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1

The use of neural networks to forecast the number of road accidents in Poland

Gorzelańczyk Piotr

Zeszyty Naukowe. Transport / Politechnika Śląska

|

2023

|

z. 118

45--54

EN

Every year, a large number of traffic accidents occur on Polish roads. However, the pandemic of recent years has reduced the number of these accidents, although the number is still very high. For this reason, all measures should be taken to reduce this number. This article aims to forecast the number of road accidents in Poland. Thus, using Statistica software, the annual data on the number of road accidents in Poland were analyzed. Based on actual past data, a forecast was made for the future, for the period 2022-2040. Forecasting the number of accidents in Poland was conducted using selected neural network models. The results show that a reduction in the number of traffic accidents is likely. The choice of the number of random samples (learning, testing and validation) affects the results obtained.

2

Odpowiedzialność karna operatora testowanego pojazdu autonomicznego za spowodowanie wypadku drogowego

Niemiec Marcin

Paragraf na Drodze

|

2023

|

Nr 1

9--19

PL

Przedmiotem artykułu jest problematyka odpowiedzialności karnej za spowodowanie wypadku przez operatora testowanego pojazdu autonomicznego. Autor analizuje zapisy Oddziału 6 ustawy Prawo o ruchu drogowym (Wykorzystanie dróg na potrzeby prac badawczych nad pojazdami autonomicznymi), w którym znalazły się przepisy zezwalające na prowadzenie na drogach publicznych przejazdów testowych pojazdów autonomicznych. W artykule podjęta została próba zdefiniowania kierującego takim pojazdem, wskazane zostały jego obowiązki, a także wyjaśniono użyte w ustawie pojęcie „prac badawczych”. Rozważania rozszerzone są o kwestię określenia zarzucanego czynu w przypadku konieczności przedstawienia zarzutów operatorowi pojazdu autonomicznego w toku postępowania karnego. W trakcie przygotowywania artykułu wykorzystano metody badawcze, takie jak analiza tekstu normatywnego, analiza poglądów doktryny oraz orzecznictwa, a także analiza przypadku indywidualnego. Artykuł ma znaczenie dla podmiotów prowadzących lub nadzorujących postępowanie karne - zarówno na etapie postępowania przygotowawczego, jak i sądowego - albowiem odnosi się do problematyki, która w ustawie Prawo o ruchu drogowym pozostała niezdefiniowana oraz niewyjaśniona.

EN

The issues of the liability for causing an accident by the operator of a tested autonomous vehicle are discussed. The author analyzes the provisions of Section 6 of the Act on Road Traffic (The use of roads for the purpose of research work on autonomous vehicles), which include regulations allowing testing autonomous vehicles on public roads. A definition of the operator of such a vehicle is proposed together with his/her responsibilities. Also, the term “research work” used in the Act is clarified. Moreover, the issue of specifying the charge laid in the case of the necessity to bring a charge against an autonomous vehicle operator in the course of criminal proceedings is considered. In the preparation of the paper research methods including the analysis of the normative text, the analysis of the views of doctrine and judicial decisions as well as the analysis of an individual case were employed. The paper is of significance for organs conducting or supervising criminal proceedings - at both pre-trail and trial stages - because it concerns the issues which in the Act on road traffic have not been so far defined or elucidated.

3

Urban traffic incident management, using network analysis to improve the evacuation time to healthcare facilities

Saker Adel, Akakba Ahmed

Geomatics, Landmanagement and Landscape

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2023

|

no. 3

109--119

EN

The city of Biskra is ranked the second city in Algeria with the highest traffic accident rate. There are multiple causes of accidents that derive from the diversity of traffic. In addition, its geographical location as a crossroads between the northeast and the south of Algeria is a major factor. Biskra is also considered a commercial and industrial city that receives daily large flows of travellers and merchandise. Traffic accidents are a complex problems that is dealt with in several approaches. In this research, from a geographical point of view, we will contribute to improve the trajectory of intervention and evacuation. Therefore, this research paper aims to create a geodatabase including the road network with associated entities to carry out spatiotemporal analyses and evaluate the service area of health facilities in terms of the nearest path. This paper uses GIS tools for evacuation to the public hospital employing a Network Analyst. This study may serve as a decision-making aid for the local authorities of this city in terms of evacuation and intervention in the event of a road accident. It provides real-time information on the location of the accident and the nearest path along with an estimated time. The outputs of these analyses can determine a map of accessibility, which allows for training in order to improve the real-time evacuation. As a result, this approach will lead to the reduction of evacuation time by less than 10 minutes, and thus leading to a decrease in the number of fatalities.

4

Analysis of road accident causes in the voivodships in the years 2014-2021 in the aspect of socio-economic costs – towards the implementation of sustainable development

Pangsy-Kania Sylwia, Romanowska Aleksandra, Budzyński Marcin, Wierzbicka Katarzyna, Prystrom Joanna

Economics and Environment

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2023

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No. 2

308--327

EN

The article addresses the topic of road safety. The objective of the research was to assess road accidents caused by voivodships. The analysis took account of the socio-economic differences in the voivodships, which deter-mine the unit costs of fatalities and injuries. A descriptive analysis is given to show the dynamics of changes in the years 2014-2021 in the voivodships and how different factors influenced change. The article analyses the relation between road safety and the region’s socio-economic development. Data availability determined the time series applied. As we know from research, accidents fall in relation to the (demographic) density of improved roads. Accidents increase, however, in relation to the density of population and GDP per capita. These relations take the opposite direction if the (demographic) fatality rate or accident severity rate (fatalities per 100 accidents) is the dependent variable. Socio-economic losses were estimated using Statistics Poland data. To value the unit costs of road accidents, the PANDORA method was used. The analysis helped to group the voivodships for their highest and lowest socio-economic costs of road accidents with a special focus on the unit costs of road deaths. The originality of the research is related to the updated voivodship level research.

PL

W artykule podjęta została problematyka bezpieczeństwa ruchu drogowego (brd). Zmniejszenie liczby ofiar rannych i śmiertelnych w wypadkach drogowych wpisuje się w cel Agendy 2030 na rzecz zrównoważonego rozwoju. Celem prac badawczych była ocena przyczyn wypadków drogowych w podziale na województwa. Analiza była prowadzona w kontekście zróżnicowania rozwoju społeczno-gospodarczego, który determinuje koszty jednostkowe ofiar śmiertelnych i rannych w poszczególnych województwach. W opracowaniu zawarta została analiza opisowa, dzięki której ukazana została dynamika zmian w latach 2014-2021 w województwach oraz przedstawione zostały zmiany względem różnych czynników. W artykule przeprowadzona została analiza zależności brd od rozwoju społeczno-gospodarczego województw. Szereg czasowy determinowany był dostępnością danych. Z badań wynika, że wraz z gęstością (demograficzną) dróg o ulepszonej nawierzchni spada liczba wypadków. Natomiast wraz z gęstością zaludnienia i PKB na mieszkańca liczba wypadków rośnie. Zależności mają odwrotny kierunek, jeżeli za zmienną zależną przyjęty został wskaźnik (demo-graficzny) śmiertelności lub wskaźnik ciężkości wypadków (ofiar śmiertelnych na 100 wypadków). Analizowane w artykule straty społeczno-ekonomiczne, należące do pośrednich skutków wypadków drogowych i oparte na kosztach utraconej produkcji w wyniku przedwczesnej śmierci albo niezdolności do pracy osób rannych z powodu wypadku, zostały oszacowane na podstawie danych GUS. W wycenie kosztów jednostkowych zdarzeń drogowych skorzystano z metody PANDORA. Analiza pozwoliła na pogrupowanie województw z punktu widzenia generowania najwyższych i najniższych kosztów społeczno-ekonomicznych wypadków drogowych ze zwróceniem szczególnej uwagi na koszty jednostkowe ofiar śmiertelnych. Oryginalność wyników badań odnosi się uaktualnienia badań na poziomie województw.

5

Road traffic safety: a case study of the Pila poviat in Poland

Gorzelanczyk Piotr, Huk Aleksander

Zeszyty Naukowe. Transport / Politechnika Śląska

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2022

|

z. 114

31--42

EN

Every year, many road accidents occur on Polish roads, in which many people lose their lives and health. Therefore, an attempt was made to analyze road accidents in the Piła poviat. The source of the analysis were the authors' observations and statistical data. This study was conducted on a sample of 250 inhabitants. Hence, a questionnaire was used. Most people, more than half, about 56%, travel by car because it is a more convenient and faster means of transport. While 35% of respondents stated that they feel relatively safe on the roads. A majority, 65%, of the respondents did not participate in a road accident. Further, 60% of the respondents replied that there were many accidents in the Piła poviat, and only 11% answered that there were not many accidents. According to the respondents, the biggest cause of the accidents is alcohol, inattention of drivers and haste. Despite the information, advertisements, scale of these accidents, and opinions of family and friends, people still drive under the influence of alcohol. Year by year, the number of accidents on the roads of the Piła poviat is low, but still considerably high. There is no best way to stop this from happening. In Piła itself, circular intersections have been introduced to improve safety, such an operation is one of the methods for smoother traffic. Additionally, in residential areas, there are more speed bumps to reduce the speed of vehicles. The conclusions obtained in this article can be successfully implemented, not only in other cities in Poland but also in Europe as well.

6

The costs of road accidents in Poland

Krupińska Agnieszka

Transport Samochodowy

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2022

|

z. 1

28--31

EN

The article describes the problem of road accidents in statistical terms. The costs of road accidents were presented in a measurable and non-measurable context. Total and unit costs have been discussed.

PL

W artykule scharakteryzowano problem wypadków drogowych w ujęciu statystycznym. Przedstawiono koszty wypadków drogowych, w kontekście wymiernym i niewymiernym. Omówiono koszty całkowite oraz jednostkowe.

7

Road safety and the causes of road accidents in Poland

Gorzelanczyk Piotr, Jurkovič Martin, Skibińska Justyna, Kalina Tomáš

Transport Problems

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2022

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T. 17, z. 3

17--30

EN

The number of road traffic accidents in the world has been increasing. This is mainly related to the constant increase in road traffic. The aim of this article is to examine the causes of road accidents in Poland in terms of road traffic safety. For this purpose, road incidents that occurred in Poland were analysed. In order to verify the presented statistical data on the state of safety in Poland, a survey was carried out to indicate the factors that most often cause traffic accidents. Possibilities for increasing the efficiency of traffic safety and an evaluation of the level of safety in vehicles were also part of the survey. The results showed that the state of RS, in the opinion of the respondents, is poor. The respondents correctly indicated the most frequent causes of road accidents, which confirms their knowledge in the field of road safety. The survey also showed that the activities of the police nd programmes for increasing safety need improvement. According to the respondents, the actions that should be taken to improve safety are, first of all, the improvement of the technical condition of roads and the modernisation of road infrastructure. In addition, the survey showed that most men are car drivers, while women primarily travel on foot; the results also showed that the knowledge of RS is better among women.

8

Transport safety in road traffic - the condition and preventive measures as assessed by the respondents

Sroka Mariusz

System Safety : Human - Technical Facility - Environment

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2022

|

Vol. 4, nr 1

67-75

EN

The article presents basic definitions related to road accidents and types of tests carried out in the field of road accidents. The effects of road accidents on participants, drivers as well as social and direct costs of road accidents were discussed. The correct conduct of people involved in a road accident (incident) was presented. In the research part, the most common causes of accidents in Poland were analysed. Particular attention was paid to the participation in accidents of participants under the influence of alcohol. The article ends with a discussion on the presented research results and the resulting conclusions as well as a proposal for preventive actions to reduce the number of road accidents.

9

Wyniki symulacji biomechanicznych opracowanych za pomocą programów V-SIM i PC-Crash

Kędzierski Mirosław

Paragraf na Drodze

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2022

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Nr 2

91--102

PL

W niniejszym opracowaniu przedstawiono wyniki symulacji biomechanicznych, uzyskanych za pomocą programu V-SIM i PC-Crash. W opracowanych przykładach przyjęto jednakowe główne parametry symulacji oraz wykorzystano uniwersalne i rzeczywiste sylwetki nadwozi pojazdów. Porównania dokonano na podstawie przykładów o różnym stopniu złożoności.

EN

The article presents preliminary results of biomechanical simulations carried out using V-SIM and PC-Crash software packages. In both environments similar simulation parameters were adopted. Both universal and real vehicle body shapes were used. The comparison between the two software packages was done based on examples of different levels of complexity.

10

Infrastruktura drogowa czy pojazd - przyczyny wypadków drogowych w świadomości kierowców

Hadryś Damian

Magazyn Autostrady

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2022

|

Nr 2

30--34

PL

W niniejszym artykule scharakteryzowano krótko elementy systemu człowiek - pojazd - droga. Ponadto przedstawiono wyniki badań dotyczących świadomości osób kierujących pojazdami na temat ważności zagadnień wpływających na bezpieczeństwo ruchu drogowego. Badania miały charakter ankietowy, a ich celem było określenie stopnia świadomości kierujących pojazdami dotyczącej bezpieczeństwa ruchu drogowego w kontekście przyczyn wypadków drogowych i powiązania ich ze stanem technicznym pojazdu oraz stanem infrastruktury drogowej.

EN

In this article, the elements of a system comprising of a human being, vehicle, and road are briefly characterised. In addition, the results of research on the awareness of vehicle drivers of the importance of issues affecting road safety are presented. The research was carried out in the form of a questionnaire, and its aim was to determine the level of awareness of vehicle drivers of road safety in the context of the causes of road accidents and linking them with the technical condition of the vehicle and the state of road infrastructure.

11

Safety in road traffic — selected aspects of safety on Polish roads

Pieniak-Lendzion Krystyna, Stefaniak Renata, Kuziemska Beata

Gospodarka Materiałowa i Logistyka

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2022

|

nr 12

2--9

EN

The article presents the subject matter of safety in road traffic in Poland in the aspects selected by the authors. The research objective of the study was to identify, analyse and evaluate road safety in Poland. A review of the literature, i.e. books and scientific articles, as well as analysis of statistical data from the Polish Border Guard Headquarters in Warsaw, the National Police Headquarters in Warsaw and the Central Statistical Office were used to examine the problem matter. The status of road safety depends on numerous factors: the article analyses road accidents that occurred in specific months, days of the week and times of the day and considers alcohol intoxication of road users. The authors emphasize that one of the most essential problems that Poland faces today is low level of road safety. This may be for two reasons. First of all, there is an increase in the number of passenger cars, trucks, and tractor units. Secondly, the pace of road infrastructure improvement is insufficient.

PL

W artykule zaprezentowano tematykę bezpieczeństwa w ruchu drogowym w Polsce w wybranych przez autorów aspektach. Celem badawczym opracowania była identyfikacja, analiza i ocena bezpieczeństwa drogowego w Polsce. Do poznania problematyki zastosowano przegląd literatury, tj. pozycji zwartych oraz artykułów naukowych, analizę danych statystycznych pochodzących z Komendy Głównej Straży Granicznej w Warszawie, Komendy Głównej Policji w Warszawie oraz Głównego Urzędu Statystycznego. Stan bezpieczeństwa ruchu drogowego uwarunkowany jest wieloma czynnikami, zaś w artykule dokonano analizy wypadków drogowych, które miały miejsce w określonych miesiącach, dniach tygodnia i określonych porach doby oraz wzięto pod uwagę nietrzeźwość użytkowników dróg. Autorzy podkreślają, że jednym z ważniejszych problemów, jakie dotykają dziś Polskę, jest ciągle niski poziom bezpieczeństwa ruchu drogowego. Może to wynikać z dwóch powodów. Pierwszym jest wzrost liczby pojazdów osobowych i ciężarowych oraz ciągników siodłowych. Drugi to zbyt wolna poprawa infrastruktury drogowej.

12

Road traffic safety analysis on the example of selected national roads in the Lubelskie Voivodeship

Stefaniak Renata

Scientific Journal of the Military University of Land Forces

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2021

|

Vol. 53, No. 3(201)

572--584

EN

The article shows the essence of road safety in the Lubelskie Voivodeship on the example of two longest and most dangerous No. 19 and 74 national roads running through the voivodeship. The article aims to diagnose the current state of road safety in the Lubelskie Voivodeship and identify opportunities for its improvement. The statistical data of the Central Statistical Office in Lublin, annual reports on road accidents of the Police Headquarters in Warsaw, reports of the National Road Safety Council, and documents of the General Directorate for National Roads and Motorways Branch in Lublin were used to analyze the safety. The analysis of the statistical documents allowed the conclusion that ten national roads run through the Lubelskie Voivodeship. Roads No. 9, 17, and 74 are the longest ones. However, on a national scale, roads No. 19 and 74 are of great importance to road safety. It has been observed that the number of road accidents in the Lubelskie Voivodeship is decreasing year by year; thus, the number of accident victims is also falling. The national road No. 19 remains the most dangerous. Passenger car drivers most frequently caused road accidents since they did not adopt the speed to road conditions or obey the right of way. The Provincial Road Safety Improvement Program in Lublin assumed a significant reduction in the number of victims killed and injured on the roads. Unfortunately, after analyzing the statistical data over the years, it can be stated that even though the assumed goal was not achieved, the accident victim rate improved.

PL

W artykule ukazano istotę bezpieczeństwa w ruchu drogowym w województwie lubelskim na przykładzie dwóch z najdłuższych oraz najbardziej niebezpiecznych dróg krajowych o numerach 19 i 74, które przebiegają przez wymienione województwo. Celem artykułu jest diagnoza aktualnego stanu bezpieczeństwa w ruchu drogowym w województwie lubelskim oraz określenie szans poprawy tego bezpieczeństwa. Do analizy bezpieczeństwa wykorzystano dane statystyczne Głównego Urzędu Statystycznego w Lublinie, Raporty roczne o wypadkach drogowych Komendy Głównej Policji w Warszawie, Raporty Krajowej Rady Bezpieczeństwa Ruchu Drogowego oraz dokumenty Generalnej Dyrekcji Dróg Krajowych i Autostrad Oddział w Lublinie. Po przeprowadzeniu analizy dokumentów statystycznych, można stwierdzić, że przez województwo lubelskie przebiega dziesięć dróg o zasięgu krajowym. Najdłuższymi drogami są te o numerach 19, 17 i 74. Jednak w skali kraju duże znaczenie jeśli chodzi o bezpieczeństwo w ruchu drogowym mają poddane analizie drogi 19 i 74. Zaobserwowano, że w województwie lubelskim liczba wypadków drogowych z roku na rok spada, zatem liczba ofiar wypadków również ulega zmniejszeniu. Najbardziej niebezpieczną pozostaje droga krajowa 19. Wypadki drogowe najczęściej spowodowane były przez kierujących samochodami osobowymi, poprzez niedostosowanie prędkości do warunków panujących na drodze oraz nieprzestrzeganie pierwszeństwa przejazdu. W Wojewódzkim Programie Poprawy Bezpieczeństwa Ruchu Drogowego w Lublinie zakładano znaczne obniżenie liczby ofiar zabitych i rannych na drogach, niestety po analizie danych statystycznych z przestrzeni lat stwierdzić można, że nie udało się osiągnąć założonego celu, jednak wskaźnik ofiar wypadku uległ poprawie.

13

Rozpoznawanie pieszych i przejść - możliwości poprawy zauważania

Unarski Jan

Paragraf na Drodze

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2021

|

Nr 3

35--53

PL

W związku ze zmianami w ustawie Prawo o ruchu drogowym i rozszerzeniem ochrony pieszych o nadanie im pierwszeństwa już w czasie wchodzenia na przejście, w artykule przedstawiono aktualne problemy związane z koniecznością dostatecznie wczesnego zauważenia osób w strefie przejścia. Problemy te potęgują się po zmroku, dlatego autor podaje konkretne propozycje zwiększenia odległości zauważenia przejść dla pieszych i osób znajdujących się na nich oraz na nie wchodzących, kierując się własnym doświadczeniem z zakresu rozpoznawania przeszkód.

EN

In view of the changes in the Act on Road Traffic and the extension of protection for pedestrians at crossings to include the right of way of pedestrians entering a crossing, the article presents current problems related to the need to perceive people in the crossing zone early enough. As these problems worsen after dark, the author, guided by his own experience in the field of obstacle recognition, offers specific proposals to increase the sight distance of pedestrian crossings and people at them.

14

Analysis of the causes and effects of cyclist-pedestrian accidents in biggest Polish cities

Bauer Marcin, Okraszewska Romanika, Richter Matthias

Archives of Transport

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2021

|

Vol. 58, iss. 2

115--135

EN

Traffic incidents between pedestrians and cyclists result in an incomparably smaller number of victims (injured and killed) than accidents between unprotected traffic participants and other vehicles. However, such incidents cannot be underestimated, as in most cases they take place on elements of infrastructure designed for pedestrians and cyclists, and thus negatively affect the sense of safety of users in places where they should not only feel safe but also comfortable. This paper presents an analysis of such traffic incidents, aimed at recognizing the share of pedestrians and cyclists as perpetrators and also victims of accidents. Three research hypotheses were examined: that the type of infrastructure and also light and weather conditions influences the structure of perpetrators and victims, that the proportion of accidents between pedestrians and cyclists caused by pedestrians is increasing, and that the proportion of victims of accidents between pedestrians and cyclists in the pedestrian group is decreasing. Analyses were performed based on the number of traffic incidents involving cyclists and pedestrians in the six largest Polish cities, registered in the Police Accident and Collision Records System. A total of 1,702 incidents involving 1,034 injured and killed people in years 2007-2018 were considered. Each traffic incident was considered individually, taking into account changes in perpetrator and victim proportions depending on the type and purpose of the infrastructure and external conditions, as well as variability of these proportions over subsequent years. The tools of mathematical statistics were used, including – among others - significance tests for independent proportions and Chisquared test for trend. On the basis of the conducted statistical analyses, all research hypothesis were proved. It also confirmed that although the proportions are changing, there are still much more traffic incidents are caused by cyclists, but more victims are in group of pedestrians. The results of the research confirm the need to take action to develop effective mechanisms of mutual interaction between pedestrians and cyclists. Especially in view of the growing bicycle traffic in Polish cities.

15

Nonhomogeneus generalisations of poisson process in the modeling of random processes related to road accident

Grabski Franciszek

Scientific Journal of Polish Naval Academy

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2020

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R. 61 nr 3 (222)

29--42

EN

The stochastic processes theory provides concepts, and theorems, which allow to build the probabilistic models concerning accidents. “Counting process” can be applied for modelling the number of road, sea, and railway accidents in the given time intervals. A crucial role in construction of the models plays a Poisson process and its generalizations. The nonhomogeneous Poisson process, and the corresponding nonhomogeneous compound Poisson process are applied for modelling the road accidents number, and number of people injured and killed in Polish roads. To estimate model parameters were used data coming from the annual reports of the Polish police.

PL

W pracy przedstawiono niektóre uogólnienia procesu Poissona i ich własności. Skupiono się na dwóch uogólnieniach – niejednorodnym procesie Poissona i niejednorodnym złożonym procesie Poissona. Niejednorodny proces Poissona pozwala na skonstruowanie modelu probabilistycznego, opisującego liczbę różnych rodzajów wypadków. Niejednorodny złożony proces Poissona pozwala matematycznie opisywać konsekwencje tych wypadków. Przedstawione tu wyniki teoretyczne dają możliwość przewidywania liczby wypadków i ich konsekwencji. Estymacja parametrów modelu została wykonana na podstawie danych zamieszczonych w rocznych raportach Policji.

16

Przyspieszenia i opóźnienia wzdłużne oraz przyspieszenia poprzeczne w normalnym ruchu drogowym

Reza Adam

Paragraf na Drodze

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2020

|

Nr 1

51--67

PL

Przyspieszenia, opóźnienia hamowania i przyspieszenia poprzeczne odgrywają ważną rolę w opiniowaniu wypadków drogowych. Cytowane w artykule wyniki badań pozwalają na określenie przedziałów różnych parametrów dla normalnego, typowego udziału w ruchu drogowym przy wykonywaniu różnych manewrów. Możliwe jest uwzględnienie płci i wieku kierowcy.

EN

The knowledge of acceleration, braking deceleration and transverse acceleration play an important role in road accident expert reporting. The test results quoted in the paper enable the identification of the ranges of various parameters of various driving manoeuvres in ordinary typical participation in road traffic, including the driver’s sex and age.

17

Określanie prędkości pojazdów na podstawie materiału wideo. Cz. 2

Kosendiak Tomasz

Paragraf na Drodze

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2020

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Nr 1

41--50

PL

Filmy wykonywane przy użyciu automatycznych, stacjonarnych i mobilnych rejestratorów coraz częściej są materiałem służącym do rekonstrukcji wypadku drogowego. Celem tego artykułu jest przedstawienie sposobu postępowania dla ustalenia prędkości pojazdu wymijającego się z pojazdem wyposażonym w kamerę wideo.

EN

Films made with automatic, stationary and mobile recorders are increasingly often used in road accident reconstruction. The aim of this article is to show how to accurately determine the speed of an oncoming vehicle equipped with a video recorder.

18

Obniżenie odszkodowania z uwagi na przyczynienie się do powstania szkody. Glosa do wyroku Sądu Okręgowego w Sieradzu z dnia 5 lutego 2020 r., sygn. I Ca 6/20

Kurzępa Bolesław

Paragraf na Drodze

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2020

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Nr 4

7--18

PL

Przedmiotem glosy jest rozstrzygnięcie Sądu Okręgowego w Sieradzu dotyczące problematyki obniżenia odszkodowania na podstawie art. 362 k.c. należnego poszkodowanemu w następstwie kolizji drogowej. Autor omawia okoliczności decydujące o takiej decyzji, między innymi takie, jak porównanie stopnia winy stron, niemożność przypisania winy poszkodowanemu, szczególne okoliczności danego przypadku, specyficzne cechy osobiste.

EN

The commentary concerns the ruling of the Regional Court in Sieradz on the reduction, pursuant Art. 362 Civil Code, of the compensation payable to the person injured in a traffic collision. The author discusses the circumstances leading to such a decision including a comparison of the extent of guilt of the parties, inability to attribute blame to the injured party, specific circumstances of the case, particular personal characteristics.

19

Crash data reporting systems in Fourteen Arab countries: challenges and improvement

Abounoas Zahira, Raphael Wassim, Badr Yarob, Faddoul Rafic, Guillaume Anne

Archives of Transport

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2020

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Vol. 56, iss. 4

73--88

EN

Traffic crash fatalities and serious injuries still represent a big burden for most Arab countries because the actual policies, strategies, and interventions are based on poorly collected data. Through this paper, we assessed the crash data reporting systems in Fourteen Arab countries via a survey conducted to identify the fundamental dysfunctions at the management and data collection levels. Then, to address some of the dataset problems, we had applied data mining technics to select a minimum of variables (crash, vehicle, and road user) that should be collected for a better understanding of crash circumstances. For this raison, three methods of selection (correlation, information gain, and gain ratio) and seven classifiers (naive Bayes, nearest neighbour, random forest, random tree, J48, reduced error pruning tree, and bagging) were tested and compared to identify the variables that affect significantly the crashes severity. Decision trees family of classifiers showed the best performance based on the analysis of the area under the curve. The explanatory variables obtained from the data mining process were combined with other descriptive variables to maintain traceability. As a result, we produced hybrid lists of variables for the crash, vehicle, and road user, each contains 25 variables. Finally, in order to propose a cost-effective solution to switch from manual to electronic data collection, we got inspired by a tool used to track animals to create and customize a unified e-form for handheld devices, in order to ensure easy entering of the harmonized data for the entire region based on our selected lists of variables. The tool verified the countries requirements especially by enabling data collection and transfer with and without the internet, and by allowing data analysis thought its built-in Geographic Information System (GIS) capabilities.

20

Experimental and modelling research on coach passengers’ safety in frontal impacts

Jamroziak Krzysztof, Joszko Kamil, Wolanski Wojciech, Gzik Marek, Burkacki Michał, Suchon Slawomir, Szarek Arkadiusz, Zielonka Karol

Archives of Civil and Mechanical Engineering

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2020

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Vol. 20, no. 3

468--480

EN

Road traffic accidents involving coaches do not happen very often, but they are very dangerous because they affect a large number of passengers. Coaches (or intercity buses) are not equipped with safety belt harnesses. Valid regulations do not impose any obligation on coach manufacturers to provide intercity buses with either two- or three-point safety belts. This fact may result from the unawareness of risks and injuries that might befall the passengers with no safety belts during accidents. That is the reason why this work aims to compare the aftermath of coach accidents with no safety belts and the ones with safety belts. A detailed aim of this research is to analyse the results of dynamic loads during a frontal impact exerted on coach passengers travelling with and without (two- and three-point) safety belts. This objective was achieved by performing experimental studies and modelling which focused on the process of dynamic load transfer on the human body during a traffic accident. The research was conducted parallel on an adult and a child. The equivalent of a 50th percentile male was a hybrid III dummy (M50), whereas a child at the age of about 10 was represented by a P10 dummy. A numerical model was generated and verified in experimental testing in the scope of kinematics. Also, the comparison of the recorded courses of forces, acceleration, and moments was conducted. The results obtained from the tests were analyzed regarding the injury criteria for head, neck, and thorax. It was observed that both for the two-point safety system and the lack of safety belts, there were high values of acceleration recorded in the centre of gravity of the head. On the basis of the investigations conducted, it was ascertained that only a three-point safety belt system ensures the satisfaction of all injury criteria within admissible standards both in the case of criteria defined in the rules no. 80 and the rules no. 94 determined by the United Nations Economic Commission for Europe. It is the three-point safety belt system which should be obligatory in all intercity buses.