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Article

Improvement of Road Safety through Appropriate Cargo Securing Using Outliers

1
Department of Logistics, University of Defence, 662 10 Brno, Czech Republic
2
Department of Quantitative Methods, University of Defence, 662 10 Brno, Czech Republic
*
Author to whom correspondence should be addressed.
Academic Editor: Aoife Ahern
Sustainability 2021, 13(5), 2688; https://doi.org/10.3390/su13052688
Received: 30 December 2020 / Revised: 5 February 2021 / Accepted: 22 February 2021 / Published: 2 March 2021
(This article belongs to the Special Issue Traffic Safety within a Sustainable Transportation System)
The article focuses on evaluating a transportation experiment that intends to improve road safety by analyzing transport shocks that significantly affect the system of securing the load, vehicle, driver, and other aspects. Within Europe, improper or insufficient securing of loads causes up to 25% of all cargo vehicle accidents. Our transport experiment consists of eight rides of a Tatra truck. The measured values of shocks (acceleration coefficients) are statistically evaluated. Three hypotheses are established for these purposes. First, it is proven that the probability distributions of the shocks values differ statistically significantly among individual rides, namely in their shape and median value. Thus further statistical analyses are performed separately for the individual rides, axes, and the accelerometer locations. These analyses prove significant exceedances of the normatively set limits given by the EN 12195-1:2010 standard, which is potentially risky. Especially for the z axis and y axis, the set 20% limit was exceeded in 75.0% and 56.3% of cases, respectively. In the case of the x axis, the established 20% limit was practically not exceeded at all. The analysis of exceeding the permitted limits (the statistical evaluation of the second and third established hypothesis) is based on boxplots that graphically describe the individual rides, as well as on the found contaminated log-normal distribution of the values of the acceleration coefficients in the individual rides. The last hypothesis regarding exceeding the double value of the permitted limit is rejected. Methods of statistical comparison are used during data analysis. The probability distribution of acceleration coefficients is modeled using a contaminated log-normal distribution. View Full-Text
Keywords: road safety; transport experiment; shock; truck accident; cargo securing; boxplot; outliers; contaminated distribution road safety; transport experiment; shock; truck accident; cargo securing; boxplot; outliers; contaminated distribution
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MDPI and ACS Style

Vlkovský, M.; Neubauer, J.; Malíšek, J.; Michálek, J. Improvement of Road Safety through Appropriate Cargo Securing Using Outliers. Sustainability 2021, 13, 2688. https://doi.org/10.3390/su13052688

AMA Style

Vlkovský M, Neubauer J, Malíšek J, Michálek J. Improvement of Road Safety through Appropriate Cargo Securing Using Outliers. Sustainability. 2021; 13(5):2688. https://doi.org/10.3390/su13052688

Chicago/Turabian Style

Vlkovský, Martin, Jiří Neubauer, Jiří Malíšek, and Jaroslav Michálek. 2021. "Improvement of Road Safety through Appropriate Cargo Securing Using Outliers" Sustainability 13, no. 5: 2688. https://doi.org/10.3390/su13052688

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