Vehicle-induced loads on traffic sign panels

Sanz-Andrés, Ángel; Santiago-Prowald, J.; Baker, Chris; Quinn, Andrew

doi:10.1016/s0167-6105(03)00035-7

Cited by 30 publications

(26 citation statements)

References 3 publications

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“…This parameter shows the dependence of the force coefficient on the several geometrical parameters involved: the pedestrian crosssection radius, the vehicle cross-section area and the distance between the pedestrian and the vehicle. Concerning the longitudinal force (along track), c Fx , the force expression (19) is very similar to the force generated by a passing vehicle on a traffic sign placed normal to the track [6]: first a small force pushes in the vehicle direction when the vehicle is approaching, but a strong peak in the opposite direction to the vehicle motion occurs when the vehicle leading edge is close to pass the sign [2]. The time evolution is symmetric with regard to the vehicle pass origin (the pass of the source in front of the pedestrian).…”

Section: T=ffmentioning

confidence: 90%

“…The velocity induced by a moving source, placed at XQ = U (XJ t (the position of the source in ground-fixed reference frame), on the pedestrian position is given by Sanz Andres et al [6]. …”

Section: Flow Generated By the Vehicle Motionmentioning

confidence: 99%

“…[6,7] the force variation (reported in Refs. [2,3]) measured on traffic signs was compared with a mathematical model, extension of the model presented in Ref.…”

Section: Introductionmentioning

confidence: 99%

“…[5][6][7], the aim of this paper is to obtain simple expressions for the speed generated by the vehicle motion and for the dependence with time of the force generated on the pedestrian, simple but able to explain the main characteristics of the phenomenon. The absence of appropriate experimental results published in the literature does not allow proper experimentalto-theoretical result's comparison.…”

Section: Introductionmentioning

confidence: 99%

“…[6], are based on the results of the full-scale measurements [3], which show "that the wind-induced forces can be treated separately from vehicle-induced loads, because the latter ones are generated largely by the transient pressure field induced by the vehicle motion relative to the sign and not by the motion of air".…”

Section: Introductionmentioning

confidence: 99%

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Vehicle-induced force on pedestrians

Sanz-Andrés

Laverón

Cuerva

et al. 2004

Journal of Wind Engineering and Industrial Aerodynamics

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The main object of this study is to contribute to the study of the train-induced force on pedestrians with a theoretical model based on unsteady potential flow. The same method can be applied to other bodies and other kind of moving vehicles.The outcome of this theoretical model is that the force coefficient (referred to the vehicle speed and the pedestrian cross-section diameter) acting on the pedestrian are proportional to a single parameter which involves the pedestrian cross-section diameter, the vehicle cross-section area and the distance between the pedestrian and the vehicle.The results of the present model concerning the change in modulus and orientation experienced by the pedestrian, as the vehicles pass by, has a similar appearance to that considered in the European standards.The results obtained are mainly qualitative because of the simplifying assumptions needed to obtain a simple formulation leading to analytical results, except in the case of a vehicle with streamlined front shapes, where quantitative results can be expected.

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Section: T=ffmentioning

confidence: 90%

Section: Flow Generated By the Vehicle Motionmentioning

confidence: 99%

“…[6,7] the force variation (reported in Refs. [2,3]) measured on traffic signs was compared with a mathematical model, extension of the model presented in Ref.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Vehicle-induced force on pedestrians

Sanz-Andrés

Laverón

Cuerva

et al. 2004

Journal of Wind Engineering and Industrial Aerodynamics

Self Cite

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Building a low cost wind turbine in highways for rural house electricity demand

Santhakumar¹,

Palanivel²,

Venkatasubramanian³

2018

Env Prog and Sustain Energy

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The main aim of this work is to design, fabricate, and test a wind turbine for power generation applications in rural areas. Vertical Axis Wind Turbines were selected to harness the energy from wind through the drag forces induced due to vehicular movements. Various parameters were analyzed for the design of a low‐cost wind turbine. A Savonius blade was selected for the design, which could be accommodated on the median of the highways. By using recycled materials, a low‐cost wind turbine was fabricated at a cost of $117.5 approximately. The wind turbine was placed on the houses and on the highway medians to test the power output at various operating conditions. Average electricity consumption at selected rural houses were calculated. The calculated average electricity demand during power cuts in the selected rural houses was around 0.2–0.6 kWh/day. Average generated electricity from the turbine at highways was observed to be around 0.67 kWh/day. The Levelized cost of electricity (LCOE) of the generated electricity from the proposed SWT on highways is around $0.04/kWh. The LCOE of the proposed design is relatively cheaper when compared with the conventional horizontal axis wind turbines. The energy demand during power cuts was met completely when the SWT was placed on the highways. © 2018 American Institute of Chemical Engineers Environ Prog, 38: 278–285, 2019

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A novel computer vision-based monitoring methodology for vehicle-induced aerodynamic load on noise barrier

Pan

Wang

Shen

et al. 2018

Struct Control Health Monit

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Due to the absence of antifatigue design under vehicle-induced aerodynamic load (VIAL) during the process of structural design, structural failures of noise barriers erected on urban highway viaducts have become a common issue in China. In this paper, a novel VIAL monitoring methodology is proposed, which can achieve a remote VIAL measuring only by analysis and application of the data from a traffic-monitoring camera. To establish this methodology, a VIAL determinative model and a computer vision system for measuring the vehicle running characteristics are developed. The accuracy and reliability of this methodology have been validated by a field experiment. By comparing with the results of vehicle-induced aerodynamic pressure (VIAP) from a sensor-based wind pressure acquisition system, it was found that the systemic root mean square deviations of maximum and minimum values of VIAP were 12.13% and 10.10%, respectively. KEYWORDS computer vision, noise barrier, numerical simulation, vehicle identification, vehicle-induced aerodynamic load (VIAL) Struct Control Health Monit. 2018;25:e2271.wileyonlinelibrary.com/journal/stc

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Vehicle-induced loads on traffic sign panels

Cited by 30 publications

References 3 publications

Vehicle-induced force on pedestrians

Vehicle-induced force on pedestrians

Building a low cost wind turbine in highways for rural house electricity demand

A novel computer vision-based monitoring methodology for vehicle-induced aerodynamic load on noise barrier

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