The Relationship between Maintenance Factor and Lighting Level in Tunnel Lighting

2019 ◽  
pp. 75-84 ◽  
Author(s):  
Mehmet Sait Cengiz
Keyword(s):  
Luminous Flux ◽  
Simulation Program ◽  
The Road ◽  
Long Time ◽  
Computer Environment ◽  
Measurement Devices ◽  
On The Road ◽  
High Level ◽  
Short Time ◽  
The Relationship

Performance decreases in lighting equipment with a high level of contamination have been analysed in this study. Effect of decreases in luminous flux arising from abrasions and usage on tunnel illumination levels has been analysed and results of measurements in real environment and simulation environment have been compared. Calculations, which are complicated and difficult by traditional methods, have been visualized by a simulation program prepared in the computer environment. Results recorded at 60 points by measuring by a luxmeter, which was placed in the middle of 2.266 m2 fields on the road surface into the tunnel, have been compared with simulation results. Thanks to the simulation program used, tunnel lighting measurements would not be necessary, which they take a long time in the physical environment by measurement devices and are carried out by stopping vehicle traffic. Tunnel lighting maintenances, which are complicated and take a long time, will be carried out in a short time and more accurately, and waste of resources could be prevented. It has been determined in the study that more accurate results could be obtained in ergonomic, economic, and using aspects.

scholarly journals Fail to Yield? An Analysis of Ambulance Crashes in Taiwan

2021 ◽  
Vol 13 (3) ◽  
pp. 1566
Author(s):  
Rong-Chang Jou ◽  
Ming-Che Chao
Keyword(s):  
Public Education ◽  
Weather Conditions ◽  
Medical Emergency ◽  
Transportation Safety ◽  
Emergency Vehicle ◽  
The Road ◽  
Mnl Model ◽  
On The Road ◽  
Crash Injuries ◽  
The Relationship

Introduction—Medical emergency vehicles help patients get to the hospital quickly. However, there were more and more ambulance crashes on the road in Taiwan during the last decade. This study investigated the characteristics of medical emergency vehicle crashes in Taiwan from January 2003 to December 2016. Methods—The ordered logit (OL) model, multinominal logit (MNL) model, and partial proportional odds (PPO) model were applied to investigate the relationship between the severity of ambulance crash injuries and its risk factors. Results—We found the various factors have different effects on the overall severity of ambulance crashes, such as ambulance drivers’ characteristics and road and weather conditions. When another car was involved in ambulance crashes, there was a disproportionate effect on the different overall severity, as found by the PPO model. Conclusions—The results showed that male ambulance drivers and car drivers who failed to yield to an ambulance had a higher risk of severe injury from ambulance crashes. Ambulance crashes are an emerging issue and need further policies and public education regarding Taiwan’s ambulance transportation safety.

CERTAIN SOCIO-PSYCHOLOGICAL ASPECTS OF THE EFFECTIVENESS OF EDUCATION AND PROPAGANDA SAFE BEHAVIOR ON THE ROAD

2021 ◽  
pp. 107-110
Author(s):  
О.О. Марокко
Keyword(s):  
Road Safety ◽  
Life Support ◽  
Psychological Aspects ◽  
Life Support System ◽  
Entire Life ◽  
The Road ◽  
The Subject ◽  
On The Road ◽  
Social Advertising ◽  
The Relationship

В статье рассматриваются некоторые социально-психологические аспекты повышения эффективности социальной рекламы в области безопасности дорожного движения. Автором отмечено, что для достижения цели субъект пропаганды дол- жен осознать взаимосвязь между его индивидуальным поведением на дороге и надежностью всей системы жизнеобеспечения. The article discuses some of the socio-psychological aspects of increasing of social advertising in the field of road safety. The author notes that in order to achieve the goal, the subject of propaganda must aware of the relationship between his individual behavior on the road and the reliability of the entire life support system.

scholarly journals Brake systems: a mind of their own

2021 ◽  
pp. 27-34
Author(s):  
Michael Ellims
Keyword(s):  
Failure Modes ◽  
Electronic Control ◽  
Hydraulic Systems ◽  
Control Software ◽  
The Road ◽  
Current Production ◽  
On The Road ◽  
High Level ◽  
Electronic Sensors ◽  
Systems Failure

Brake systems fitted to current production vehicles are not the relativity straightforward hydraulic systems that many people expect. Rather they have evolved into complex systems which are on their own deliberately capable of affecting the behaviour of a vehicle. Crucially they depend on computers, software and electronic sensors to allow them to form a model of how the vehicle is expected to behave on the road and how it is actually behaving. Like any artefact they can, and do fail. This paper provides a high-level overview of the braking systems currently in place, how these systems act and present some examples of how they have failed in practice. Index words: vehicles; vehicle electronics; electronic control; software; brake systems; failure modes

scholarly journals Utjecaj podizanja trajnih naselja i uzgoja žitarica na razvoj putnih komunikacija / The impact of permanent settlements and grain cultivation on the development of road communications

2017 ◽  
pp. 32-42
Author(s):  
Dženan Brigić
Keyword(s):  
Communication Network ◽  
Roman Period ◽  
Direct Impact ◽  
Neolithic Period ◽  
Community Members ◽  
Communication Development ◽  
The Road ◽  
Long Time ◽  
On The Road ◽  
The Impact

The transformation of hunter-gatherer society, who lived as nomads for a  very long time, largely influenced the development of road communication. These communities now established permanent settlements, especially in arable lands, and had a somewhat lifestyle than before. The cultivation of grains  and domestication of animals meant that people had no more need for migration and the search for better locations, instead they started setting up their  homes in the proximity to other community members, thereby forming the  first Neolithic settlements. By forming the settlements appeared the need to  establish a communication with other communities in the territory of present-day Balkans and wider, usually for the purpose of trade of certain goods,  which had a direct impact on the road communication development that laid  foundations for the development of the roads in the Roman period. Several  such settlements are known in the territory of present-day Bosnia that maintained continuity and tradition as well as road communications from the  Neolithic period up to the Roman period, i.e. Roman governor Publius Cornelius Dolabella, under whose governorship the widest road communication  network was built in the territory of the province of Dalmatia.     

scholarly journals P075 Travel or cheers? Examining the drivers and mechanisms of home court advantage in the 2020/2021 NBA regular season

2021 ◽  
Vol 2 (Supplement_1) ◽  
pp. A45-A45
Author(s):  
J Leota ◽  
D Hoffman ◽  
L Mascaro ◽  
M Czeisler ◽  
K Nash ◽  
...  
Keyword(s):  
Random Effects ◽  
Mixed Models ◽  
Fixed Effects ◽  
Natural Experiment ◽  
National Basketball Association ◽  
Home Team ◽  
The Road ◽  
On The Road ◽  
The Impact ◽  
The Relationship

Abstract Introduction Home court advantage (HCA) in the National Basketball Association (NBA) is well-documented, yet the co-occurring drivers responsible for this advantage have proven difficult to examine in isolation. The Coronavirus disease (COVID-19) pandemic resulted in the elimination of crowds in ~50% of games during the 2020/2021 NBA season, whereas travel remained unchanged. Using this ‘natural experiment’, we investigated the impact of crowds and travel-related sleep and circadian disruption on NBA HCA. Methods 1080 games from the 2020/2021 NBA regular season were analyzed using mixed models (fixed effects: crowds, travel; random effects: team, opponent). Results In games with crowds, home teams won 58.65% of the time and outrebounded (M=2.28) and outscored (M=2.18) their opponents. In games without crowds, home teams won significantly less (50.60%, p = .01) and were outrebounded (M=-0.41, p < .001) and outscored (M=-0.13, p < .05) by their opponents. Further, the increase in home rebound margin fully mediated the relationship between crowds and home points margin (p < .001). No significant sleep or circadian effects were observed. Discussion Taken together, these results suggest that HCA in the 2020/2021 NBA season was predominately driven by the presence of crowds and their influence on the effort exerted by the home team to rebound the ball. Moreover, we speculate that the strict NBA COVID-19 policies may have mitigated the travel-related sleep and circadian effects on the road team. These findings are of considerable significance to a domain wherein marginal gains can have immense competitive, financial, and even historical consequences.

The Study of Tire Pattern Noise by Using Wavelet Transform

2011 ◽  
Vol 105-107 ◽  
pp. 267-270 ◽  
Author(s):  
Sung Wook Hwang ◽  
Jin Hyuk Han ◽  
Ki Duck Sung ◽  
Sang Kwon Lee
Keyword(s):  
Fourier Transform ◽  
Wavelet Transform ◽  
The Other ◽  
Road Noise ◽  
Signal Process ◽  
The Road ◽  
Pattern Noise ◽  
On The Road ◽  
Non Stationary Signal ◽  
The Relationship

Tire noise is classified by pattern noise and road noise in a vehicle. Especially pattern noise has impulsive characteristics since it is generated by impacting of tire’s block on the road. Therefore, a special signal process is needed other than traditional Fourier Transform, because the characteristic of signal is varying with time. On the other hand, the pattern noise is a kind of non-stationary signal and is related to the impulsive train of pitch sequence of a block. In this paper, Wavelet Transform is applied to verify the impulse signal caused by impact of block and groove and to verify the relationship between the pattern noise and the train of pitch sequence.

V.—The Occurrence of Glacial Clay on the Cotteswold Plateau

1905 ◽  
Vol 2 (5) ◽  
pp. 216-219 ◽  
Author(s):  
C. Callaway
Keyword(s):  
The Road ◽  
Glacial Clay ◽  
On The Road ◽  
High Level

Mr. L. Richardson, F.G.S., having informed me that he had seen gravels at a high level on the road leading from Stow-on-the-Wold to Burford, I visited the locality, accompanied by Mr. J. W. Gray, F.G.S. About 3⅓ miles north of Burford, at the corner of the turning to Tangley, we came upon a deposit of clay with northern erratics in a quarry of oolite. As the position of such a formation was unexpected, and might be important, it seems desirable to record the discovery.

Modal Analysis of a Utility Bicycle From the Perspective of Riding Comfort

2019 ◽  
Author(s):  
Alberto Doria ◽  
Edoardo Marconi ◽  
Pierluca Cialoni
Keyword(s):  
Modal Testing ◽  
Vibration Modes ◽  
Response Functions ◽  
The Road ◽  
Power Spectral ◽  
Vehicle Structure ◽  
Power Spectral Densities ◽  
On The Road ◽  
The Relationship ◽  
Insight Into

Abstract The correlation between the modal properties and the comfort characteristics of a utility, step-through frame bicycle are investigated. In-plane modal testing of the vehicle is carried out both without and with the rider, and the major differences between the results obtained with the two conditions are highlighted. In order to have an insight into the contribution of the various bicycle components to the transmission of vibrations, the frequency response functions (FRFs) between the main interface points in the vehicle structure are measured and studied. Finally, the modal characteristics are compared with road tests data, emphasizing the relationship between the in-plane vibration modes and the main peaks in the acceleration power spectral densities (PSDs) measured on the road.

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