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Accident; Analysis and Prevention

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https://www.readbyqxmd.com/read/28215657/methodological-considerations-with-data-uncertainty-in-road-safety-analysis
#1
Matthias Schlögl, Rainer Stütz
The analysis of potential influencing factors that affect the likelihood of road accident occurrence has been of major interest for safety researchers throughout the recent decades. Even though steady methodological progresses were made over the years, several impediments pertaining to the statistical analysis of crash data remain. While issues related to methodological approaches have been subject to constructive discussion, uncertainties inherent to the most fundamental part of any analysis have been widely neglected: data...
February 16, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28214710/a-preliminary-investigation-of-the-relationships-between-historical-crash-and-naturalistic-driving
#2
Anurag Pande, Sai Chand, Neeraj Saxena, Vinayak Dixit, James Loy, Brian Wolshon, Joshua D Kent
This paper describes a project that was undertaken using naturalistic driving data collected via Global Positioning System (GPS) devices to demonstrate a proof-of-concept for proactive safety assessments of crash-prone locations. The main hypothesis for the study is that the segments where drivers have to apply hard braking (higher jerks) more frequently might be the "unsafe" segments with more crashes over a long-term. The linear referencing methodology in ArcMap was used to link the GPS data with roadway characteristic data of US Highway 101 northbound (NB) and southbound (SB) in San Luis Obispo, California...
February 16, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28213206/selected-aspects-of-prior-and-likelihood-information-for-a-bayesian-classifier-in-a-road-safety-analysis
#3
Marzena Nowakowska
The development of the Bayesian logistic regression model classifying the road accident severity is discussed. The already exploited informative priors (method of moments, maximum likelihood estimation, and two-stage Bayesian updating), along with the original idea of a Boot prior proposal, are investigated when no expert opinion has been available. In addition, two possible approaches to updating the priors, in the form of unbalanced and balanced training data sets, are presented. The obtained logistic Bayesian models are assessed on the basis of a deviance information criterion (DIC), highest probability density (HPD) intervals, and coefficients of variation estimated for the model parameters...
February 14, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28208099/the-impact-of-walking-while-using-a-smartphone-on-pedestrians-awareness-of-roadside-events
#4
Ming-I Brandon Lin, Yu-Ping Huang
Previous studies have shown that using a cell phone to talk or text while walking changes gait kinematics and encourages risky street-crossing behaviors. However, less is known about how the motor-cognitive interference imposed by smartphone tasks affects pedestrians' situational awareness to environmental targets relevant to pedestrian safety. This study systematically investigated the influence of smartphone use on detection of and responses to a variety of roadside events in a semi-virtual walking environment...
February 13, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28189944/time-series-trends-of-the-safety-effects-of-pavement-resurfacing
#5
Juneyoung Park, Mohamed Abdel-Aty, Jung-Han Wang
This study evaluated the safety performance of pavement resurfacing projects on urban arterials in Florida using the observational before and after approaches. The safety effects of pavement resurfacing were quantified in the crash modification factors (CMFs) and estimated based on different ranges of heavy vehicle traffic volume and time changes for different severity levels. In order to evaluate the variation of CMFs over time, crash modification functions (CMFunctions) were developed using nonlinear regression and time series models...
February 9, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28189943/effects-of-road-infrastructure-and-traffic-complexity-in-speed-adaptation-behaviour-of-distracted-drivers
#6
Oscar Oviedo-Trespalacios, Md Mazharul Haque, Mark King, Simon Washington
The use of mobile phones while driving remains a major human factors issue in the transport system. A significant safety concern is that driving while distracted by a mobile phone potentially modifies the driving speed leading to conflicts with other road users and consequently increases crash risk. However, the lack of systematic knowledge of the mechanisms involved in speed adaptation of distracted drivers constrains the explanation and modelling of the extent of this phenomenon. The objective of this study was to investigate speed adaptation of distracted drivers under varying road infrastructure and traffic complexity conditions...
February 9, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28189059/augmented-reality-warnings-in-vehicles-effects-of-modality-and-specificity-on-effectiveness
#7
Felix Schwarz, Wolfgang Fastenmeier
In the future, vehicles will be able to warn drivers of hidden dangers before they are visible. Specific warning information about these hazards could improve drivers' reactions and the warning effectiveness, but could also impair them, for example, by additional cognitive-processing costs. In a driving simulator study with 88 participants, we investigated the effects of modality (auditory vs. visual) and specificity (low vs. high) on warning effectiveness. For the specific warnings, we used augmented reality as an advanced technology to display the additional auditory or visual warning information...
February 8, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28189058/using-data-mining-techniques-to-predict-the-severity-of-bicycle-crashes
#8
Gabriele Prati, Luca Pietrantoni, Federico Fraboni
To investigate the factors predicting severity of bicycle crashes in Italy, we used an observational study of official statistics. We applied two of the most widely used data mining techniques, CHAID decision tree technique and Bayesian network analysis. We used data provided by the Italian National Institute of Statistics on road crashes that occurred on the Italian road network during the period ranging from 2011 to 2013. In the present study, the dataset contains information about road crashes occurred on the Italian road network during the period ranging from 2011 to 2013...
February 8, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28187874/falling-while-walking-a-hidden-contributor-to-pedestrian-injury
#9
Jennifer Oxley, Steve O'Hern, Duane Burtt, Ben Rossiter
Walking is a sustainable mode of transportation which is beneficial to both individuals and to the broader community, however, there are risks and it is essential that road design and operation provides safe conditions for walking. In Victoria, pedestrians represent one of the most vulnerable road user groups, accounting for approximately 12% of all road fatalities and serious injuries. These figures largely represent injuries where the pedestrian has been struck by a vehicle with the extent of pedestrian-only injuries largely un-reported...
February 7, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28187338/a-hybrid-latent-class-analysis-modeling-approach-to-analyze-urban-expressway-crash-risk
#10
Rongjie Yu, Xuesong Wang, Mohamed Abdel-Aty
Crash risk analysis is rising as a hot research topic as it could reveal the relationships between traffic flow characteristics and crash occurrence risk, which is beneficial to understand crash mechanisms which would further refine the design of Active Traffic Management System (ATMS). However, the majority of the current crash risk analysis studies have ignored the impact of geometric characteristics on crash risk estimation while recent studies proved that crash occurrence risk was affected by the various alignment features...
February 7, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28179069/development-and-evaluation-of-a-web-based-software-for-crash-data-collection-processing-and-analysis
#11
Alfonso Montella, Salvatore Chiaradonna, Giorgio Criscuolo, Salvatore De Martino
First step of the development of an effective safety management system is to create reliable crash databases since the quality of decision making in road safety depends on the quality of the data on which decisions are based. Improving crash data is a worldwide priority, as highlighted in the Global Plan for the Decade of Action for Road Safety adopted by the United Nations, which recognizes that the overall goal of the plan will be attained improving the quality of data collection at the national, regional and global levels...
February 5, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28171803/reforming-the-road-freight-transportation-system-using-systems-thinking-an-investigation-of-coronial-inquests-in-australia
#12
Sharon Newnam, Natassia Goode, Paul Salmon, Mark Stevenson
Road freight transport is considered to be one of the most dangerous industries in Australia, accounting for over 30% of all work fatalities. Whilst system reform (i.e., change to policy and practice) is needed, it is not clear what this reform should be, or what approaches should be used to drive it. This article argues that road freight transportation reform should be underpinned by a systems thinking approach. Efforts to understand crash causation should be focused beyond the driver and identify contributing factors at other levels with the road freight system...
February 4, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28167421/self-reported-vs-state-recorded-motor-vehicle-collisions-among-older-community-dwelling-individuals
#13
B A Singletary, A N Do, J P Donnelly, C Huisingh, M T Mefford, R Modi, F L Mondesir, Y Ye, C Owsley, G McGwin
INTRODUCTION: Motor vehicle collisions (MVCs) continue to place an increased burden on both individuals and health care systems. Self-reported and state-recorded police reports are the most common methods for MVC evaluation in epidemiologic studies, with varying degrees of agreement of information when compared in previous studies. The objective of the current study is to address the differences in MVC reporting and provide a more robust measure of the agreement between self-reported and state-recorded MVCs in a community dwelling population of older adults...
February 3, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28167420/the-influence-of-passenger-car-front-shape-on-pedestrian-injury-risk-observed-from-german-in-depth-accident-data
#14
Guibing Li, Mathew Lyons, Bingyu Wang, Jikuang Yang, Dietmar Otte, Ciaran Simms
Quantified relationships between passenger car front shape and pedestrian injury risk derived from accident data are sparse, especially considering the significant recent changes in car front design. The purpose of this paper is therefore to investigate the detailed effects of passenger car front shape on injury risk to a pedestrian's head, thorax, pelvis and leg in the event of a vehicle pedestrian impact. Firstly, an accident sample of 594 pedestrian cases captured during 2000-2015 from the German In-Depth Accident Study (GIDAS) database was employed...
February 2, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28161559/commentary-driver-training-effects-of-commentary-exposure-practice-and-production-on-hazard-perception-and-eye-movements
#15
Angela H Young, David Crundall, Peter Chapman
Commentary driving typically involves being trained in how to produce a verbal running commentary about what you can see, what you are doing, what might happen and what action you will take to avoid potential hazards, while driving. Although video-based commentary training has been associated with subsequent hazard perception improvements, it can have a negative impact on hazard perception when a live commentary is produced at test (Young, Chapman, & Crundall, 2014). In the current study we use balanced training and testing blocks to isolate the effects of commentary exposure, production of a commentary with and without practice, and learning from earlier self-generation of commentary on behavioural and eye movement measures...
February 2, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28129824/an-experiment-on-rider-stability-while-mounting-comparing-middle-aged-and-elderly-cyclists-on-pedelecs-and-conventional-bicycles
#16
D A M Twisk, S Platteel, G R Lovegrove
Pedelecs, popular among elderly cyclists, are associated with a higher injury risk than conventional bicycles. About 17% of these injuries are due to falls while (dis)mounting. Using instrumented bicycles, this study aimed to identify factors contributing to the stability of self-chosen mounting methods in four user groups: 30-45 versus 65+ years of age and males versus females. Mounting stability on pedelecs was compared with that on conventional bicycles, in controlled experimental setting (task in a fenced off parking lot) but also in real traffic conditions (traffic light turns green)...
January 24, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28118864/alcohol-consumption-and-cycling-in-contrast-to-driving
#17
Carmen Hagemeister, Markus Kronmaier
In Germany, the legal blood alcohol limit for cyclists is much higher (0.16 percent) than the limit for drivers (0.05 percent) - as long as no crash has occurred. The proportion of police-recorded crashes with personal damage under the influence is higher for cyclists than drivers, and the blood alcohol concentrations are higher for cyclists than drivers. 63 women and 204 men who drive a car and use a bike and drink alcohol participated in the online study. In the sample, cycling under the influence (CUI) was more frequent and was observed more frequently among friends than driving under the influence (DUI)...
January 21, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/27993315/effect-of-physical-effort-on-mental-workload-of-cyclists-in-real-traffic-in-relation-to-age-and-use-of-pedelecs
#18
M J Boele-Vos, J J F Commandeur, D A M Twisk
To improve cycling safety, insight is required into the factors that contribute to road safety of older cyclists. From the wide range of possible factors, this paper addresses the role of physical effort on mental workload of cyclists with the aim to investigate whether physical effort affects mental workload of cyclists in real traffic in a field experiment. Two instrumented bicycles, a conventional bicycle and a pedelec, were used. Mental workload of cyclists in two age groups - 30-45 years and 65 years and over - was measured by means of a secondary cognitive task requiring the detection and reaction to visual stimuli on a cycle route that varied in physical effort and task complexity...
December 16, 2016: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/27912895/risk-management-abilities-in-multimodal-maritime-supply-chains-visibility-and-control-perspectives
#19
Jyri Vilko, Paavo Ritala, Jukka Hallikas
Supply chain complexity and disintegration lead to increased uncertainty from a stakeholders' perspective, which is emerging as one of the major challenges of risk management. The ability to identify risks has weakened, as the responsibility of supply chain risk management is handed over to outside service providers. Regardless, the risks, their visibility and their impact depend on the position of the companies in the supply chain. The actors in the chain must therefore collaborate to create effective risk management conditions...
November 29, 2016: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28131970/when-driving-on-the-left-side-is-safe-safety-of-the-diverging-diamond-interchange-ramp-terminals
#20
Boris Claros, Praveen Edara, Carlos Sun
How safe are the ramp terminals of a diverging diamond interchange (DDI)? This paper answered this question using data from DDI sites in Missouri. First, crash prediction models for ramp terminals for different crash severities were developed. These models were then utilized in the Empirical Bayes (EB) evaluation of DDI ramp terminals. Due to inconsistencies in crash reporting for freeways in Missouri, individual crash reports were reviewed to properly identify ramp terminal crashes. A total of 13,000 crash reports were reviewed for model development and EB evaluation...
March 2017: Accident; Analysis and Prevention
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