scholarly journals Energy Intensity and Human Mobility after the Anthropocene

2020 ◽  
Vol 12 (6) ◽  
pp. 2376 ◽  
Author(s):  
J. Mohorčich

After the Anthropocene, human settlements will likely have less available energy to move people and things. This paper considers the feasibility of five modes of transportation under two energy-constrained scenarios. It analyzes the effects transportation mode choice is likely to have on the size of post-Anthropocene human settlements, as well as the role speed and energy play in such considerations. I find that cars, including battery-electric cars, are not feasible under a highly energy-constrained scenario, that buses, metros, and walking are feasible but will limit human settlement size, and that cycling is likely the only mode of transportation that would make suburbs possible in an energy-constrained post-Anthropocene scenario.

2020 ◽  
Vol 8 (5) ◽  
pp. 455-464
Author(s):  
Junaidi Junaidi ◽  
Yulmardi Yulmardi ◽  
Hardiani Hardiani

This study aims to analyze the Jambi City community transportation modes' needs and diversity and influencing factors. This study uses primary data and secondary data. Primary data comes from a sample of households in Jambi City. Meanwhile, secondary data comes from related agencies or institutions at the National, Provincial, and City of Jambi levels related to transportation macro conditions. This study uses descriptive statistical analysis to analyze the diversity of transportation modes used in Jambi City. Meanwhile, to analyze the factors that influence transportation mode choice, it is estimated using logit ordinal regression models. The analysis results found that the primary mode of transportation used by the Jambi City community was personal motorbikes. Public transportation is the second choice, and the use of private cars is the third option. The choice of transportation mode is influenced by gender, main activity, car ownership, motorcycle ownership, and household income.


Sensors ◽  
2021 ◽  
Vol 21 (12) ◽  
pp. 4194
Author(s):  
Fulvio Babich ◽  
Giulia Buttazzoni ◽  
Francesca Vatta ◽  
Massimiliano Comisso

This study proposes a set of novel random access protocols combining Packet Repetition (PR) schemes, such as Contention Resolution Diversity Slotted Aloha (CRDSA) and Irregular Repetition SA (IRSA), with Non Orthogonal Multiple Access (NOMA). Differently from previous NOMA/CRDSA and NOMA/IRSA proposals, this work analytically derives the energy levels considering two realistic elements: the residual interference due to imperfect Interference Cancellation (IC), and the presence of requirements on the power spent for the transmission. More precisely, the energy-limited scenario is based on the relationship between the average available energy and the selected code modulation pair, thus being of specific interest for the implementation of the Internet of Things (IoT) technology in forthcoming fifth-generation (5G) systems. Moreover, a theoretical model based on the density evolution method is developed and numerically validated by extensive simulations to evaluate the limiting throughput and to explore the actual performance of different NOMA/PR schemes in energy-constrained scenarios.


LOGISTIK ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 14-20
Author(s):  
Adi Nursalim ◽  
Tri Mulyono

The sea transportation mode is a means or tool used by people to move from one place to another. Sea freight mode in DKI Jakara is expected to provide quality service to the users of the transportation services as well as the service users on board, other than that the passenger characteristics strongly affect passengers in choosing Mode of transportation. Based on the user data of traditional vessels majority of the female users differ from the Dishub ship of the majority of male users. The user's age for both ships is the majority of the age range of 21-30 years, including the majority work of students. The level of user earning both traditional and dishub vessels does not differ the majority have not been income according to the type of work. The purpose and frequency of user journeys of traditional vessels and dishub vessels are no different, with the purpose of the majority being a one-time recreation a year. The study aims to determine which variables will result in factors affecting the perpetrators and the probability of selecting the mode located in the Muara Angke port between the Dishub ship and the traditional vessel. Data processing uses the Serqual method to determine the number of samples from the population and SPSS program to find out the factors affecting the selection of the modes of traditional vessels of Dishub and vessels.


Author(s):  
Aniket Vinod Wankhade

Electric cars (EVs) are probable to be an opportunity power mode of transportation for the destiny because it has shown a wonderful capability to lessen the intake of petroleum based and different excessive CO2 emitting transportations fuels. on this look at, the additives of the BEVs device had been mentioned and a version of BEV at the MATLAB-Simulink platform was simulated. Furthermore, the applicable electric system additives in addition to its corresponding equations for verification had been recognized. moreover, all simulation effects were taken into consideration. This look at affords a basis for added researches.


Author(s):  
Arun Bajracharya

This chapter presents a study on the transportation mode choice behaviour of individuals with different socio-economic status. A previously developed system dynamics model has been adopted by differentiating the population mass into upper, middle, and lower classes. The simulation experiments with the model revealed that generally the upper class individuals would be more inclined to use a private car (PC) instead of public transportation (PT) when their tendency is compared to middle and lower class individuals. It was also observed that lower class individuals would be more willing to use PT instead of PC when their tendency is compared to middle and upper class individuals. As such, it would be difficult to encourage the upper class individuals to use PT instead of PC, and it would be successively easier to do so in the case of middle and lower class individuals. However, the results also indicated that under certain different circumstances, the upper class individuals would also prefer to go for PT, and the lower class ones could prefer to own and use PC instead of PT.


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