Methodology for the study of the influence of e-scooter vibrations on human health and comfort

Cano-Moreno, Juan David; Marcos, Manuel Islán; Haro, Fernando Blaya; D’Amato, Roberto; Juanes, Juan A.; Heras, Enrique Soriano

doi:10.1145/3362789.3362906

Cited by 12 publications

(17 citation statements)

References 8 publications

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“…Besides the conflict with other transportation modes, pavement conditions on sidewalks are also closely related to e-scooter safety. Cano-Moreno et al ( 17 ) identified that e-scooter vibrations primarily affect the human health and comfort of e-scooter riders. Strong vibrations are expected when riding e-scooters on sidewalks with poor pavements.…”

Section: Literature Reviewmentioning

confidence: 99%

Use of Mobile Sensing Data for Assessing Vibration Impact of E-Scooters with Different Wheel Sizes

Yang

Yan

2023

Transportation Research Record: Journal of the Transportation R

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With the growing demand of shared electric scooters (e-scooters) for short-distance trips in urban areas, their safety issues have received significant attention from various stakeholders. In general, e-scooter riders encounter more vibrations compared with users of other transportation modes such as bicycles that typically have larger wheels and better suspension systems. Such riding experience may lead to discomfort, affect riders’ health, and increase riding risk. Intuitively, increasing e-scooters’ wheel sizes may provide safer and more comfortable riding experience. However, this assumption has not been well tested. The main objective of this paper is to curtail this gap by quantitatively assessing the impacts riders experienced, through the use mobile sensing data. Specifically, a mobile sensing platform was deployed on e-scooters with different wheel sizes to continuously measure encountered vibrations. Then, the instrumented e-scooters were ridden on routes with different pavement materials. Finally, the collected data were further processed and analyzed to evaluate various riding issues in each riding scenario. The comparative results suggest that e-scooters with larger wheels can efficiently alleviate vibrations during a ride compared with those with smaller wheels. To improve riding experience and safety, it is beneficial to use larger-wheel e-scooters, given other similar riding conditions.

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Section: Literature Reviewmentioning

confidence: 99%

Use of Mobile Sensing Data for Assessing Vibration Impact of E-Scooters with Different Wheel Sizes

Yang

Yan

2023

Transportation Research Record: Journal of the Transportation R

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“…The research presented in this paper is based on the methodology developed by Cano-Moreno et al [27]. This methodology will be applied to a specific e-scooter layout, varying the stiffness of the suspension elements and considering the road irregularities.…”

Section: Methodsmentioning

confidence: 99%

“…A multibody model has been developed for running dynamic simulations, based on the proposal of Cano-Moreno et al [27]. This model has been implemented in Simscape, a Simulink library (in the Matlab 2018B version).…”

Section: Dynamic Modelmentioning

confidence: 99%

E-scooter Vibration Impact on Driver Comfort and Health

Cano-Moreno

Islán

Blaya

et al. 2021

J. Vib. Eng. Technol.

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Background Micro-mobility provides a solution for last mile problem and e-scooter sharing systems are one of the most heavily adopted micro-mobility services. The increasing usages of e-scooters make it necessary to analyse the possible effects of the vibrations transmitted to the drivers.Purpose This research has studied for the first time the e-scooter vibrations effects on drivers comfort and health for the actual range of circulation speeds, that can exceed 25km/h. Methods Based on experimental measured stiffness of two different e-scooter wheels and Multibody dynamic simulations, several statistical models have been obtained following the standard UNE2631. ResultsThe results show that for a common e-scooter and a road profile with a very good-good roughness level, a velocity of 16 km/h starts to be uncomfortable and for 23km/h could be harmful for health, for short trip durations. Derived from the statistical models, a new way of measuring the roughness has been proposed and that will be one of the future works to adjust and validate it.Conclusion E-scooter suspension systems (front suspension and wheels) must be improved under human comfort and health point of view. Furthermore, results suggest the necessity of study the vibrations effects on real e-scooters due to the maximum speed they can reach is greater than 25km/h.

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“…A research by Koontz et al [7] demonstrated that, in general, lighter and less stiff vehicle structures feature higher maneuverability and comfort for the user. Specific investigations on escooter motion have also been performed by Cano-Moreno et al [2,8] through simulations, determining that the use of less stiff shock absorbers and wheels could ameliorate the user experience from both health and comfort standpoints (the speed being the same). Nevertheless, the trip was simulated by random vibrations as prescribed within the ISO 8608:2016 2 standard, and did not investigated which types of obstacles in an urban environment could produce such oscillations; analogously, no information is available regarding the comfort experienced by the user when shock absorbers are excluded from the vehicle system.…”

Section: Introductionmentioning

confidence: 99%

Comfort assessment for electric kick scooter decks

Michelangelo-Gulino

Vichi

Zonfrillo

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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The LEONARDO project, funded under the Horizon 2020 framework, is aimed at developing a new concept of micromobility electric vehicle combining the benefits of an e-kick scooter (rapid learning curve, stability) and those of a monowheel (greater agility). The goal is the development of a vehicle able to increase the consensus towards electric micromobility for enabling a relevant spread of this green transport solution, thanks to specific expedients like: (a) the possibility of exploiting an auxiliary battery pack to increase the path traveled by the vehicle; (b) a mass reduced to 10 kg, allowing to easily lift and move the vehicle to routinely encountered upper-level spaces (steps, the trunk of a vehicle, etc.). The weight reduction compared to similar vehicles necessarily involves the replacement or elimination of bulky components like suspension elements; for this reason, the deck must have intrinsic shock absorbing characteristics to maximize the rider comfort. The objective of the present work is the identification of a class of decks for e-kick scooters that best meets the user comfort needs in an urban environment. To this end, experiments have been performed replacing the aluminium deck of a commercially available electric scooter with decks of different materials; the comfort offered by each deck has been measured compatibly with the ISO 2631:1997 standard on a closed test circuit, in correspondence of six different obstacles that the rider may tackle in a typical urban scenario. The results of the study, read in a statistical key by regressive methods and analysis of variance, evidence highest compatibility with maximum comfort criteria for the 11.5 mm thick bamboo deck; namely, the test campaign evidences how the maximum comfort for the rider can be obtained with a deck having a stiffness similar to that of bamboo. In this context, the bamboo deck lacking of shock absorbers demonstrates superior performance compared to aluminium decks equipped with suspensions for the same application, with a mass saving of approximately 65%. Special care should however be paid to the forces the deck could sustain: moving from an aluminium to a bamboo deck which is 20 times less stiff, forces decrease of only 20%. Overall, these highlights represent a comprehensive set of elements to pilot the design of micromobility vehicles, from both standpoints of comfort and resistance.

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Methodology for the study of the influence of e-scooter vibrations on human health and comfort

Cited by 12 publications

References 8 publications

Use of Mobile Sensing Data for Assessing Vibration Impact of E-Scooters with Different Wheel Sizes

Use of Mobile Sensing Data for Assessing Vibration Impact of E-Scooters with Different Wheel Sizes

E-scooter Vibration Impact on Driver Comfort and Health

Comfort assessment for electric kick scooter decks

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