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Natalia Casado-Sanz
Departamento de Ingeniería del Transporte, Territorio y Urbanismo, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain

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Journal article
Published: 13 March 2020 in Sustainability
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Globally, road traffic accidents are an important public health concern which needs to be tackled. A multidisciplinary approach is required to understand what causes them and to provide the evidence for policy support. In Spain, one of the roads with the highest fatality rate is the crosstown road, a particular type of rural road in which urban and interurban traffic meet, producing conflicts and interference with the population. This paper contributes to the previous existing research on the Spanish crosstown roads, providing a new vision that had not been analyzed so far: the driver’s perspective. The main purpose of the investigation is to identify the contributing factors that increment the likelihood of a fatal outcome based on single-vehicle crashes, which occurred on Spanish crosstown roads in the period 2006-2016. In order to achieve this aim, 1064 accidents have been analyzed, applying a latent cluster analysis as an initial tool for the fragmentation of crashes. Next, a multinomial logit (MNL) model was applied to find the most important factors involved in driver injury severity. The statistical analysis reveals that factors such as lateral crosstown roads, low traffic volumes, higher percentages of heavy vehicles, wider lanes, the non-existence of road markings, and finally, infractions, increase the severity of the drivers’ injuries.

ACS Style

Natalia Casado-Sanz; Begoña Guirao; Maria Attard. Analysis of the Risk Factors Affecting the Severity of Traffic Accidents on Spanish Crosstown Roads: The Driver’s Perspective. Sustainability 2020, 12, 2237 .

AMA Style

Natalia Casado-Sanz, Begoña Guirao, Maria Attard. Analysis of the Risk Factors Affecting the Severity of Traffic Accidents on Spanish Crosstown Roads: The Driver’s Perspective. Sustainability. 2020; 12 (6):2237.

Chicago/Turabian Style

Natalia Casado-Sanz; Begoña Guirao; Maria Attard. 2020. "Analysis of the Risk Factors Affecting the Severity of Traffic Accidents on Spanish Crosstown Roads: The Driver’s Perspective." Sustainability 12, no. 6: 2237.

Journal article
Published: 22 September 2019 in Sustainability
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According to the Spanish General Traffic Accident Directorate, in 2017 a total of 351 pedestrians were killed, and 14,322 pedestrians were injured in motor vehicle crashes in Spain. However, very few studies have been conducted in order to analyse the main factors that contribute to pedestrian injury severity. This study analyses the accidents that involve a single vehicle and a single pedestrian on Spanish crosstown roads from 2006 to 2016 (1535 crashes). The factors that explain these accidents include infractions committed by the pedestrian and the driver, crash profiles, and infrastructure characteristics. As a preliminary tool for the segmentation of 1535 pedestrian crashes, a k-means cluster analysis was applied. In addition, multinomial logit (MNL) models were used for analysing crash data, where possible outcomes were fatalities and severe and minor injured pedestrians. According to the results of these models, the risk factors associated with pedestrian injury severity are as follows: visibility restricted by weather conditions or glare, infractions committed by the pedestrian (such as not using crossings, crossing unlawfully, or walking on the road), infractions committed by the driver (such as distracted driving and not respecting a light or a crossing), and finally, speed infractions committed by drivers (such as inadequate speed). This study proposes the specific safety countermeasures that in turn will improve overall road safety in this particular type of road.

ACS Style

Natalia Casado-Sanz; Begoña Guirao; Antonio Lara Galera; Maria Attard. Investigating the Risk Factors Associated with the Severity of the Pedestrians Injured on Spanish Crosstown Roads. Sustainability 2019, 11, 5194 .

AMA Style

Natalia Casado-Sanz, Begoña Guirao, Antonio Lara Galera, Maria Attard. Investigating the Risk Factors Associated with the Severity of the Pedestrians Injured on Spanish Crosstown Roads. Sustainability. 2019; 11 (19):5194.

Chicago/Turabian Style

Natalia Casado-Sanz; Begoña Guirao; Antonio Lara Galera; Maria Attard. 2019. "Investigating the Risk Factors Associated with the Severity of the Pedestrians Injured on Spanish Crosstown Roads." Sustainability 11, no. 19: 5194.

Journal article
Published: 01 March 2019 in Research in Transportation Business & Management
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The study of the relations of dependence between population ageing and road safety are becoming increasingly important with the ageing of the population in industrialised nations, which will imply a substantial increase in the number of older drivers and also in older pedestrians and cyclists. While there is extensive literature on the decline of driving and pedestrian skills in the elderly, few studies focus on the impact of age on accident severity according to the type of road. This approach has mainly been used for high-capacity routes, without considering rural roads. Rural roads are also associated with small towns, which have a higher percentage of elderly people who are more dependent on driving due to the absence or limitations of urban public transportation. In recent years Spain has seen a sharp rise in traffic accidents, especially in rural crosstown roads, and population ageing should be analysed as a potential risk factor. This paper contributes to the limited existing literature on rural road safety by applying a logistic regression model to the accidents on Spanish crosstown roads involving one vehicle and one elderly pedestrian in the period 2006–2015. The objective of the study is to analyse the conditional probability of a fatal outcome in the case of a crash resulting in at least one severe injury. On crosstown roads, territorial indicators associated to pedestrian mobility such as the physical severance index are revealed as interesting new variables to be considered in future research.

ACS Style

Natalia Casado-Sanz; Begoña Guirao; Daniel Gálvez-Pérez. Population ageing and rural road accidents: Analysis of accident severity in traffic crashes with older pedestrians on Spanish crosstown roads. Research in Transportation Business & Management 2019, 30, 100377 .

AMA Style

Natalia Casado-Sanz, Begoña Guirao, Daniel Gálvez-Pérez. Population ageing and rural road accidents: Analysis of accident severity in traffic crashes with older pedestrians on Spanish crosstown roads. Research in Transportation Business & Management. 2019; 30 ():100377.

Chicago/Turabian Style

Natalia Casado-Sanz; Begoña Guirao; Daniel Gálvez-Pérez. 2019. "Population ageing and rural road accidents: Analysis of accident severity in traffic crashes with older pedestrians on Spanish crosstown roads." Research in Transportation Business & Management 30, no. : 100377.

Journal article
Published: 30 October 2018 in Transportation Research Procedia
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The recent spike in the accident rate of urban Spanish roads, after years of negative growth, has been accompanied by a serious increase in accidents in a specific type of road: crosstown roads (called “travesías” in Spanish). Thus, in 2013, there was a 47% increase in accidents with casualties in these routes over 2012 data; in 2014, an 88% increase over the previous year and, although 2015 data reflect a slight decline (-3%), figures are still worrying. Moreover, these routes have always shown a higher fatality rate than the rest of urban roads. The road safety analysis of these routes is complicated due to the diversity of the features, the dispersion of the data and the complete lack of related literature. The main target of this paper is the road safety characterization of these specific routes in order to explain why the accidents in these routes happen, their severity and their relation with the ageing process in Spain, where in 2012 the population over 65 years old was 17%, this ratio being even higher in small cities. Spanish General Directorate of Traffic (DGT) provided database (2006-2013) on accident statistics and the methodology was focused on cluster analysis, identifying 3 homogeneous groups of crosstown roads. With the final clusters, different behaviour patterns towards road safety were modelled and analysed, paying special attention to “vulnerable road users” (according to DGT definition). Results revealed the clear influence of the age variable in two of the clusters, but also some shortcomings in the database, which collects information on some routes that do not fulfil the conditions to be considered “passing routes”.

ACS Style

Natalia Casado-Sanz; Begoña Guirao. Analysis of the impact of population ageing and territorial factors on crosstown roads safety: the Spanish case study. Transportation Research Procedia 2018, 33, 283 -290.

AMA Style

Natalia Casado-Sanz, Begoña Guirao. Analysis of the impact of population ageing and territorial factors on crosstown roads safety: the Spanish case study. Transportation Research Procedia. 2018; 33 ():283-290.

Chicago/Turabian Style

Natalia Casado-Sanz; Begoña Guirao. 2018. "Analysis of the impact of population ageing and territorial factors on crosstown roads safety: the Spanish case study." Transportation Research Procedia 33, no. : 283-290.