scholarly journals Electrical Longboard for Everyday Urban Commuting

2020 ◽  
Vol 12 (19) ◽  
pp. 8091
Author(s):  
Alexandru Ciocan ◽  
Cosmin Ungureanu ◽  
Alin Chitu ◽  
Elena Carcadea ◽  
George Darie
Keyword(s):  
Travel Distance ◽  
The Road ◽  
Wheel Model ◽  
Power And Energy ◽  
Full Charge ◽  
Daily Travel

This paper addresses the possibility of using an electric longboard in daily travel. A conventional longboard was transformed into an electric one and tested in ICSI Rm. Valcea labs. A series of tests were performed both at the laboratory level and, under normal running conditions, outdoors. Nevertheless, two possible scenarios have been taken into consideration. First, when the electric longboard is running on a flat road with a cruise speed, while the second scenario considered was that of climbing a hill with a 10% slope. The results confirmed the expectations and showed that a full charge of the batteries allows a trip over a distance of almost 50 km on a flat route having a consumption of about 10 Wh/km. However, there are some things to keep in mind when making travel distance predictions. The quality and the profile of the road, the weight of the rider, the rider position, all of these are factors which can significantly influence the predictions regarding the travel distance. Moreover, if the optimization is taken into account, several adjustments can be done in choosing the size and wheel model, whether or not to equip the skateboard with suspensions as well as a compromise between power and energy densities when choosing battery type is essential.

scholarly journals 10. Estimation of Daily Travel Distance and Home Range

2002 ◽  
Vol 18 (3) ◽  
pp. 326-333 ◽  
Author(s):  
Juichi YAMAGIWA ◽  
Yukiko SHIMOOKA
Keyword(s):  
Home Range ◽  
Travel Distance ◽  
Daily Travel Distance ◽  
Daily Travel

scholarly journals Predicting a Vehicle's Distance Traveled from Short-duration Data

2019 ◽  
Author(s):  
Ruohan Li ◽  
Kara M Kockelman
Keyword(s):  
Short Duration ◽  
Travel Distance ◽  
Full Time ◽  
Gini Coefficients ◽  
Total Distance ◽  
Daily Travel Distance ◽  
Annual Total ◽  
Distance Data ◽  
Instrumented Vehicles ◽  
Daily Travel

This article uses one year’s worth of daily travel distance data for 252 Seattle households’ vehicles to ascertain that one day’s distance (plus day of week and month of year information) accounts for 10.7% of the variability in that vehicle’s annual (total) distance traveled, while two and seven consecutive days’ distance values predict 16.7% and 33.6%, respectively. In analyzing Gini coefficients (which average 0.546 + / − 0.117 across these instrumented vehicles), one finds that full-time employed females have the most stable day-to-day driving patterns, allowing for shorter-duration surveys of such households.

scholarly journals Suasana Mendung di Cempaka Sari

2020 ◽  
Vol 19 ◽  
pp. 73-77
Author(s):  
Noor Azizan Rahman Paiman
Keyword(s):  
Travel Distance ◽  
Daily Activities ◽  
Visual Elements ◽  
Environmental Experience ◽  
Daily Travel Distance ◽  
Daily Travel

This work entitled “Suasana Mendung di Cempaka Sari” in terms of ideas is held through environmental experience encountered by the artist since residing in Perak (from 2001 until now). The artist lives in Seri Manjung district and works at Universiti Teknologi MARA (UiTM) Perak Branch, Seri Iskandar (in Bota sub-district). Hence the daily travel distance of the artist goes back and forth from home to work and vice versa is about 100 kilometres. Through “daily activities” back and forth, the artist indirectly has been served with various shapes and visual elements pertaining to “social products” that are having “potential” to be questioned such as politics, economics, culture, religion, or environment in supporting the formation of his ideas for designing artwork.

295 Impacts of travel distance and travel direction on back-to-back games in the National Basketball Association (NBA)

SLEEP ◽  
2021 ◽  
Vol 44 (Supplement_2) ◽  
pp. A118-A118
Author(s):  
Jonathan Charest ◽  
Charles Samuels ◽  
Célyne Bastien ◽  
Doug Lawson ◽  
Michael Grandner
Keyword(s):  
Exploratory Study ◽  
Travel Distance ◽  
National Basketball Association ◽  
Professional Athletes ◽  
Time Zone ◽  
The Road ◽  
Winning Percentage ◽  
Recovery Strategies ◽  
On The Road ◽  
The Impact

Abstract Introduction Travel fatigue and circadian disruptions are known factors that can hinder performance in professional athletes. The present exploratory study focused on investigating the impact of travel distance and direction on back-to-back games over the 2013–2020 seasons in the National Basketball Association (NBA). Methods Data from away and home games of back-to-back sequences, in two different cities, from the 2013 to 2020 seasons in the National Basketball Association were included in this study. Information from every selected game was retrieved from the official website of the NBA (www.nba.com). The outcomes were based on winning percentage with additional covariates including the direction of travel (eastward or westward) and the distance travelled (0-500km – 501-1000km – 1001-1500km – 1501km and more). If a team played both games of a back-to-back sequence on the road, they were considered Away-Away; if a team played the first game of a back-to-back sequence at home they were considered Home-Away; if a team played the first game of a back-to-back sequence on the road they were considered Away-Home. Results The sequence Away-Home significantly increases the likelihood of winning compared to the Away-Away and Home-Away sequences 54.4% (95%CI: 54.4,54.5); 39.2% (95%CI: 37.2,41.2), and 36.8%, (95%CI: 36.7,36.8), respectively. Following a road game, when teams travel back home, every additional 500km reduces the likelihood of winning by approximately 4% (p = 0.038). Finally, after withdrawing the Away-Home sequence, travelling eastward significantly increases the chance of winning (p = 0.024) compared to westward travel but has no significant impact on the probability of winning compared to neutral time zone travel (p = 0.091). Conclusion The accumulation of travel fatigue and the chronic circadian desynchronization that occurs over the NBA season can acutely disturb sleep and recovery. It appears that tailored sleep and recovery strategies need to be dynamically developed throughout the season to overcome the different challenges of the NBA schedule. Support (if any):

scholarly journals The Relationship Between GPS Sampling Interval and Estimated Daily Travel Distances in Chacma Baboons (Papio ursinus)

2021 ◽  
Author(s):  
R. McCann ◽  
A. M. Bracken ◽  
C. Christensen ◽  
I. Fürtbauer ◽  
A. J. King
Keyword(s):  
Animal Movement ◽  
Short Interval ◽  
Sampling Interval ◽  
Travel Distance ◽  
Gps Data ◽  
Papio Ursinus ◽  
Chacma Baboons ◽  
The Relationship ◽  
Travel Distances ◽  
Daily Travel

AbstractModern studies of animal movement use the Global Positioning System (GPS) to estimate animals’ distance traveled. The temporal resolution of GPS fixes recorded should match those of the behavior of interest; otherwise estimates are likely to be inappropriate. Here, we investigate how different GPS sampling intervals affect estimated daily travel distances for wild chacma baboons (Papio ursinus). By subsampling GPS data collected at one fix per second for 143 daily travel distances (12 baboons over 11–12 days), we found that less frequent GPS fixes result in smaller estimated travel distances. Moving from a GPS frequency of one fix every second to one fix every 30 s resulted in a 33% reduction in estimated daily travel distance, while using hourly GPS fixes resulted in a 66% reduction. We then use the relationship we find between estimated travel distance and GPS sampling interval to recalculate published baboon daily travel distances and find that accounting for the predicted effect of sampling interval does not affect conclusions of previous comparative analyses. However, if short-interval or continuous GPS data—which are becoming more common in studies of primate movement ecology—are compared with historical (longer interval) GPS data in future work, controlling for sampling interval is necessary.

scholarly journals Measurement of International Roughness Index by UsingZ-Axis Accelerometers and GPS

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Yuchuan Du ◽  
Chenglong Liu ◽  
Difei Wu ◽  
Shengchuan Jiang
Keyword(s):  
Measurement System ◽  
Low Cost ◽  
Pavement Management ◽  
Small Scale ◽  
International Roughness Index ◽  
The Road ◽  
Quarter Car Model ◽  
Pavement Management Systems ◽  
Roughness Index ◽  
Wheel Model

The International Roughness Index (IRI) is a well-recognized standard in the field of pavement management. Many different types of devices can be used to measure the IRI, but these devices are mainly mounted on a full-size automobile and are complicated to operate. In addition, these devices are expensive. The development of methods for IRI measurement is a prerequisite for pavement management systems and other parts of the road management industry. Based on the quarter-car model and the vehicle vibration caused by road roughness, there is a strong correlation between the in-carZ-axis acceleration and the IRI. The variation of speed of the car during the measurement process has a large influence on IRI estimation. A measurement system equipped withZ-axis accelerometers and a GPS device was developed. Using the self-designing measurement system based on the methodology proposed in this study, we performed a small-scale field test. We used a one-wheel linear model and two-wheel model to fit the variation of theZ-axis acceleration. The test results demonstrated that the low-cost measurement system has good accuracy and could enhance the efficiency of IRI measurement.

scholarly journals The Influence of Urban Flooding on Residents’ Daily Travel: A Case Study of Macau with Proposed Ameliorative Strategies

Water ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1825
Author(s):  
Li ◽  
Zhou
Keyword(s):  
Storm Surges ◽  
Travel Distance ◽  
Mitigation Strategies ◽  
Geographical Information ◽  
Extreme Weather Events ◽  
Urban Flooding ◽  
Prevention Measures ◽  
Adaptation Measures ◽  
Preventative Measures ◽  
Daily Travel

Climate change has resulted in more extreme weather events in coastal cities, and understanding how daily life is impacted is crucial to make effective adaptation measures. Using Macau as a testbed, this research describes examines the impacts of flooding caused by storm surges on residents’ daily travel and proposes measures to ameliorate disaster risks. Spatial extents of urban floods were modelled through inundation simulations using geographical information data. An analysis of the travel distance increases from residents’ homes to common types of destinations was performed both under normal conditions and during flood events in GIS (Geographic Information System) to assess the influence of urban flooding on residents’ daily travel. The results show that one third of the land is threatened by floods in Macau. People’s average travel distance increases as the warning levels escalate, and travel distance is predicted to rise by up to 64.5%. Based on the findings, the study proposes mitigation strategies to minimize urban flooding’s impacts. It suggests that the area more densely populated is not necessarily the one requiring the deployment of preventative measures with the highest priority, as a traffic analysis is identified as the key area which demands disaster prevention measures.

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