Performance analysis of speed control humps and dips based on health and comfort criteria

Khorshid, Emad; Alali, Fatma; Alfares, Mohamed

doi:10.1504/ijvnv.2017.089528

Cited by 4 publications

(2 citation statements)

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“…The study indicated that the speed hump with cycloidal and Seminole profiles have better performance than the used speed humps on public roads. The results also proved that currently installed speed humps on public roads are not effective against vehicles equipped with active suspension systems or sports cars [16].…”

Section: Effect Of Speed Humps On Speed and Other Factorsmentioning

confidence: 85%

“…Also the sinusoidal profile appears to be an appropriate option from the viewpoint of hump's efficiency [15]. In a related context, Khorshid et al (2017) carried out a field study to compare different design shapes of speed humps with regard to comfort and human health [16]. The study indicated that the speed hump with cycloidal and Seminole profiles have better performance than the used speed humps on public roads.…”

Section: Effect Of Speed Humps On Speed and Other Factorsmentioning

confidence: 99%

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Public Evaluation of Speed Humps Performance and Effectiveness

Shwaly¹,

Al-Ayaat

Zakaria

2018

CivileJournal

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In Egypt, it is believed that speed humps are the cheapest and best solutions to reduce vehicles speed and thus reduce the number of potential accidents. Due to the lack of specifications in Egypt that govern the installation of speed humps, they were spread randomly and with different dimensions without adequate studies. Consequently, this practice can cause adverse effects on the road users and the surrounding environment. For this purpose, a questionnaire was designed to discuss the different effects of using speed humps in Kafr El-Sheikh city as a typical model in the Egyptian cities. To verify that the questionnaire is appropriate for the intended task, it was evaluated by 30 respondents aged 18 years and over. After the trial process, the required corrections were made to the proposed form of the questionnaire. Then, final questionnaires were distributed and 1000 responses were collected from all road users, whether they were pedestrians, drivers, and owners of vehicles or vehicle repairmen by using face-to-face interviews. The responses were analysed using SPSS program. The results reflected that the installation of speed humps contributed greatly to reduce vehicles speed, the flow of traffic and accidents rate. On the other hand, the results proved that humps also contribute significantly to the environmental pollution, damage to the pavement and vehicles especially when they are poorly designed and located. The majority of respondents attributed the random spread of the speed humps to the weakness of the authorities in law enforcement and the prevention of the installation of new humps without authorization. Finally, with the widespread use of speed humps and with the exception of the positive impact on traffic safety, it also has negative impacts on both the economy and the environment. Finally, the use of speed humps can cause many harmful effects to the neighbourhood, if there no strict control on its installation process. Unless specifications and some standards should be strictly followed, other means of traffic calming measures should be considered.

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Section: Effect Of Speed Humps On Speed and Other Factorsmentioning

confidence: 85%

Section: Effect Of Speed Humps On Speed and Other Factorsmentioning

confidence: 99%

Public Evaluation of Speed Humps Performance and Effectiveness

Shwaly¹,

Al-Ayaat

Zakaria

2018

CivileJournal

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Optimal design of traffic calming devices using computer simulation

Khorshid

Awada

Falah

et al. 2020

International Journal of Modelling and Simulation

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Study of the dynamic response of a quarter car model coupled with a human passenger for different speed bumps profiles

Alenezi,

Mohammed

2024

Noise & Vibration Worldwide

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This work proposes a three-degrees-of-freedom Human-Vehicle-Road model to study the system’s dynamic as a response to road-induced excitations and evaluate the effect of vibrations on ride comfort. The study of the dynamic responses of the system is concerned only with the vertical motion of the passenger, sprung mass, and the tire when subjected to different excitation profiles. The model of the human is developed based on literature and then coupled to a quarter-car model using analytical methods. The mathematical model that describes the motion of the system is derived using Newton’s law of motion. The numerical simulations of the mathematical model using MATLAB provide the basis for the ride comfort analysis. The effects of the bump geometry are also studied in terms of the amplitude of each displacement, velocity, acceleration, and transmitted force. The ride comfort analysis is based on the ISO 2631 and BS6841 standards. The new concept of bump rotation is introduced and discussed in comparison with previous results. The investigation of the angle of rotation is presented as a totality of case studies where the bump is rotated with respect to the x-axis from 0 to 75° which is equivalent to a longer bump while maintaining the same height. The dynamic response for all rotation angles is collected to show that longer bumps have better performance because they reduce the forces transmitted to the system while maintaining the required level of discomfort to control the speeds of vehicles on roads. The ride comfort analysis concludes that the cycloidal bump has better performance as a speed control device.

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Performance analysis of speed control humps and dips based on health and comfort criteria

Cited by 4 publications

References 0 publications

Public Evaluation of Speed Humps Performance and Effectiveness

Public Evaluation of Speed Humps Performance and Effectiveness

Optimal design of traffic calming devices using computer simulation

Study of the dynamic response of a quarter car model coupled with a human passenger for different speed bumps profiles

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