A feasibility study for the locations of waste transfer stations in urban centers: a case study on the city of Nashik, India

2016 ◽  
Vol 126 ◽  
pp. 191-205 ◽  
Author(s):  
Vinay Yadav ◽  
Subhankar Karmakar ◽  
A.K. Dikshit ◽  
Shivkumar Vanjari
Keyword(s):  
Feasibility Study ◽  
Urban Centers ◽  
Waste Transfer ◽  
Transfer Stations ◽  
The City

scholarly journals Parking Places to Moped-Style Scooter Sharing Services Using GIS Location-Allocation Models and GPS Data

2021 ◽  
Vol 10 (4) ◽  
pp. 230
Author(s):  
Onel Pérez-Fernández ◽  
Juan Carlos García-Palomares
Keyword(s):  
Global Positioning System ◽  
Catchment Area ◽  
Public Spaces ◽  
Gps Data ◽  
Positioning System ◽  
Urban Centers ◽  
Location Allocation ◽  
Global Positioning ◽  
The City

Moped-style scooters are one of the most popular systems of micro-mobility. They are undoubtedly good for the city, as they promote forms of environmentally-friendly mobility, in which flexibility helps prevent traffic build-up in the urban centers where they operate. However, their increasing numbers are also generating conflicts as a result of the bad behavior of users, their unwarranted use in public spaces, and above all their parking. This paper proposes a methodology for finding parking spaces for shared motorcycle services using Geographic information system (GIS) location-allocation models and Global Positioning System (GPS) data. We used the center of Madrid and data from the company Muving (one of the city’s main operators) for our case study. As well as finding the location of parking spaces for motorbikes, our analysis examines how the varying distribution of demand over the course of the day affects the demand allocated to parking spaces. The results demonstrate how reserving a relatively small number of parking spaces for scooters makes it possible to capture over 70% of journeys in the catchment area. The daily variations in the distribution of demand slightly reduce the efficiency of the network of parking spaces in the morning and increase it at night, when demand is strongly focused on the most central areas.

Characteristics and Hazard of the Wastewater from the City Garbage Transfer Stations

2014 ◽  
Vol 955-959 ◽  
pp. 2919-2925
Author(s):  
Qing Wang ◽  
Wen Yu Zhao ◽  
Bang Ding Ma ◽  
Yu Wu ◽  
Kang Huai Liu
Keyword(s):  
Membrane Separation ◽  
Sewage Treatment ◽  
Toxic Heavy Metals ◽  
High Concentration ◽  
Average Value ◽  
Urban Sewage ◽  
Waste Transfer ◽  
Wastewater Samples ◽  
Transfer Stations ◽  
The City

Nine wastewater samples of waste transfer stations had been gathered and analysis in Guilin city. The results indicate that all sewage belongs to high concentration organic wastewater originating from the waste transfer stations. The average value of wastewater’s COD is 5759mg/L and the maximum value is nearly 28000 mg/L. Its organic pollutants are mainly related to the residues of animals and plants. The content of lead(Pb), Chromium (Cr) and other toxic heavy metals in the wastewater could be 10 times higher than emissions standards, and especially total phosphorus’(TP) content could reach to more than 20 times of discharge standard. In order to protect the environmental quality in the vicinity of them and normally operating of the urban sewage treatment plants, it is necessary that these wastewater should be treated alone. A proposal is that integrated equipment should be made by using some technologies combined biology with membrane separation. Through disperse treatment by the equipment, urban sewage transfer stations could be reused or discharged on standard.

scholarly journals Building Preservation Case Study of Pancasila Building in Pasuruan City

2021 ◽  
Vol 04 (08) ◽  
Author(s):  
Prof. Dr. Lalu Mulyadi ◽  
Keyword(s):  
Urban Development ◽  
Feasibility Study ◽  
Descriptive Analysis ◽  
Field Observations ◽  
City Development ◽  
Aesthetic Value ◽  
History Of ◽  
The Aesthetic ◽  
The City

Some cities in Indonesia have a long history of city development, in East Java, for example the cities of Surabaya, Malang, Blitar, Kediri and Pasuruan are cities that have a history of urban development that still maintains the identity of the city. old buildings or colonial buildings, these buildings can still be suspected through the characteristics of building shapes and the use of ornaments that are characterized by European buildings. For this European building to be preserved, it is necessary to conduct a feasibility study of the aesthetic value contained in the building. The case study taken in writing this article is the Pancasila Building in the city of Pasuruan. The method used is descriptive analysis topically. To support the discussion in this article, field observations and literature studies were conducted. The findings in this study were to determine the physical identity of the building and the meaning of building ornaments.

Multi-Objective Optimization for Skip-Stop Strategy Based on Smartcard Data Considering Total Travel Time and Equity

2021 ◽  
pp. 036119812110130
Author(s):  
Sang-Wook Han ◽  
Eun Hak Lee ◽  
Dong-Kyu Kim
Keyword(s):  
Travel Time ◽  
Programming Model ◽  
Mixed Integer ◽  
Average Deviation ◽  
Multi Objective ◽  
Nonlinear Programming Model ◽  
Total Travel Time ◽  
Transfer Stations ◽  
The City

With the rise of urban sprawl, urban railways extend out further to the city’s outer district, installing additional stations. Passengers who travel from the outer district to the center of the city therefore experience long travel times. Although skip-stop strategy helps save total travel time, deviation of travel time among all origin–destination pairs may be increased, leading to equity problems. This study aims to minimize the inequity and total travel time through train stop planning and train scheduling. A coefficient of variation is adopted as a measure of inequity. The problem is formulated as a multi-objective mixed integer nonlinear programming model. Origin–destination demand is extracted from smartcard data and a case study of four urban railway lines in Seoul is conducted. The results indicate that the number of transfer stations for equity-oriented skip-stop strategy is smaller than that for total-travel-time-oriented skip-stop strategy. We also discover that as the number of transfer stations rises, inequity increases and total travel time is reduced. For skip-stop strategy considering total travel time and equity simultaneously, average total travel time and the average deviation are reduced by up to 10.3% and 10.6%, respectively, compared with those of all-stop strategy. We analyze the gradient of Pareto optimal sets to find out which factors (equity or total travel time) are more significant. Skip-stop strategy on lines 5 and 9 can be designed based on equity, while line 4 can be planned based on total travel time.

scholarly journals Imaginarios urbanos en áreas protegidas de la ciudad de Mar del Plata, Argentina

2021 ◽  
pp. 185-204
Author(s):  
María Belén Loyza ◽  
Ignacio Mariano Azcue Vigil
Keyword(s):  
Protected Areas ◽  
Urban Areas ◽  
Buenos Aires ◽  
Nature Management ◽  
Urban Centers ◽  
Public And Private ◽  
Secondary Information ◽  
The City ◽  
Urban Places

Las reservas naturales dentro de las áreas urbanas brindan servicios ecosistémicos a la población y son de gran importancia para lograr la sostenibilidad urbana. El objetivo del presente artículo es analizar cómo estas áreas protegidas son comprendidas por los habitantes de la ciudad, tomando como caso de estudio la Reserva Natural Puerto Mar del Plata (RNPMdP) y la Reserva Forestal Bosque Peralta Ramos (BPR), ambas pertenecientes al partido de General Pueyrredon (Buenos Aires, Argentina). Con la finalidad de recuperar aquellos imaginarios urbanos que guían las prácticas de las personas, se recurre a fuentes de información primaria y secundaria, como entrevistas en profundidad y documentos oficiales, utilizando una metodología cualitativa de investigación. El miedo asociado a la naturaleza “salvaje”, la búsqueda de control y orden, la tranquilidad de alejarse de los centros urbanos y refugiarse en lugares del periurbano y las diferentes percepciones sobre la gestión en espacios públicos y privados de naturaleza urbana son algunos de los imaginarios abordados. Tomando en cuenta los problemas de conservación que enfrentan las áreas protegidas urbanas, estudiar cómo son comprendidas es necesario para una correcta gestión ambiental urbana.   Abstract Nature reserves within urban areas provide ecosystem services to the population. They have great importance to achieve urban sustainability. The objective of this article is to analyze how these protected areas are understood by the inhabitants of the city, taking as a case study two reserves located in general Pueyrredon, Buenos Aires, Argentina: “Reserva Natural Puerto Mar del Plata” and “Reserva Forestal Bosque Peralta Ramos”. In order to recover the urban imaginaries that guide the practices of people, the research bases on aqualitative research methodology, employing primary and secondary information sources, such as in-depth interviews and official documents. The fear associated with the “wild” nature, the search for control and order, the tranquility of moving away from urban centers and taking refuge in peri-urban places and the different perceptions about urban nature management in public and private spaces are some of the imaginary addressed. Taking into consideration the conservation problems faced by urban protected areas, it is important to study how these spaces are understood, for proper urban environmental management.

The Case of Region Marketing of a Greek Southwestern City

2012 ◽  
pp. 1-20
Author(s):  
George S. Spais
Keyword(s):  
Transformative Learning ◽  
Open Innovation ◽  
Digital City ◽  
Short Term ◽  
Urban Centers ◽  
Creative City ◽  
Municipal Broadband ◽  
Municipal Administrators ◽  
The City

The examination of the municipal broadband and building a “digital city” for a southwestern Greek city is the heart of this case study in terms of city’s repositioning through open innovation and creativity. The paradigm of the first successful Greek digital city (“e-Trikala”) shows to every Greek that the Digital City ICT applications can improve everyday life by simplifying public transactions in regional urban centers, reducing telecommunication costs, and by delivering new services related to the local way of life (Heeks, 2010). However, every SME has its own social, economic, geographic, or political characteristics (Foster & Heeks, 2010). For this reason, the digital city can vary from region to region, so that ICT applications enhance local characteristics rather than detract from them. The author’s objective is to create an independent case study that can be used as the basis for class discussion. The case of repositioning of Kalamata, a Greek southwestern city, as an open innovative and creative city through the new municipal broadband infrastructure presents a situation that requires the readers of this case study to develop and evaluate solutions. The case may be also meaningfully discussed, presented, or analyzed with reference to other cases. It can be used by itself without creating false impressions. In this case study, Kalamata’s municipal leadership believes that a short-term promotion campaign for the benefit of the city’s digitalization is enough to build a new image and personality for the city: the image and personality of an open, innovative, and creative city, an ideal location to visit, do business, and live. The development of a short-term promotion campaign in order to achieve the repositioning of a city is a major strategic pitfall. The municipal leaders must realize that transforming the city as an open innovative and creative city, needs a new philosophy. The achievement of such a strategic goal prerequires an overall transformation of all the protagonists (from citizens to municipal administrators to entrepreneurs) as the following strategic issues must be managed: the introduction of an open innovation model, the choice of an innovation scenario for the local economy, and the strategy in order to address the way of urban innovation through the municipal broadband infrastructure. However, the question remains whether transformative learning and building critical reflection are the paths for building a new image and personality for Kalamata as an open innovative and creative city.

scholarly journals Crushing and screening complex for the production of compost from organic components of municipal solid waste

2021 ◽  
Vol 264 ◽  
pp. 01026
Author(s):  
Tavbay Khankelov ◽  
Zokir Maksudov ◽  
Nafisa Mukhamedova ◽  
Shavkat Tursunov
Keyword(s):  
Organic Waste ◽  
Raw Materials ◽  
Experimental Studies ◽  
Lower Surface ◽  
Rotor Blades ◽  
Household Waste ◽  
Material Consumption ◽  
Waste Transfer ◽  
Transfer Stations ◽  
The City

The existing technology for processing solid household waste (MSW) at waste transfer stations in the city of Tashkent does not allow obtaining high-quality raw materials for compost production. In this regard, a crushing and screening complex has been developed to produce compost with low energy and material consumption. The carried out theoretical and experimental studies made it possible to determine that the rotor blades should be installed along the rotor line with an angle equal to zero degrees. To overcome the resistance arising between the bottom of the crusher and the lower surface of the rotor, several holes with a diameter of 12 mm are drilled on the bottom of the crusher in the radial direction. It was found that the rotational speed of the electric motor of the crusher, as well as the sorting device, is 1500 min-1, the angle of impact of organic waste on the rotor blades of the sorting device is approximately 45 degrees. The use of a crushing and screening complex made it possible to effectively grind and extract ballast inclusions from the composition of crushed organic waste by 85-90 percent.

scholarly journals URBAN TRACES: revitalization strategies for abandoned villages.

2017 ◽  
Author(s):  
Letizia Gorgo ◽  
Gloria Riggi
Keyword(s):  
Urban Morphology ◽  
Research Purpose ◽  
Urban Centers ◽  
Existing Building ◽  
Santo Stefano ◽  
Historical Identity ◽  
Main Component ◽  
The City ◽  
E Mail

Letizia Gorgo¹, Gloria Riggi² ¹Dipartimento di Architettura e progetto. Dottorato in Architettura e costruzione, Sapienza, Università di Roma, Via Gramsci, 53. 00197 Roma ² Dipartimento di Architettura e progetto. Dottorato in Architettura e costruzione, Sapienza, Università di Roma, Via Gramsci, 53. 00197 Roma E-mail: [email protected], [email protected], Keywords : abandoned villages, urban morphology, scattered hotel, existing fabric, revitalization strategies Conference topics and scale: City transformations       In Italy today, one can count more than 6000 villages that have been abandoned(deserted) for a variety of causes. This negletc state produces a serious problem related to a wider phenomenon of abandonment of entire portions of italian territories. Realities that differ form the city because of their morphology: Does urban shape represent an urban limit? or is it an alternative testimony to the city? Research purpose is to understand how relationship, between these cases and the territory, works; in particular during the absence of the main component: the human one. The case study Santo Stefano di Sessanio, an ancient village in the center of Italy, inhabited until 90's, shows how the examination of urban shape represents the potentiality of his own revitalization. By relating his historical identity to the scattered hotel projectual approach, it contributes to combine conservation, valorization and sustainability of the existing building fabric, in order to claim the authenticity of these villages declaring their own autonomy and dimension to major urban centers polarization. In this example transformation is meant as conscious project that grow up from the built reality not from the project itself, transformation as knowledge of urban facts, tool to approach to the structure of this reality.   References Rossi A., (1966 ) ‘L’architettura della città’, Quodlibet, Macerata Muratori S., (1967) ‘Civiltà e territorio’, Centro studi di storia e urbanistica, Roma Cartei, G. F., (2007) ‘Convenzione europea del paesaggio e governo del territorio’, Il Mulino, Bologna Caravaggi L.,  (2014) ‘La montagna resiliente’, Quodlibet, Macerata, Strappa, G., Carlotti, P., Camiz, A., (2016) ‘Urban Morphology and Historical Fabrics’, Gangemi Editore, Rome

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