National Traffic Safety Index

Author(s):  
Young-Jun Kweon ◽  
Kwang Sik Kim
Keyword(s):  
2018 ◽  
Vol 239 ◽  
pp. 02003
Author(s):  
Philipp Sukhov ◽  
Vladimir Popov ◽  
Viktor Filippov

The volumes of freight and passenger traffic on the railways of the Russian Federation are increasing every year. Along with the increase in the transportation work, the likelihood of occurrence of undesirable incidents in railway transport increases. The assessment of the level of comprehensive (integrated) safety is an important scientific and technical problem in the current conditions of the functioning of railway transport. The methods used to assess the level of safety do not always meet the requirements of complexity in view of comparison of various-scale violations of traffic safety (crash, accident, faulty operation). The paper proposes a mathematical method for assessing the level of integrated safety in railway transport and calculation of the safety index of train traffic. For the calculation, statistical data for a certain period are used. These data summarized in a specialized dictionary of traffic safety violations, the mathematical treatment of which provides information on the level of integrated safety in railway transport in the Russian Federation. The proposed index allows determining the effectiveness of management decisions in the field of train traffic safety, as well as assessing the effectiveness of implementing certain innovations in the field of traffic safety. It is possible to use data on integrated traffic safety to reduce insurance premiums for cargo insurance on railways.


2016 ◽  
Vol 9 (1) ◽  
pp. 35-49
Author(s):  
Matus Sucha ◽  
Lucie Viktorova ◽  
Ralf Risser

Background: There is agreement that road user behaviour is the most important contributing factor for traffic accidents. It is therefore essential to understand better the causes of accidents and design remedies that can efficiently treat them. The fatality rate per 10,000 people is about 30 times higher in developing countries than in high-income countries These differences, beside other factors, can be explained in terms of different traffic safety cultures. Objective: The general mission of this work was to contribute to traffic safety by gaining an understanding of the differences in traffic culture in countries worldwide. Furthermore, we sought to explore and understand the needs and beliefs concerning traffic safety in different countries worldwide and the implications for the objective traffic safety situation (Traffic Safety Index – TSI) and for the stage of the economic development of the country (Gross Domestic Product – GDP). Methods: A simple questionnaire with three questions focused on beliefs and opinions about traffic safety was used. Altogether, 142 respondents from 36 countries filled in the questionnaire. The data was analysed using both statistical methods and qualitative analysis of the responses. Results: The results indicated major differences in the traffic safety cultures embraced by different countries. In general, two approaches to traffic safety culture can be identified. In the first case, traffic safety culture is viewed as an objective reality which the respondents conceive of as leading to greater safety. The second case involves the emphasis being placed particularly on the elimination of a threat to life and health. Conclusion: People from countries with a poorer traffic safety record tend to underline the importance of traffic safety. No evidence of a relationship between the economic performance of the country (GDP), the traffic safety culture standard, and the Traffic Safety Index was found. Finally, the implications of the results for practice are discussed with a view to the practical implementation of measures to improve traffic safety.


2017 ◽  
Vol 43 (3) ◽  
pp. 43-51 ◽  
Author(s):  
Juan Juan Hu ◽  
Feng Li ◽  
Bing Han ◽  
Jinbao Yao

As the very important parts of the expressway system, on and off ramps have a great effect on the operation effect of expressways. Once congestion occurs at on and off ramps, it will directly affect the safety of the expressway and vehicles. So this paper first analyzes the location design of on ramps, the length and the influences on the expressway running state of off ramp downstream traffic state, and establishes the expressway operation models based at on and off ramps. The expressway operation models include off ramp delay model, on ramp delay model, expressway delay model and side road delay model under the influence of the distance between on and off ramp and traffic volume. At the same time, the paper analyzes the connection between the traffic operation state and traffic safety, and establishes the expressway safety model based on congestion degree. Through simulation verification, the impact of on and off ramp on the security of the expressway is analyzed. In the simulation, safety rank division is simulated to verify and safety index of different safety ranks. Finally the paper concludes that the delay caused by traffic of the on and off ramps can decrease the safety of expressway.


Author(s):  
Zhaoxiang He ◽  
Xiao Qin

Travelers around the world are concerned with choosing not only the quickest route from one point to another but also the safest route. Traffic safety has always been a major public concern, and traffic safety performance should be constantly evaluated so that both reactive and proactive countermeasures can help reduce crashes. This study developed a methodology for incorporating safety aspects into travelers’ pathfinding process. The safe pathfinding process included two main parts: a route-specific safety hazard index and a route-finding algorithm that considered both travel time and safety. The ratio of the deceleration rate to avoid a crash to the maximum available deceleration rate was chosen as the proxy for traffic safety. The safety hazard index was formulated by using the collision mechanism along the roadway segment and at the intersection. Motorist-specific information (e.g., vehicle type, age, pavement condition) was also included in the safety index model so that a traveler’s individual needs could be considered. The pathfinding algorithm, which combined mobility and safety, had three objectives: shorter travel time, lower route safety hazard index, and avoidance of sites with the highest safety hazard index along the route. The methodology was applied in a real-world street network to demonstrate its use and prove the concept of finding a safe path.


Author(s):  
Kevin E. Hanley ◽  
A. Reed Gibby ◽  
Thomas C. Ferrara

Accident reduction factors (ARFs) are mechanisms that the California Department of Transportation employs in calculating Traffic Safety Index values, which are used to prioritize safety-improvement projects on California state highways. Many factors that affect motorist safety have changed over the nearly 30 years in which ARFs have been used in the Traffic Safety Index Program. It is therefore appropriate to review and update, as needed, these accident-reduction factors. The research focused on four accident-reduction factors that are currently in use (rumble-strip installation, shoulder widening, superelevation correction, and curve correction). An accident-reduction factor was developed for a fifth treatment category (wet-pavement treatments). Data were gathered for all projects proposed for funding in the state of California’s Safety Improvement Program from 1985 through 1995. Projects completed from 1988 through 1992 were considered for inclusion in a before-and-after study that employed empirical Bayesian statistical analysis. A Bayesian statistical software package, BEATS (Bayesian Estimation of Accidents in Transportation Studies), was used in the analysis. The study reviewed scope of work for each of the projects of interest that were completed from 1988 to 1992. Thirty projects—the most frequently occurring individual treatments and treatment combinations—were categorized by treatment type and analyzed. Accident-reduction factors of sufficient statistically significant strength were found for wet-pavement treatments, rumble-strip installations, and shoulder-widening projects. Data for shoulder widening, superelevation correction, and curve correction projects also are presented, but small sample size hampered statistical significance for these projects. Results of the study revealed the importance of improving curve radius during superelevation correction and lane- and/or shoulder-widening treatments.


2013 ◽  
Vol 411-414 ◽  
pp. 2710-2714
Author(s):  
Xin Sun ◽  
Chang Cheng Li ◽  
Zhi Zhang ◽  
Jian Dong Zhao

Because the current research on traffic level has not yet been achieved classification, it cannot timely and effectively provide the basis for the public transportation and safety management of the traffic control department. Introduce traffic safety index based on toll data to evaluate freeway traffic levels. Firstly, combined with the relevant indicators of traffic engineering, put forward the concept of freeway traffic safety index; secondly, calculate the traffic safety index by analyzing real-time toll data; finally, in order to improve the accuracy of evaluation, have an optimization of traffic safety index definition. Application on the Beijing-Hong Kong-Macao freeway shows that traffic safety index can be combined with monitoring data to evaluate the condition of road sections and the road network, and its historical data can be used to predict the road traffic conditions, and provide effective guidance for freeway traffic safety operation.


2005 ◽  
Vol 10 (1) ◽  
pp. 25-38 ◽  
Author(s):  
Hilde Iversen ◽  
Torbjørn Rundmo ◽  
Hroar Klempe

Abstract. The core aim of the present study is to compare the effects of a safety campaign and a behavior modification program on traffic safety. As is the case in community-based health promotion, the present study's approach of the attitude campaign was based on active participation of the group of recipients. One of the reasons why many attitude campaigns conducted previously have failed may be that they have been society-based public health programs. Both the interventions were carried out simultaneously among students aged 18-19 years in two Norwegian high schools (n = 342). At the first high school the intervention was behavior modification, at the second school a community-based attitude campaign was carried out. Baseline and posttest data on attitudes toward traffic safety and self-reported risk behavior were collected. The results showed that there was a significant total effect of the interventions although the effect depended on the type of intervention. There were significant differences in attitude and behavior only in the sample where the attitude campaign was carried out and no significant changes were found in the group of recipients of behavior modification.


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