Personal Mobility in an Urbanizing World

Keyword(s):  
2013 ◽  
Vol 133 (3) ◽  
pp. 282-289
Author(s):  
Noriaki Hirose ◽  
Ryosuke Tajima ◽  
Kazutoshi Sukigara ◽  
Yuji Tsusaka

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 437
Author(s):  
Yuya Onozuka ◽  
Ryosuke Matsumi ◽  
Motoki Shino

Detection of traversable areas is essential to navigation of autonomous personal mobility systems in unknown pedestrian environments. However, traffic rules may recommend or require driving in specified areas, such as sidewalks, in environments where roadways and sidewalks coexist. Therefore, it is necessary for such autonomous mobility systems to estimate the areas that are mechanically traversable and recommended by traffic rules and to navigate based on this estimation. In this paper, we propose a method for weakly-supervised recommended traversable area segmentation in environments with no edges using automatically labeled images based on paths selected by humans. This approach is based on the idea that a human-selected driving path more accurately reflects both mechanical traversability and human understanding of traffic rules and visual information. In addition, we propose a data augmentation method and a loss weighting method for detecting the appropriate recommended traversable area from a single human-selected path. Evaluation of the results showed that the proposed learning methods are effective for recommended traversable area detection and found that weakly-supervised semantic segmentation using human-selected path information is useful for recommended area detection in environments with no edges.


2021 ◽  
Vol 13 (3) ◽  
pp. 1270
Author(s):  
Sung Il Kwag ◽  
Uhjin Hur ◽  
Young Dae Ko

Though new technologies have been applied in all industries, electric mobility technology using eco-friendly energy is drawing a great deal of attention. This research focuses on a personal electric mobility system for urban tourism. Some tourism sites such as Gyeongju, Korea, have broad spaces for tourists to walk around, but the public transportation system has been insufficiently developed due to economic reasons. Therefore, personal mobility technology such as electric scooters can be regarded as efficient alternatives. For the operation of electric scooters, a charging infrastructure is necessary. Generally, scooters can be charged via wires, but this research suggests an advanced electric personal mobility system based on wireless electric charging technology that can accommodate user convenience. A mathematical model-based optimization was adopted to derive an efficient design for a wireless charging infrastructure while minimizing total investment costs. By considering the type of tourists and their tour features, optimal locations and lengths of the static and dynamic wireless charging infrastructure are derived. By referring to this research, urban tourism can handle transportation issues from a sustainable point of view. Moreover, urban tourism will have a better chance of attracting tourists by conserving heritage sites and by facilitating outdoor activities with electric personal mobility.


2021 ◽  
Vol 128 ◽  
pp. 103163
Author(s):  
Seunghyeon Lee ◽  
Ingon Ryu ◽  
Dong Ngoduy ◽  
Nam H. Hoang ◽  
Keechoo Choi

1994 ◽  
Vol 1 (4) ◽  
pp. 12 ◽  
Author(s):  
M. Zaid
Keyword(s):  

2021 ◽  
Vol 1 (3) ◽  
pp. 747-764
Author(s):  
Aggelos Soteropoulos ◽  
Paul Pfaffenbichler ◽  
Martin Berger ◽  
Günter Emberger ◽  
Andrea Stickler ◽  
...  

Developments in the field of automated mobility will greatly change our mobility and the possibilities to get from one place to another. This paper presents different scenarios for personal mobility in Austria, anticipating the possibilities and developments in the field of automated vehicles (AVs). The scenarios were developed using a systematically formalized scenario technique and expand the social and political discourse on automated mobility, which is currently characterized by a lack of experience and visibility as an established transport service. Using system dynamics modeling techniques, i.e., the Metropolitan Activity Relocation Simulator (MARS), impacts of the scenarios on the Austrian transportation system are estimated. The simulations show that, without suitable transport policy measures, automated mobility will lead to a significant increase in the volume of individual traffic and to modal shift effects with lower traffic volumes for public transport, walking and cycling. In addition, without a link between AVs and post-fossil propulsion systems, increases in pollutant emissions can also be expected. In contrast, the simulation results of an increased use of AVs in public transport show positive effects for the support of a more sustainable mobility. Hence, transport policy measures accompanying the introduction and development of automated vehicles will be needed in the future to reach a sustainable development.


2021 ◽  
pp. 31-36
Author(s):  
А.А. Юнг ◽  
А.Г. Шевцова

В статье проведен анализ аварийности, связанной с использованием средств индивидуальной мобильности в различных условиях движения. За последние несколько лет количество дорожно-транспортных происшествий с участием указанных средств заметно выросло. Причиной этому явился скачок спроса на данные модели как среди молодежи, так и среди населения более старшего возраста в силу их высокой мобильности. In this article, an analysis of the accident rate of individual mobility equipment in various traffic conditions was carried out. Over the past few years, the number of road accidents involving individual vehicles has increased significantly. The reason for this may be, due to their high mobility, a jump in demand for these models among both young people and the more mature population.


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