nature and show divergent outcomes (Anderson and Ree 2011; Anderson et al. 2013). Furthermore, these studies do not examine the impact of decriminalizing marijuana on road safety. In order to fill this gap, my research investigates the causal association between marijuana decriminalization and traffic fatalities by using the synthetic control method, pioneered by Abadie et al. (2010). This study estimates the causal effects of 2009 Massachusetts's marijuana decriminalization on Massachusetts' total traffic fatalities by comparing Massachusetts's trends in total traffic fatalities and its synthetic counterpart. The results of this study show a temporary increase in the number of total traffic fatalities in Massachusetts compared to its synthetic counterpart between 2009 and 2012, suggesting marijuana decriminalization's detrimental effect on road safety. Future studies should consider investigating the heterogeneous effects of marijuana decriminalization on traffic fatalities based on age groups, gender, and residential density and the causal mechanism between marijuana decriminalization and traffic fatalities.

The research presented in this thesis is the result of field data collection conducted by the Utah Local Technical Assistance Program (Utah LTAP) in conjunction with the Utah Department of Transportation. The first step of the research was data collection from 18 road safety audits conducted throughout the state of Utah. These Road Safety Audits (RSA's) provided a wide variety of data that was used for the validation of the road safety audit quantification methodology. The purpose of this research is to provide quantification to the RSA process that will increase the benefits gained from implementing the RSA recommendations. Benefits derived from the implementation of RSA recommendations were found by assessing the change of risk from before and after safety improvements. The RSA quantification tool was developed to analyze projects in both urban and rural settings. The implementation of the RSA tool will help practitioners show the benefits that can be gained from the safety recommendations and help decision makers in allocating funds to the areas that pose the most risk. The tool will show the difference in risk that the improvements make and the cost effectiveness of different project alternatives.

The research presented in this thesis is the result of field data collection conducted by the Utah Local Technical Assistance Program (Utah LTAP) in conjunction with the Utah Department of Transportation. The first step of the research was data collection from 18 road safety audits conducted throughout the state of Utah. These Road Safety Audits (RSA's) provided a wide variety of data that was used for the validation of the road safety audit quantification methodology. The purpose of this research is to provide quantification to the RSA process that will increase the benefits gained from implementing the RSA recommendations. Benefits derived from the implementation of RSA recommendations were found by assessing the change of risk from before and after safety improvements. The RSA quantification tool was developed to analyze projects in both urban and rural settings. The implementation of the RSA tool will help practitioners show the benefits that can be gained from the safety recommendations and help decision makers in allocating funds to the areas that pose the most risk. The tool will show the difference in risk that the improvements make and the cost effectiveness of different project alternatives.

Traffic crashes tend to occur at relatively greater frequencies at particular locations, at particular time periods, and for particular subsets of drivers and vehicles. It is well recognized among the road safety community that crash-risk is highly elevated when inclement weather conditions occur in the winter. To present, most of the road safety studies focus on event-based analysis or seasonal analysis and give little attention to explore high-risk conditions at the daily temporal scale. The purpose of the study is to advance our understanding of high-risk crash conditions at the daily level and their occurrences in Southern Ontario, Canada. The study explores different definitions of high-crash days, and quantifies the influences of weather conditions, risk exposure, months and timing of precipitation on the likelihood of a high-crash day occurring using binary logistic regression model. Additionally, an approach for estimating the relative risk exposure using available traffic count data has also been developed. The results of the study show a small proportion of high-crash days are responsible for a considerable amount of traffic crashes during the winter. The risk of traffic crash is twice as high on high-crash days in comparison to non-high-crash days. The modeling approach well-fits the data and shows that winter weather conditions have significant influence on high-crash days with results being mostly consistent across the four study areas, Toronto, the Area Surrounding Toronto, London and the Area Surrounding London. Low temperature, heavy snowfalls, high wind speeds, high traffic volumes, early winter months, occurrence of precipitation in both morning and evening increase the odds of high-crash days to a large extent. The results of study could help to pre-schedule traffic operation and enforcement, to effectively distribute road safety resources and personnel, and to create situational awareness among road users and other stakeholders.

Highway Authorities in the United Kingdom have jurisdiction to control, maintain and improve the local highway network, and the Road Traffic Act 1988 places a duty on such authorities to take preventative measures to reduce road casualties. As such, engineers working for the Highway Authority are on the ‘front-line,’ and are required to deal directly with lay concerns relating to road safety. This study investigates the nature and characteristics of how local road safety issues are raised and how engineers respond to such issues in a local authority setting. A grounded theory methodology was applied in the collection and analysis of this data, and in the generation of subsequent emergent themes. Datasets were established containing textual data from correspondence between the lay public and the authority, and from local press reporting. This was augmented by 47 semi-structured interviews with engineers. The analysis demonstrates that road safety issues and their construction, form a distinct genre. There are certain characteristic structural elements and argumentative approaches, which are oft repeated, in lay formulations of road safety. Road safety issues are played out in a contested field, although engineers may have, in theory, the ‘expertise’ that grants them authority to assess, diagnose and implement mitigation measures; in practice they have little autonomy or control. Regulatory restrictions, political interference, resource impoverishment and a volatile public, severely limit engineers’ independence and discretion. In dealing with the exigencies and pressures of day-to-day front-line public service, engineers deploy certain strategies for ‘managing’ the public. These pragmatic strategies are examined in order to establish how engineers can best effect practical action, in the face of competing and often conflicting demands. In examining the rhetorical organisation of lay argumentative strategies, a ‘popular epidemiology’ of road safety is recreated. This term, borrowed from Brown (1992), encapsulates a folk philosophy with respect to accident causation and the measures that are considered necessary or appropriate to ameliorate/eliminate identified issues. It is suggested that in vivo formulations of road safety issues, such as the ‘accident waiting to happen’ are founded on vague premises, and constitute a category mistake. Projections from phenomenally troubling, yet largely unsubstantiable events, to those with profound material consequences, are neither necessary nor certain. In making decisions on substantial capital investments, engineers, by necessity, are required to assess competing sites on a more epistemically secure metric, namely the police road casualty record.