scholarly journals Evaluation of the Use of a City Center through the Use of Bluetooth Sensors Network

2019 ◽  
Vol 11 (4) ◽  
pp. 1002
Author(s):  
Javier Martínez Plumé ◽  
Juan Marténez Durá ◽  
Ramón Cirilo Gimeno ◽  
Francisco Soriano García ◽  
Antonio García Celda
Keyword(s):  
Smart Cities ◽  
Low Cost ◽  
Motor Vehicles ◽  
Connected Vehicle ◽  
City Center ◽  
New Classification ◽  
Urban Network ◽  
Historic Center ◽  
High Level ◽  
The City

In order to achieve the objectives of Smart Cities, public administrations need to take measures to regulate mobility, which undoubtedly requires a high level of information and sensorization. Until the implementation of the connected vehicle takes place, it is still necessary to install sensors to obtain information about mobility. Bluetooth sensors are becoming a useful tool due to the low cost of equipment and installation. The use of Bluetooth sensors in cities, with short distances between sensors, makes it necessary to propose new classification algorithms that allow the trips of pedestrians and vehicles to be differentiated. This article presents the study carried out in the city of Valencia to determine the use of motor vehicles in the historic center and propose a new classification algorithm to distinguish between an onboard Bluetooth device and the same device carried by a pedestrian when it is not possible to use the travel time for the classification due to the short distance between sensors. This causes very similar or even indistinguishable travel times for vehicles and for pedestrians. We also propose an algorithm that allows vehicles to be classified according to what type of trip is made always through the historical center of Valencia, whether it is to make a shorter itinerary through the city or to access the center for any type of business. This algorithm would enable the Origin-Destination matrix of an urban network with short distances between sensors if they are available in all entries and exits. Likewise, the results obtained have allowed to positively evaluate the algorithm defined to distinguish between trips made by a pedestrian or a vehicle in a city, using the MAC address of their mobile devices with very short distances among sensors. The results of this study show that it is possible to use Bluetooth technology, with low cost installations, to evaluate the use of the city by motor vehicles.

scholarly journals Selecting Freight Transportation Modes in Last-Mile Urban Distribution in Pamplona (Spain): An Option for Drone Delivery in Smart Cities

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4748
Author(s):  
Adrian Serrano-Hernandez ◽  
Aitor Ballano ◽  
Javier Faulin
Keyword(s):  
Public Transportation ◽  
Smart Cities ◽  
Freight Transportation ◽  
City Center ◽  
Analytic Hierarchy ◽  
Freight Logistics ◽  
Transportation Modes ◽  
Last Mile ◽  
Urban Distribution ◽  
The City

Urban distribution in medium-sized cities faces a major challenge, mainly when deliveries are difficult in the city center due to: an increase of e-commerce, weak public transportation system, and the promotion of urban sustainability plans. As a result, private cars, public transportation, and freight transportation compete for the same space. This paper analyses the current state for freight logistics in the city center of Pamplona (Spain) and proposes alternative transportation routes and transportation modes in the last-mile city center distribution according to different criteria evaluated by residents. An analytic hierarchy process (AHP) was developed. A number of alternatives have been assessed considering routes and transportation modes: the shortest route criterion and avoiding some city center area policies are combined with traditional van-based, bike, and aerial (drone) distribution protocols for delivering parcels and bar/restaurant supplies. These alternatives have been evaluated within a multicriteria framework in which economic, environmental, and social objectives are considered at the same time. The point in this multicriteria framework is that the criteria/alternative AHP weights and priorities have been set according to a survey deployed in the city of Pamplona (Navarre, Spain). The survey and AHP results show the preference for the use of drone or bike distribution in city center in order to reduce social and environmental issues.

scholarly journals Analysis of Green Spaces by Utilizing Big Data to Support Smart Cities and Environment: A Case Study About the City Center of Shanghai

2020 ◽  
Vol 9 (6) ◽  
pp. 360 ◽  
Author(s):  
Qi Liu ◽  
Hidayat Ullah ◽  
Wanggen Wan ◽  
Zhangyou Peng ◽  
Li Hou ◽  
...  
Keyword(s):  
Smart Cities ◽  
Relative Difference ◽  
Green Spaces ◽  
Spatial And Temporal Patterns ◽  
City Center ◽  
The Hours ◽  
Spatiotemporal Behavior ◽  
Public Behavior ◽  
The City

Green areas or parks are the best way to encourage people to take part in physical exercise. Traditional techniques of researching the attractiveness of green parks, such as surveys and questionnaires, are naturally time consuming and expensive, with less transferable outcomes and only site-specific findings. This research provides a factfinding study by means of location-based social network (LBSN) data to gather spatial and temporal patterns of green park visits in the city center of Shanghai, China. During the period from July 2014 to June 2017, we examined the spatiotemporal behavior of visitors in 71 green parks in Shanghai. We conducted an empirical investigation through kernel density estimation (KDE) and relative difference methods on the effects of green spaces on public behavior in Shanghai, and our main categories of findings are as follows: (i) check-in distribution of visitors in different green spaces, (ii) users’ transition based on the hours of a day, (iii) famous parks in the study area based upon the number of check-ins, and (iv) gender difference among green park visitors. Furthermore, the purpose of obtaining these outcomes can be utilized in urban planning of a smart city for green environment according to the preferences of visitors.

scholarly journals The Use of Robotic Process Automation (RPA) as an Element of Smart City Implementation: A Case Study of Electricity Billing Document Management at Bydgoszcz City Hall

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 5191
Author(s):  
Andrzej Sobczak ◽  
Leszek Ziora
Keyword(s):  
Smart City ◽  
Social Issues ◽  
Smart Cities ◽  
Low Cost ◽  
Lessons Learned ◽  
Document Management ◽  
Process Automation ◽  
Robotic Process Automation ◽  
The City

Smart cities are an extremely important, multi-faceted subject, both in terms of their practical aspects and in terms of research. This is expressed, among other things, in the multitude of approaches to this concept. These approaches differ based on the emphasis placed on individual aspects: some focus more on technology, and others put more weight on social issues, while still others value sustainable development issues. Currently, an important topic of discussion about the development of the smart city—the importance of which has become even greater in the context of the COVID-19 pandemic—is the digital transformation of the city. The use of robotic process automation (RPA) tools can be a part of such a transformation, as such tools, using advanced software, enable the automation of those tasks carried out thus far by humans. Although such an approach has, to date, been widespread in the case of enterprises (in particular, those operating in the financial and BPO/SSC sectors, but less often in the utilities sector, the first applications of these solutions in the context of process automation for cities are also beginning to emerge in various parts of the world. This article is based on a case study approach. The implementation conditions (including the constraints) of such an approach, the benefits achieved, and the lessons learned (which can be important for other local government units) are outlined using the example of the Bydgoszcz city hall’s (Poland) electricity billing document management. The results of the case study presented here lead to the conclusion that the use of RPA tools enables, very quickly and at relatively low cost, measurable results to be achieved that are related to the processing of electricity billing documentation for the city of Bydgoszcz. This allows the assertion to be made that robotic process automation can be taken into consideration as one of the tools used to build smart cities.

Smart Cities and Digital Governance

2020 ◽  
pp. 87-106
Author(s):  
Mamoona Humayun ◽  
N. Z. Jhanjhi ◽  
Malak Z. Alamri ◽  
Azeem Khan
Keyword(s):  
Smart City ◽  
Urban Areas ◽  
Good Governance ◽  
Smart Cities ◽  
Low Cost ◽  
Developed Countries ◽  
Digital Governance ◽  
Smart Governance ◽  
Intelligent Security ◽  
The City

With the ubiquitous low-cost sensor devices and widespread use of IoT, the paradigm is shifted from urban areas towards a smart city. A smart city is an urban area that uses IoT technologies to collect data and manage resources efficiently. The vision is to improve the capabilities and to solve the citizens' problems (e.g., energy consumption, transportation, recycling, intelligent security, etc.) in an efficient way. A smart city is a multidimensional term including a smart economy, smart mobility, smart living, smart environment, smart people, and smart governance. Although the concept of a smart city is increasing and currently there exist many such cities in many developed countries, one of the key challenges faced by these cities is good governance. Smart cities need smart governance to run the city in a smarter way, and effective digital governance is a solution to this end. Digital governance refers to the use of digital technology in government practices.

scholarly journals Research on City Center Area System Identification and Environmental Renewal Strategy under the Background of Smart Cities

2018 ◽  
Vol 53 ◽  
pp. 04047
Author(s):  
Bing Wang ◽  
Cai Dai
Keyword(s):  
Smart Cities ◽  
Central Area ◽  
Morphological Characteristics ◽  
Urban Center ◽  
City Center ◽  
City Construction ◽  
The Times ◽  
The City ◽  
Center Area ◽  
Urban Environmental Management

In this paper, combining the development of the times and the construction of smart cities, the various identification elements of the city center area system were collated and extracted while combing the morphological characteristics of the central area of the city. Moreover, after combining these identification elements, the problems to be solved in the construction environment of the modern urban center area were analyzed. Through the analysis of the content of smart city construction and integration with the organic renewal of the urban center area, a strategic discussion has been proposed, aiming at maximizing the rejuvenation of the environmental vitality of the urban center area while adapting to modern urban environmental management.

scholarly journals Sistem Monitoring Aliran Sungai dan Lingkungan Berbasis Smart Environment di RW 03 Kelurahan Kauman Kota Malang

2021 ◽  
Vol 5 (1) ◽  
pp. 12-20
Author(s):  
Sutrisno Sutrisno ◽  
Imam Cholissodin ◽  
Arief Andy Soebroto ◽  
Muh Arif Rahman
Keyword(s):  
Technology Integration ◽  
River Flow ◽  
Security System ◽  
Smart Environment ◽  
City Center ◽  
Security Monitoring ◽  
Security Guard ◽  
High Level ◽  
Rivers State ◽  
The City

Monitoring of the rivers state and the environment of roads in the city center is often still inadequate. For example, garbage is often found in the river, while on the roads, there is still not yet a sound security system. Kauman RT 03 RW III Klojen Malang is one of the densely populated regions and is located in the center (point of zero) of Malang city at the time ago still does not have a security system or security guard and there is a river flow which is often found garbage piling up and often causes flooding when it rains heavy. Based on field conditions in Kauman and meetings with residents represented by several RT heads in RW 03 Kauman, Klojen Malang requires the use of a smart environment and CCTV technology integration. Therefore the result of dedication to society to apply CCTV's technology, so it has been used at Kauman for environmental and security monitoring. Considering the high level of the busyness of the urban at Kauman, with providing it, they can be monitoring the environment by automatically systems continuously 24 hours every day. Therefore, the system has been being able to facilitate and help people to monitor the environment and river flow to be more effective, efficient, and modern. ABSTRAKMonitoring keadaan sungai dan lingkungan ruas jalan pada masyarakat tengah kota seringkali masih belum memadai. Di aliran sungai misalnya, masih sering dijumpai sampah yang menumpuk, sedangkan di ruas jalan masih belum dijumpai sistem keamanan yang baik. Kampung Kauman RT 03 RW III kecamatan Klojen Kota Malang merupakan salah satu kampung yang padat penduduk dan berada di pusat (titik nol) kota saat ini belum memiliki sistem keamanan ataupun satpam dan terdapat aliran sungai yang seringkali dijumpai sampah menumpuk bahkan sering menyebabkan banjir bila hujan deras. Berdasarkan kondisi lapangan di kampung Kauman dan pertemuan dengan warga yang diwakili oleh beberapa ketua RT di wilayah RW 03 Kauman yang membutuhkan pemanfaatkan integrasi teknologi smart environment dan teknologi CCTV. Hasil kegiatan pengabdian masyarakat telah dapat secara optimal dimanfaatkan untuk memenuhi kebutuhan pengawasan ataupun monitoring lingkungan tersebut. Mengingat tingkat kesibukan masyarakat perkotaan yang tinggi, dengan adanya sistem monitoring mereka dapat mengambil manfaat besar dengan dikembangkannya sistem pengawasan aliran sungai dan lingkungan yang bisa bekerja secara otomatis dan kontinyu selama 24 jam. Sistem yang dibuat telah mampu memudahkan sekaligus membantu masyarakat untuk monitoring lingkungan dan aliran sungai secara lebih efektif, efisien, dan modern. 

scholarly journals Multicriteria decision making approach as a tool for street network re-design in the city of Bitola, North Macedonia

2019 ◽  
Vol 65 (2) ◽  
pp. 1-5
Author(s):  
Jasmina Bunevska Talevska ◽  
Marija Malenkovska Todorova
Keyword(s):  
Urban Form ◽  
Smart Cities ◽  
Multicriteria Decision Making ◽  
Assessment Procedure ◽  
Urban Mobility ◽  
Urban Network ◽  
Sustainable Urban Mobility ◽  
Pedestrian Crossing ◽  
The City

The current urban planning principles are based on the renewal and use of the cities’ available potentials, with the aim of their sustainable urban mobility development. Today, according to the literature, there is no doubt that urban reconstruction is a much better direction for the development of smart cities since numerous challenges threaten the ability of cities to become viable pillars of sustainable development. The main objective of this paper is to adopt recently developed methodology for the analysis and selection of pedestrian crossing types on the case study location example regarding first phase on sustainable urban mobility plan development for the Municipality of Bitola, North Macedonia, as well as to underline the principles and assessment procedure for the re-design of urban network in Bitola as a sustainable urban form.

scholarly journals Dzsentrifikáció Szöul belvárosában– Cshonggjecshon

2021 ◽  
Vol 145 (1) ◽  
pp. 32-49
Keyword(s):  
Local Communities ◽  
Economic Damage ◽  
Turn Of The Millennium ◽  
City Center ◽  
The Road ◽  
Historic Center ◽  
One Step ◽  
The Cost ◽  
The City

Until the mid-20th century, the historic center of Seoul was divided by a stream in a west-east direction. By the 1950s, the water of the stream had become so polluted that only the full coverage of it could solve the resulting problems. An elevated highway was built in its place. At the turn of the millennium, as part of the rehabilitation of the district, the former creek was excavated, the road demolished and an artificial natural environment created. Although the reconstruction was intended to strengthen the historic character of the city center, the artificial watercourse and the emphasized role of tourism discredited the project to socially-minded critics. In this study, we present all of this, but go one step further and interpret the socio-economic damage resulting from the disintegration of local communities in the working-class neighborhood that has develop dover the decades as the cost of renewal.

Determination of hygroscopic aerosol growth based on the OPC-N3 counter

2021 ◽  
Author(s):  
Katarzyna Nurowska ◽  
Grzegorz Florczyk ◽  
Agata Han ◽  
Michał Chiliński ◽  
Krzysztof Markowicz
Keyword(s):  
Growth Factor ◽  
Relative Humidity ◽  
Low Cost ◽  
City Center ◽  
Hygroscopic Properties ◽  
Particle Matter ◽  
First Results ◽  
The University ◽  
The City

<p>In this study the OPC-N3 low-cost particle matter counter was used to determine the hygroscopic properties of the aerosol. The work shows the first results of aerosol hygroscopicity conducted in Poland. The study was performed during Spring 2020 (lock-down period) and Winter 2020/2021. The research was conducted in the Geophysics Institute at the University of Warsaw, close to the city center. </p><p>Two OPC-N3 sensors were connected to the outlet from two legs of the Aerosol Conditioning System ACS1000. In one of them, low relative humidity was kept at the level of 20%, and in the other, the relative humidity was changed in the range of 50-90% in cycles.</p><p>The calculation of growth factor was done by dividing the PM1 measured from wet pipe by PM1 measured in the dry channel. The hygroscopicity parameter κ was calculated from κ-Köhler theory, showing a fluctuation of the κ parameter which depends on aerosol type.</p><p>The variability of κ during Spring was ranging from values of 0.075 up to 0.437 (growth factor range 1.294 – 2.625).  The observed κ for Winter oscillates between 0.018 - 0.077 (growth factor range 1.057 – 1.246). The values of hygroscopicity of aerosol in winter are smaller than the ones corresponding to Spring, in line with respect to previous literature reports.</p><p>The study shows possibility to use OPC-N3 for calculation of the hygroscopic properties of the aerosol, however it means that the measurements of PM done by OPC-N3 can be biased by high relative humidity.</p>

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