scholarly journals A Low-Cost Automatic Vehicle Identification Sensor for Traffic Networks Analysis

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5589 ◽  
Author(s):  
Fernando Álvarez-Bazo ◽  
Santos Sánchez-Cambronero ◽  
David Vallejo ◽  
Carlos Glez-Morcillo ◽  
Ana Rivas ◽  
...  
Keyword(s):  
Low Cost ◽  
Traffic Networks ◽  
Urban Mobility ◽  
Practical Application ◽  
Vehicle Identification ◽  
Energy Sensor ◽  
Automatic Vehicle Identification ◽  
Networks Analysis ◽  
The City ◽  
Theoretical Results

In recent years, different techniques to address the problem of observability in traffic networks have been proposed in multiple research projects, being the technique based on the installation of automatic vehicle identification sensors (AVI), one of the most successful in terms of theoretical results, but complex in terms of its practical application to real studies. Indeed, a very limited number of studies consider the possibility of installing a series of non-definitive plate scanning sensors in the elements of a network, which allow technicians to obtain a better conclusions when they deal with traffic network analysis such as urbans mobility plans that involve the estimation of traffic flows for different scenarios. With these antecedents, the contributions of this paper are (1) an architecture to deploy low-cost sensors network able to be temporarily installed on the city streets as an alternative of rubber hoses commonly used in the elaboration of urban mobility plans; (2) a design of the low-cost, low energy sensor itself, and (3) a sensor location model able to establish the best set of links of a network given both the study objectives and of the sensor needs of installation. A case of study with the installation of as set of proposed devices is presented, to demonstrate its viability.

scholarly journals Urban sidewalks, dysfunction and chaos on the projected floor. The search for accessible pavements and sustainable mobility

2021 ◽  
Author(s):  
Clara Domiciano Fidalgo ◽  
Isabela Machado Santos ◽  
Caroline de A. Nogueira ◽  
Maria Clara Souza Portugal ◽  
Lídia Maria T. Martins
Keyword(s):  
Public Space ◽  
Low Cost ◽  
Urban Mobility ◽  
Sustainable Mobility ◽  
Public Authorities ◽  
Street Vendors ◽  
Public Areas ◽  
New Type ◽  
Reduced Mobility ◽  
The City

The pavements of the sidewalks are not simple roofs for the floor of cities. The correct specification and application of the materials not only guarantees the accessibility of this space, but also favors and enhances the urban mobility of pedestrians, the walkability, much defended by several professionals of urbanism. Have you stopped to observe the city we live in? The streets, the sidewalks and all of your public areas? Note the immense "invasion" of public space, making life on sidewalkssomething stimulating and interesting, by the enormous confusion implanted: kiosks, street vendors / street vendors, cars parked in a forbidden place and sometimes on the sidewalks, barbecues, holes, steps, obstacles, furniture and urban equipment very poorly located,results of the complete dysfunction ofthis space. The problem observed reflects the current dismay of people and public authorities in relation to accessibility, mobility and safety of people, especially those with reduced mobility,disabled or not. That said, this work objectives tofind a floor of easy installation and low cost that meets the principles of universalaccessibility, urban aesthetics and enhances the mobility of people in the city with autonomy and security. Based on an observational and photographic study of the sidewalks of the Pelinca neighborhood, together with a technical survey of existing sidewalks,the information obtained will be compared with the guidelines contained in the accessibility and urban mobility legislation in force, whether at the municipal, state and federal levels. The data extracted in the evaluation of existing floors, will provide subsidies, for the identification of a new type of pavement, contributing to the Public Power in the elaborationof booklets for the implementation and or adoption of guiding measures for the construction and reformulation of sidewalks, in the city of Campos dos Goytacazes

Digital education: Using electronic resources in psychological support of the educational process

2020 ◽  
pp. 55-61
Author(s):  
Ju. A. Tikhonova
Keyword(s):  
Preschool Education ◽  
Educational Process ◽  
Psychological Support ◽  
Diagnostic Methods ◽  
Practical Application ◽  
Software Products ◽  
School Year ◽  
Psychological Service ◽  
Software Product ◽  
The City

The article discusses the development trends of the modern preschool education system in the aspect of the activity of the teacherpsychologist of the preschool educational organization. The experience of using 1C software products in the practical work of the psychological service of kindergarten 318 of the city of Perm in the aspects of psychological monitoring of children’s readiness to study at school and correctional and developmental work with preschool children is presented. The components of the child’s psychological readiness for school are described. On practical examples, diagnostic methods for determining the level of readiness of children for schooling are analyzed. The data of testing kindergarten pupils at the beginning of the 2019/2020 school year on the parameters allowing to identify urgent problems and determine the direction of the necessary correctional development work are presented. Features of the practical application of the software product 1C:Preschool Psychodiagnostics in the process of psychological support of preparing children for school are considered. Methods are described, the scope of which is aimed not only at the study of personality traits, but also at its development. The possibilities of using games of the 1C:Educational Collection in the correctional and developmental work are disclosed. The description of game collections is given, options for their use are presented.

EXPERIMENTATION OF A LOW COST ELECTRONIC SYSTEM FOR MEASUREMENT OF THE ULTRAVIOLET RADIATION INDEX TO THE CITY OF CAMPINA GRANDE, BRAZIL

2019 ◽  
Author(s):  
Emerson da Trindade Marcelino ◽  
Júlio Mannuel Tavares Diniz ◽  
ALVARO ROCHA ◽  
Eisenhawer de Moura Fernandes ◽  
Raimundo Duarte ◽  
...  
Keyword(s):  
Ultraviolet Radiation ◽  
Low Cost ◽  
Electronic System ◽  
The City

scholarly journals Sharing Lisboa: A Digital Social Market to Promote Sustainable and Energy Efficient Behaviours

Climate ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 34
Author(s):  
Catarina C. Rolim ◽  
Patrícia Baptista
Keyword(s):  
Climate Change ◽  
City Planning ◽  
Local Level ◽  
Urban Mobility ◽  
Goods And Services ◽  
New City ◽  
Social Market ◽  
The City ◽  
Academic Year ◽  
Change Mitigation

Several solutions and city planning policies have emerged to promote climate change and sustainable cities. The Sharing Cities program has the ambition of contributing to climate change mitigation by improving urban mobility, energy efficiency in buildings and reducing carbon emissions by successfully engaging citizens and fostering local-level innovation. A Digital Social Market (DSM), named Sharing Lisboa, was developed in Lisbon, Portugal, supported by an application (APP), enabling the exchange of goods and services bringing citizens together to support a common cause: three schools competing during one academic year (2018/2019) to win a final prize with the engagement of school community and surrounding community. Sharing Lisboa aimed to promote behaviour change and the adoption of energy-saving behaviours such as cycling and walking with the support of local businesses. Participants earned points that reverted to the cause (school) they supported. A total of 1260 users was registered in the APP, collecting more than 850,000 points through approximately 17,000 transactions. This paper explores how the DSM has the potential to become a new city service promoting its sustainable development. Furthermore, it is crucial for this concept to reach economic viability through a business model that is both profitable and useful for the city, businesses and citizens, since investment will be required for infrastructure and management of such a market.

scholarly journals Computation offloading through mobile vehicles in IoT-edge-cloud network

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Jun Long ◽  
Yueyi Luo ◽  
Xiaoyu Zhu ◽  
Entao Luo ◽  
Mingfeng Huang
Keyword(s):  
Reinforcement Learning ◽  
Energy Consumption ◽  
Low Cost ◽  
Computation Offloading ◽  
Mobile Edge Computing ◽  
Challenging Problem ◽  
Learning Technique ◽  
Cloud Network ◽  
The City ◽  
Task Offloading

AbstractWith the developing of Internet of Things (IoT) and mobile edge computing (MEC), more and more sensing devices are widely deployed in the smart city. These sensing devices generate various kinds of tasks, which need to be sent to cloud to process. Usually, the sensing devices do not equip with wireless modules, because it is neither economical nor energy saving. Thus, it is a challenging problem to find a way to offload tasks for sensing devices. However, many vehicles are moving around the city, which can communicate with sensing devices in an effective and low-cost way. In this paper, we propose a computation offloading scheme through mobile vehicles in IoT-edge-cloud network. The sensing devices generate tasks and transmit the tasks to vehicles, then the vehicles decide to compute the tasks in the local vehicle, MEC server or cloud center. The computation offloading decision is made based on the utility function of the energy consumption and transmission delay, and the deep reinforcement learning technique is adopted to make decisions. Our proposed method can make full use of the existing infrastructures to implement the task offloading of sensing devices, the experimental results show that our proposed solution can achieve the maximum reward and decrease delay.

scholarly journals An “Animated Spatial Time Machine” in Co-Creation: Reconstructing History Using Gamification Integrated into 3D City Modelling, 4D Web and Transmedia Storytelling

2021 ◽  
Vol 10 (7) ◽  
pp. 460
Author(s):  
Mario Matthys ◽  
Laure De Cock ◽  
John Vermaut ◽  
Nico Van de Weghe ◽  
Philippe De Maeyer
Keyword(s):  
Public Space ◽  
Low Cost ◽  
Three Dimensional ◽  
Physical Situation ◽  
Time Machine ◽  
Transmedia Storytelling ◽  
Spatial Reconstruction ◽  
3D Software ◽  
The City ◽  
City Models

More and more digital 3D city models might evolve into spatiotemporal instruments with time as the 4th dimension. For digitizing the current situation, 3D scanning and photography are suitable tools. The spatial future could be integrated using 3D drawings by public space designers and architects. The digital spatial reconstruction of lost historical environments is more complex, expensive and rarely done. Three-dimensional co-creative digital drawing with citizens’ collaboration could be a solution. In 2016, the City of Ghent (Belgium) launched the “3D city game Ghent” project with time as one of the topics, focusing on the reconstruction of disappeared environments. Ghent inhabitants modelled in open-source 3D software and added animated 3D gamification and Transmedia Storytelling, resulting in a 4D web environment and VR/AR/XR applications. This study analyses this low-cost interdisciplinary 3D co-creative process and offers a framework to enable other cities and municipalities to realise a parallel virtual universe (an animated digital twin bringing the past to life). The result of this co-creation is the start of an “Animated Spatial Time Machine” (AniSTMa), a term that was, to the best of our knowledge, never used before. This research ultimately introduces a conceptual 4D space–time diagram with a relation between the current physical situation and a growing number of 3D animated models over time.

scholarly journals New Mobility Paradigm and Indigenous Construction of Places: Physical and Symbolic Mobility of Aymara Groups in the Urbanization Process, Chile

2021 ◽  
Vol 13 (8) ◽  
pp. 4382
Author(s):  
Gonzalo Salazar ◽  
Paloma González
Keyword(s):  
Latin American ◽  
Methodological Approach ◽  
Urban Mobility ◽  
Structured Interviews ◽  
Physical Movement ◽  
Rural Municipality ◽  
Political Implications ◽  
Geographical Elements ◽  
Construction Of Place ◽  
The City

In the current global scenario, in which mobility has been strongly impacted, it is relevant to highlight certain mobility experiences of Indigenous Latin American peoples, in which new cultural and geographical elements justify revisiting this phenomenon. In this context, the mobility of the Aymara ethnic group offers an opportunity for such a second look. Although the subject has been approached from the perspectives of internal migration processes and physical movement, as in other Latin American cases, studies have omitted some important aspects for its analysis, such as the practices, meanings, and political implications associated with mobility. Based on the new mobility paradigm, this article seeks to strengthen the perspective on mobility by researching rural-urban mobility practices and their meaning regarding the experiences of Aymara people who migrated from the rural municipality of Putre to settle in the city of Arica from the 1950s. At the same time, it is shown that these Aymara mobility practices imply spatiotemporal dynamics that are key for the construction of place, and allow for a widening of base elements that should be considered in the new mobility paradigm. This research is based on five years of ethnography, including mobile accompaniment and semi-structured interviews. This methodological approach has allowed researchers to explore how elements related to physical and symbolic mobility have constantly constructed relational spaces within the Arica and Parinacota region over time. This shows that mobility does not only refer to physical movement, but to politics, emotions, culture, and memory as well. From these results, the article examines and discusses key elements related to physical and symbolic mobility, and their implications in political and intercultural terms.

Ni-P Amorphous Alloy Efficient Electrocatalyst with Hierarchical Structure toward Borohydride Oxidation

2021 ◽  
Author(s):  
Jingjing Yu ◽  
Bihao Hu ◽  
Chuanlan Xu ◽  
Jiazhi Meng ◽  
Shu Yang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Amorphous Alloy ◽  
Hierarchical Structure ◽  
Low Cost ◽  
Practical Application ◽  
Borohydride Oxidation

Nickel is widely researched in the electrooxidation of borohydride due to its low cost and abundant reserves, but it’s catalytic activity and stability need to be improved for practical application....

scholarly journals Understanding Spatial Variability of NO2 in Urban Areas Using Spatial Modelling and Data Fusion Approaches

Atmosphere ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 179
Author(s):  
Said Munir ◽  
Martin Mayfield ◽  
Daniel Coca
Keyword(s):  
Data Fusion ◽  
Spatial Variability ◽  
Urban Areas ◽  
Road Traffic ◽  
Dispersion Model ◽  
Low Cost ◽  
Spatial Modelling ◽  
City Centre ◽  
Small Scale ◽  
The City

Small-scale spatial variability in NO2 concentrations is analysed with the help of pollution maps. Maps of NO2 estimated by the Airviro dispersion model and land use regression (LUR) model are fused with measured NO2 concentrations from low-cost sensors (LCS), reference sensors and diffusion tubes. In this study, geostatistical universal kriging was employed for fusing (integrating) model estimations with measured NO2 concentrations. The results showed that the data fusion approach was capable of estimating realistic NO2 concentration maps that inherited spatial patterns of the pollutant from the model estimations and adjusted the modelled values using the measured concentrations. Maps produced by the fusion of NO2-LCS with NO2-LUR produced better results, with r-value 0.96 and RMSE 9.09. Data fusion adds value to both measured and estimated concentrations: the measured data are improved by predicting spatiotemporal gaps, whereas the modelled data are improved by constraining them with observed data. Hotspots of NO2 were shown in the city centre, eastern parts of the city towards the motorway (M1) and on some major roads. Air quality standards were exceeded at several locations in Sheffield, where annual mean NO2 levels were higher than 40 µg/m3. Road traffic was considered to be the dominant emission source of NO2 in Sheffield.

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