Abstract The article presents the general characteristics of road transport safety in Poland over years 2009-2019. key objective this study was to investigate main factors accidents Poland. Up till now, number has been analysed detail on basis data collisions from rear, side and frontal perspective. Moreover, article, statistics regarding perpetrators by gender age are summarized, as well dynamics aspects changes related new passenger vehicles trucks 2009-2019 indicated. As a result,...

A vehicle’s longitudinal acceleration is a parameter often used for determining vehicle motion dynamics. This can also be to evaluate driver behavior and passenger comfort analysis. The paper presents the results of tests city buses coaches recorded during rapid braking maneuvers. presented test demonstrate that significantly affected by road conditions surface type. In addition, values accelerations their regular operation. These were obtained on basis registration traffic parameters in...

The paper presents the results of research on assessment vibration comfort child seats in a passenger car. involved impact wheel unbalance size and frequency characteristics vibrations to which small is exposed - transported standard car seat placed back studies recorded acceleration floor, under seat, for various speeds. were analysed determine intensity generated by unbalanced wheel. Based obtained results, degree has been assessed.

The subject of the considerations presented in this article are experimental braking performance tests carried out on dry surfaces for three selected vehicle types: passenger vehicle, delivery truck and touristic bus. paper describes factors affecting performance. were repeatedly asphalt pavement using specialized testing equipment. deceleration was determined as a function time maximum values determined. Statistical analysis obtained results performed, mean standard deviation Based...

Abstract A vehicle’s longitudinal acceleration is one the parameters that characterize a motion dynamics and used, among others, to assess comfort of public bus passengers. Rapid braking performed by urban drivers can be deemed passengers as uncomfortable dangerous in some situations, especially for standing This paper presents an analysis bus’s recorded during extreme attempts. The experimental tests were conducted on dry wet asphalt concrete surfaces. test results allow statement lateral...

The driver's visual field as seen from their seat is one of the most fundamental prerequisites for road safety. However, there an area around vehicle that remains invisible to driver. It a so-called blind spot, i.e., which driver not able see through windscreen and side windows well in exterior interior rear-view mirrors. vision may be limited by components vehicle's holders other accessories mounted on or dashboard users. Blind spots can hinder performing manoeuvres cause collisions...

Abstract The development of electromobility in Poland and the whole world is an inevitable process. Every year, electric vehicles powered by renewable fuels become more popular. It should be noted that infrastructure for pursued environmental policy with related subsidies purchase are important aspect encouraging this type vehicle. article presents a comparison popularity energy sources other European Union countries, as well characteristics most common alternative fuels. Its main objective...

Największym zagrożeniem dla bezpieczeństwa życia i zdrowia dziecka umieszczonego w foteliku jest dalszym ciągu źle dobrany zamontowany fotelik pojeździe. Foteliki są uważane za główny sposób na zmniejszenie ryzyka obrażeń podczas zdarzenia drogowego. Mimo to, większość rodziców używa nieprawidłowo zainstalowanych fotelików. Nieprawidłowo dobrane zamontowane foteliki mogą stwarzać ryzyko u dzieci razie wypadku. Celem artykułu poprawa przewożonych fotelikach przez identyfikację określenie...

Abstract The paper presents the analysis of lateral acceleration based on a vehicle traveling in circle with double lane change. maneuvers driving and changes were chosen not by accident. Tests carried out popular brand passenger car wet dry surfaces. is equipped high-class electronic equipment that records motion parameters such as acceleration, longitudinal speed others. In study, results statistically analyzed tabulated order to compare influence comfort travellers.

Abstract The paper aims to analyse the longitudinal acceleration of a tourist coach on various road pavements. As part experimental research, braking tests were carried out at speed 30 km/h and km/h. four types pavement, i.e. dry wet asphalt concrete. article describes impact conditions performance selected pavement types. To increase reliability test results, ten for each tested pavement. Based graphs decelerations accelerations during accelerating vehicle as function time. This allowed...

Abstract Vehicle acceleration can be used to control vehicle traffic, evaluate driver behaviour and analyse accident causes, among others. The purpose of the testing was designate longitudinal in limit conditions during test vehicle’s braking on various surfaces. paper presents selected results motion parameters a Ford Transit rapid braking. included measurements speed sections with asphalt concrete runs were conducted dry, wet icy surface. determination impact road surface’s condition...

Unfortunately, nowadays, choosing the right child seat is a real problem, especially for new parents. When seat, parents have to consider many factors. These include method of mounting mass compatibility with pram and information about crash tests approvals. The main purpose article draw attention problem safe purchasing preferences or legal guardians who decide buy seat. For this purpose, survey was conducted on group 950 people children. research has shown that parameter influencing choice...

It is not enough to transport a child in vehicle seat make it safe. Even the best does protect if incorrectly fitted or installed vehicle. Unfortunately, choosing right for your so easy. A number of factors should be taken into account, such as type attachment, its mass, fit well child's dimensions. In addition, before buying seat, you check whether feels comfortable it, fits freely belts holding do interfere. The main purpose article was purchasing preferences surveyed group people terms...

Abstract Lateral acceleration is one of the parameters used to assess a driver’s behaviour and comfort urban bus passengers. Because its purpose, city vehicle designed transport large numbers people over relatively short distances. The specific driving conditions require constant stopping accelerating. values collected in selected road manoeuvre tests or performance conducted real traffic will determine lateral movement dynamics. This paper presents results bus, obtained during experimental...

Abstract This article presents the values of lateral acceleration during controlled slip for a passenger vehicle and city bus. Skidding is one most dangerous road situations that can occur while driving vehicle. They happen to anyone, without exception whether someone has experience or young driver. The accelerations skidding presented in showed higher refers drawing attention acting on slip. It depends system driver he will be able make correct choice situation. Therefore, improving...

Abstract Loads acting on transported cargo are the result of inertia forces associated with movement motor vehicle. Longitudinal goods by a vehicle may from accelerating or braking car. The maximum values acceleration important in terms selection methods and tools used to secure goods. paper presents results experimental tests harsh tractor unit semi-trailer. experiment was divided into three measurement series. Two them were carried out asphalt pavement, while last one concrete pavement....

Abstract The measurement of car acceleration in time can be used to assess driving styles and safety behaviours drivers. values lateral the an indication driver’s aggressive style tendency for risky behaviour. If is too high, it may affect car’s stability potentially cause roll over. paper outlines results analysis a Ford Transit circle attempt change two lanes. tests were conducted practice areas. Measurements taken test vehicle circles with maximum attainable velocity, changing lanes...