Micro-mobility use, such as electric scooters (e-scooters), offers convenience and environmental benefits (Christoforou et al., 2021; Vestri, 2021) and it has increased over the last five years following the introduction of shared e-scooter schemes in the United States in 2017 (Christoforou et al., 2021 ). Following the introduction of shared e-scooters there has been an observed increase in the number of people choosing to use personal devices (Haworth et al., 2021). E-scooters are typically used more for transport (Sanders et al., 2020), often replacing active travel modes than motor vehicle use (Sanders et al., 2020) although that is location-dependent (Wang et al., 2022). The use of shared and personal e-scooters is primarily associated with travel time and money savings, as well as the enjoyability of the transport mode (Christoforou et al., 2021 ). Perceived lack of safety has been shown to influence consumer acceptance (Kopplin et al., 2021). E-scooter riders have been shown to be at risk of trauma to the head and extremities (Bauer et al., 2020), although little is known about the events leading to trauma (e.g., fall as a result of rough terrain, collision with a vehicle). Protective equipment can reduce the risk of incidents (e.g., improving visibility of vulnerable road users) or lessen the risk of injury (e.g., helmets). Generally, little is known regarding the use of helmets and other protective equipment by e-scooter riders, except when injuries occur. Trauma studies have reported low ( 4.4%; Trivedi et al., 2019) to moderate (46%; Mitchell et al., 2019) use of helmets. While the majority of e-scooter presentations occur during evenings (Vemon et al., 2020), little is known about the use of reflective equipment by scooter riders. The aim of this paper is to explore factors that influence the use of protective equipment, including helmets and reflective equipment, by e-scooter riders. [From: Introduction]

The recent emergence of electric scooter (e-scooter) ride share companies has greatly increased the use of e-scooters in cities around the world. In this thesis, firstly, e-scooter injuries reported in the current literature as well as an overview of current e-scooter company policies, state laws, and local laws are reviewed. The most injured regions of the body were the head and extremities. These injuries are generally minor to moderate in severity and commonly include fractures and lacerations. A primary cause of e-scooter accidents is front wheel collisions with a vertical surface such as a curb or object, generically referred to as a "stopper." Therefore, various e-scooter-stopper crashes were simulated numerically across different impact speeds, approach angles, and stopper heights to characterize their influence on rider injury risk during falls. A finite element (FE) model of a standing Hybrid III anthropomorphic test device was used as the rider model after being calibrated against certification test data. The angle of approach was found to have the greatest effect on injury risk to the rider, and it was shown to be positively correlated with injury risk. Smaller approach angles were shown to cause the rider to land on their side, while larger approach angles caused the rider to land on their head and chest. Additionally, arm bracing was shown to reduce the risk of serious injury in two thirds of the impact scenarios. The majority of e-scooter rider fatalities (about 80%) are recorded in collisions between a car and an e-scooter. Therefore, crashes between an e-scooter and a sedan (FCR) and a sports utility vehicle (SUV) were simulated using finite element models. The vehicles impacted the e-scooter at a speed of 30 km/hr in a perpendicular collision and at 15 degrees towards the vehicle, to simulate a rider being struck by a turning vehicle. The risks of serious injury to the rider were low for the head, brain, and neck, but femur/tibia fractures were observed in all simulations. The primary cause of head and brain injuries was found to be the head-ground impact if such an impact occurred. / Master of Science / The recent emergence of electric scooter (e-scooter) ride share companies has greatly increased the use of e-scooters in cities around the world. In this thesis, firstly, e-scooter injuries reported in the current literature as well as an overview of current e-scooter company policies, state laws, and local laws are reviewed. The most injured regions of the body were the head and extremities. These injuries are generally minor to moderate in severity and commonly include fractures and lacerations. A primary cause of e-scooter accidents is front wheel collisions with a vertical surface such as a curb or object, generically referred to as a "stopper." Therefore, various e-scooter-stopper crashes were simulated numerically across different impact speeds, approach angles, and stopper heights to characterize their influence on rider injury risk during falls. A finite element (FE) model of a standing Hybrid III anthropomorphic test device was used as the rider model after being calibrated against certification test data. The angle of approach was found to have the greatest effect on injury risk to the rider, and it was shown to be positively correlated with injury risk. Smaller approach angles were shown to cause the rider to land on their side, while larger approach angles caused the rider to land on their head and chest. Additionally, arm bracing was shown to reduce the risk of serious injury in two thirds of the impact scenarios. The majority of e-scooter rider fatalities (about 80%) are recorded in collisions between a car and an e-scooter. Therefore, crashes between an e-scooter and a sedan (FCR) and a sports utility vehicle (SUV) were simulated using finite element models. The vehicles impacted the e-scooter at a speed of 30 km/hr in a perpendicular collision and at 15 degrees towards the vehicle, to simulate a rider being struck by a turning vehicle. The risks of serious injury to the rider were low for the head, brain, and neck, but femur/tibia fractures were observed in all simulations. The primary cause of head and brain injuries was found to be the head-ground impact if such an impact occurred.

Sedan etableringen 2017 har en drastisk ökning av elscootrar skett i Sverige och framförallt i Stockholms innerstad. Denna radikala förändring inom färdmedel har skakat om den rådande trafikmiljön. Olyckor och parkeringsproblematik har stått i fokus för medias rapportering kring fenomenet. Syftet med denna rapport är att undersöka hur företagen som utvecklar elscootrar arbetar med säkerhet för användarna och anpassar sin produktutveckling efter svenska lagar och trafikregler. Studien behandlar även hur man på ett säkert sätt kan integrera nya färdmedel i samhället. För att lägga en grund för arbetet har en litteraturstudie genomförts och en teoretisk referensram tagits fram. Informationsinsamlingen har skett genom kvalitativa semistrukturerade intervjuer med tre företag som utvecklar eller hanterar elscootrar, ansvarig för elscootrar på Stockholms Stad samt respondenter från Transportstyrelsen med regeringsuppdraget Att utreda behov av förenklade regler av eldrivna enpersonsfordon. Intervjuerna har transkriberats, kodats, delats upp i teman och analyserats. Idag är de flesta elscootrar som finns i Stockholm klassificerade som cyklar. Detta innebär utöver krav på bland annat broms och ringklocka att maxhastigheten ej får överstiga 20 km/h och motoreffekten max får vara 250 W. Flera aktörer ser en problematik i detta och en gemensam önskan hos alla respondenter är att hitta en klassificering som ger tydlighet för vad som gäller, reder ut oklarheter och främjar utvecklingen av färdmedlet. Resultatet av studien har visat att ett stort fokus ligger på säkerhet i utvecklingsprocessen och en stor del av arbetet med säkerheten sker i utvärderingsfasen. Utvecklingen sker inkrementellt för att ständigt förbättra säkerheten hos elscootrarna och förhindra att olyckor sker. Idag arbetar företag med en mer linjär process men för att hantera framtida utmaningar skulle en mer agil process kunna främja produktutvecklingen. Då att fenomenet med elscootrar fortfarande är nytt så är olycksstatistiken som finns ytterst begränsad. Den som finns pekar dock på att olycksgraden med elscootrar involverade inte är högre än för traditionella cyklar. Studien visar också att det sker en dialog mellan Stockholms Stad och de ledande scooter-företagen i Stockholm för att på ett säkert sätt integrera färdmedlet i stadstrafiken. / Since its establishment in 2017, there has been a dramatic increase of e-scooters in Sweden and especially in Stockholm city. This radical change in transport has shaken the current traffic environment. Accidents and parking problems have been the focus of media reporting of the phenomenon. The purpose of this report is to investigate how the companies that develop e-scooters work with safety for the users and adapt their product development to Swedish laws and traffic rules. The study also deals with how to safely integrate new means of transport into society. In order to lay a foundation, a literature study has been conducted and a theoretical frame of reference has been developed. Information was gathered through qualitative semi-structured interviews with three companies that develop e-scooters, responsible for e-scooters in Stockholms Stad and respondents from the Swedish Transport Agency with a government assignment to clarify the situation. The interviews have been transcribed, coded, subdivided into themes and analyzed. Today, most e-scooters in Stockholm are classified as bicycles. This means, in addition to requirements for brake and bell, that the speed must not exceed 20 km/h and the engine power must be no more than 250 W. Several affecting parties consider this classification problematic and a common wish among all interviewed respondents is to find a classification or approach to the e-scooters that gives clarity for which rules that applies, clarifies ambiguities and promotes future development of the e-scooters. The results of the study have shown that a large focus in the development process is on safety and a large part of the work to enhance safety takes place during the evaluation phase. The development is incremental in order to constantly improve the safety for the users of the e-scooters and prevent accidents from happening. Today, companies are working with a relatively linear development process, but in order to handle future challenges, a more agile work process could promote product development. Since the phenomenon of e-scooters is still new, the accident statistics are very limited. However, the statistics that exist point out that the accident rates with e-scooters involved is not higher than for traditional bicycles. The study also shows that there is a dialogue between Stockholms Stad and the leading scooter companies in Stockholm in order to safely integrate the means of transport into city traffic.

The subject of this thesis is to design an electric scooter targeted at innovative approach to the design of the technical, aesthetic , ergonomic and ecological requirements . The main objective is to devise a practical design and shape characteristic of the machine , which in itself will reflect the selected drive type . The scooter should be the ideal solution for the movement in urban centers, which will be practical with an attractive appearance of ecological vehicles . Its unusual solution to the problem of storage space in this category of motorcycle , scooter would have become a good alternative to conventional means of transport with a combustion engine

E-scooters are a rather new mode of transport. Nevertheless, in recent years lots of studies have been published. Replaced modes and consequential environmental impacts as well as specific injury pattern are important topics. Regarding shape, speed and usage, e-scooters are most similar to bikes. As a consequence, by law e-scooters use the same road space or infrastructure than bikes do. Concurrently, in recent years we experience a boom of cycling in cities and a significant expansion of the bike infrastructure. Requirements and frequency of usage on the bike infrastructure are growing in cities caused by increasingly diverse cyclists. At the same time, the bike infrastructure is subject new requirements and additional pressure due to the implementation of e-scooters. In Germany, allowing e-scooters on bike infrastructure can be seen as a paradigm shift since for the first time a motorized vehicle is allowed to use the infrastructure. On this background, interrelation between e-scooters and active mobility (walking and cycling) are very important for the future use of the infrastructure and the ongoing transformation of urban mobility. Hence, we use a multi-method approach to investigate these potential conflicts and draw conclusions for regulation as well as improvement in the system.

Objectives: Since their introduction in 2019, the use of e-scooters has become widespread in Germany. Concerns about road safety, especially pedestrian safety, have arisen as the popularity of micro-mobility has grown. In light of this context, the present study investigates which types of road infrastructure e-scooter riders use, with a focus on riding on the sidewalk, which is not permitted in Germany. We considered the following infrastructures: (1) off-road bike lane (+ sidewalk and road), (2) on-road bike lane (+ sidewalk and road), and (3) road (+ sidewalk). Methods: Observations at six sites (recording 738 e-scooter riders) and on-site surveys (involving responses from 129 e-scooter riders) were conducted in two German cities in August 2020 and September 2020. Results: Self-reported sidewalk riding was not found to be linked directly to a lack of rule knowledge, a preference for this type of infrastructure, or perceived safety. Observations indicated that using the sidewalk might be related to situational components, such as comfort or convenience, comprising up to 40% of instances of sidewalk riding. Conclusion: Considering the comfort and convenience factor of sites when building or improving cycling infrastructure can help keep e-scooter riders from riding on the sidewalk.

This master´s thesis deals with a design of an electric stroller. This alternative means of transport for a parent and a child was designed based on a design and technical analysis. This product allows independent and fast movement in the city. Using the product requires an introduction of a new arrangement of streets, with designated communications for micromobility. Modern technologies are used in the concept of the designed product. The advantage of the design concept is that the product can be used as a classic electric scooter.

The main aim of this thesis is the application of ideas to achieve innovation and modernization in the field of design of submersible personal watercraft. Another aim is to show the own creative activity and the ability to move an object from the field of functionality to the field of aesthetics, ergonomics and practicality at an affordable verified techniques, current manufacturing technologies and materials.

This diploma thesis deals with the design and realization of function pattern of off-road four-wheel vehicle for seniors. First part of the work consist of research of current commercial vehicles for the elderly, as well as small four-wheeled off-road vehicles and their individual design elements. In this part of the work were also dismantled the proposed legislation allowing legal movement of vehicles on public roads and seniors ergonomics. Another section dealt with the proposal of possible variants for solving the essential structural elements of the vehicle. The last major parts of the work deals with detail description of each selected construction elements of the vehicle. Functional pattern has been manufactured and tested. At the end of this work were published the results of testing of the vehicle and also were proposed possible changes of design.

No description available.