Simulation of Bicycle-Riding Smoothness by Bicycle Motion Analysis Model

Chou, Chung‐Che; Lee, Wan-Ju; Chen, Ai-Chin; Wang, Ren-Zuo; Tseng, I-Chun; Lee, Cheng-Chun

doi:10.1061/(asce)te.1943-5436.0000802

Cited by 11 publications

(6 citation statements)

References 6 publications

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“…These health problems include fatigue, headaches, sleep disturbances, irritability, forgetfulness and impotence [43], carpal tunnel syndrome and tendinitis, hand-arm vibration syndrome, back musculoskeletal disorders [44,45], hand and arm blood flow issues (numbness and white fingers), knee pain, and back pain [46]. Accelerometers can be used to measure vertical acceleration by cyclists [47][48][49][50][51][52][53][54][55][56][57][58][59]. Unpleasant vibrations can be influenced by the condition of the pavement surface, which is a factor included in several bicycle stress level indicators that have been proposed in the literature [4,9,12].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Noise, Vibration, Cycle Paths, and Period of Day on Stress Experienced by Cyclists

et al. 2018

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Urban and transport planners need to assess the stressful conditions experienced by cyclists, considering that highly stressful situations can discourage people from cycling as a transport mode. Therefore, this study has two objectives: (1) to present a method for monitoring stress and other environmental factors along cycling routes using smart sensors; and (2) to analyze the influence of noise, vibration, presence of cycle paths, and the period of the day on stress experienced by cyclists. Data were collected in the city of São Carlos, Brazil, using stress and noise sensors, accelerometers, and Global Positioning System (GPS). Primarily, heat maps generated from the data made it possible to identify critical points of stress along the routes. In addition, the results of a logistic regression model were analyzed to identify the influence of the studied variables on stress. Although high levels of noise increased the odds of experiencing stress by 4%, very uncomfortable vibrations increased the odds by 14%, and the presence of cycle paths reduced the odds by 8%, an analysis of p-values and odds ratio confidence intervals shows, with a 95% confidence level, that only the period of the day influenced stress, as confirmed by the data. In this case, the odds of having stress increased by 24% in the afternoon rush hour compared to the morning rush hour.

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Section: Introductionmentioning

confidence: 99%

The Influence of Noise, Vibration, Cycle Paths, and Period of Day on Stress Experienced by Cyclists

et al. 2018

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“…It is proved in previous study that the cycling vibration intensity is responsible for cyclists' comfort (Gao et al, 2018), but the essential question is: What qualities of the pavement determine the cycling vibration? Pavement macro-texture, a road surface characteristic with wavelengths from 0.5 mm to 50 mm, is reported to be crucial to cycling vibration (Chou et al, 2015). For instance, Hölzel et al (2012) compared the cycling vibration on asphalt pavement, concrete slabs, bound gravel, and cobblestones.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…Cycling vibration on the tested sections and the correlation between comfort perception and vibration 3.2 Stress difference of pavement-tyre interface on front and rear wheelStructural analysis of bicycles in previous studies has clearly indicated that the process of stress distribution among the components of a bicycle(Chou et al, 2015; …”

mentioning

confidence: 98%

Cycling comfort on asphalt pavement: Influence of the pavement-tyre interface on vibration

Gao

Sha

Huang

et al. 2019

Journal of Cleaner Production

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Attainment of cycling comfort on urban roads encourages travelers to use bicycles more often, which has social and environment benefits such as to reduce congestion, air pollution and carbon emissions. Cycling vibration is responsible for the cyclists' perception of (dis)comfort. How asphalt pavement's surface characteristics relate to cycling comfort, however, remains undiscovered. In this study, the cycling vibration intensity on 46 sections of 24 urban roads was tested using a dynamic cycling comfort measure system while the cyclists' perception of vibration was identified via questionnaires; the cycling comfort was then defined based on the cycling vibration. To record the accurate pavement-tyre interface under a stable environment, a total of 19 pavement sections were scanned using a 3D digital camera. These 3D models were then 3D printed, which are used to conduct the pressure film test using a self-developed pavement-tyre interface test system. Three ranges of pressure films were adopted to characterize the pavement-tyre interface via 9 parameters, namely contact area (A c), unit bearing area (B u), stress intensity (S i), stress uniformity (S u), kurtosis (S ku), spacing (Sp a), maximum peak spacing (Sp max), radius ratio (R r) and fractal dimension (F d), in consideration of the area characteristics, pressure amplitude, peak spacing and shape of the interface. Finally, the significant interface parameters were identified, and the regression model between interface parameters and cycling comfort was established. Results show that the cycling vibration was described to be 'very comfortable' when the human exposure to vibration level (a wv) was less than 1.78 m/s 2 ; 'comfortable' when the a wv was between 1.78 m/s 2

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“…Outro parâmetro muito importante para a qualidade dos pavimentos cicloviários é a adequação da irregularidade superficial: como a vibração gerada pelo contato entre o pneu e o pavimento é transmitida pelo guidão e selim ao ciclista, ela afeta o conforto da condução da bicicleta. Mesmo que as velocidades dos ciclistas sejam relativamente baixas se comparadas com os veículos automotores, o sistema de absorção de impacto é muito mais simples, o que resulta em uma sensibilidade maior para o ciclista em pavimentos com alta irregularidade (BARBUDO et al, 2015, CHOU et al, 2015.…”

Section: Pavimentos Cicloviáriosunclassified

“…Alguns autores questionam a aplicação do IRI como medida irregularidade para vias cicláveis dado as notáveis diferenças de velocidade, pressão e frequência da circulação entre automóveis e bicicletas. Assim, propõem que a irregularidade seja avaliada por meio de simulações com bicicletas, que são os veículos que efetivamente serão afetados pela má qualidade do pavimento (Chou et al, 2015).…”

Section: Pavimentos Cicloviáriosunclassified

Contribuição para a avaliação da infraestrutura cicloviária do município de São Paulo por meio de parâmetros geométricos e de qualidade de pavimentos.

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Simulation of Bicycle-Riding Smoothness by Bicycle Motion Analysis Model

Cited by 11 publications

References 6 publications

The Influence of Noise, Vibration, Cycle Paths, and Period of Day on Stress Experienced by Cyclists

The Influence of Noise, Vibration, Cycle Paths, and Period of Day on Stress Experienced by Cyclists

Cycling comfort on asphalt pavement: Influence of the pavement-tyre interface on vibration

Contribuição para a avaliação da infraestrutura cicloviária do município de São Paulo por meio de parâmetros geométricos e de qualidade de pavimentos.

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