scholarly journals Application of a prefeasibility study methodology in the selection of road infrastructure projects

DYNA ◽  
2016 ◽  
Vol 82 (194) ◽  
Author(s):  
Diego Alexander Escobar Garcia
Keyword(s):  
Adverse Effects ◽  
Life Span ◽  
Road Traffic ◽  
Urban Transformation ◽  
Construction Costs ◽  
Study Methodology ◽  
The City ◽  
Traffic Simulations ◽  
Transformation Processes ◽  
Selection Of

<p>Major cities in Colombia are currently generating urban transformation processes that involve the construction of major infrastructures, mainly looking to mitigate the adverse effects of the ever- increasing road traffic. In addition, intermediate cities make great efforts when it comes to urban planning thus, promoting the application of prefeasibility study methodologies to make the appropriate decisions regarding the infrastructures to be built in specific places of the city. This paper discusses the results after applying a prioritization methodology as a comparative tool between two possible road infrastructures in the area of San Marcel in the city of Manizales, Colombia. The best proposal is selected based on the best coverage indicators and variables such as overall construction costs and life span which were determined from information generated in traffic simulations.</p>

scholarly journals Application of a prefeasibility study methodology in the selection of road infrastructure projects: The case of Manizales (Colombia)

DYNA ◽  
2015 ◽  
Vol 82 (194) ◽  
pp. 204-213
Author(s):  
Diego Alexander Escobar Garcia ◽  
Camilo Younes-Velosa ◽  
Carlos Alberto Moncada-Aristizábal
Keyword(s):  
Adverse Effects ◽  
Life Span ◽  
Road Traffic ◽  
Urban Transformation ◽  
Construction Costs ◽  
Study Methodology ◽  
The City ◽  
Traffic Simulations ◽  
Transformation Processes ◽  
Selection Of

Major cities in Colombia are currently generating urban transformation processes that involve the construction of major infrastructures, which mainly look to mitigate the adverse effects of ever-increasing road traffic. In addition, intermediate cities have made great efforts when it comes to urban planning and promote the application of prefeasibility study methodologies to make the appropriate decisions regarding the infrastructures to be built in specific places in the city. This paper discusses the results after applying a prioritization methodology as a comparative tool between two possible road infrastructures in the area of San Marcel in the city of Manizales, Colombia. The best proposal is selected based on the best coverage indicators and variables such as overall construction costs and life span: determined from information generated in traffic simulations.

scholarly journals The Four Axes of Palermo’s Commerce: a Geographical Perspective

2021 ◽  
pp. 165-174
Author(s):  
Giovanni Messina ◽  
Gaetano Sabato
Keyword(s):  
Urban Landscape ◽  
Business Owners ◽  
Urban Transformation ◽  
City Center ◽  
Economic Changes ◽  
Economic Relations ◽  
Urban Pattern ◽  
Geographical Perspective ◽  
The City ◽  
Transformation Processes

Commercial dynamics within a city represent an excellent observatory desk to study urban transformation processes. These dynamics reflect the verticality and horizontality relational system, but also the exchanges and reciprocation of the cultural and socio-economic relations. From a geographical perspective it is interesting to detect cultural, social and economic changes both permanent and in evolution which constitute the urban pattern and shape its viability. This work originates in 2015 within the PRIN project (Relevant Interest National Project) “Commerce, consumption and the city: practices, planning and governance for urban inclusion, resilience and sustainability” which has studied some relevant commerce dynamics in Italian main cities. Here we focus on the case of Palermo, by analysing four important streets in the city center: via Maqueda, via Ruggero Settimo, viale della Libertà and via Lincoln. They represent significant cut outs of how consumers’ habits have developed in Palermo and have strongly characterized the present urban landscape by establishing a complex network of relations which shape the pattern of the city. By employing both a diacronical and synchronical approach, on one hand we analyse the evolution of the four axes. On the other hand, we illustrate the results of the research carried out by using questionnaires aimed to reveal the present conditions of the shops taking place through the business owners’ perception.

Urban Transformation in the City of Riyadh: A Study of Plural Urban Identity

2013 ◽  
Vol 38 (4) ◽  
pp. 70-79
Author(s):  
Mashary A. Al Naim
Keyword(s):  
Twentieth Century ◽  
Saudi Arabia ◽  
Urban Development ◽  
Urban Environments ◽  
Urban Transformation ◽  
Urban Identity ◽  
Main Challenge ◽  
The City ◽  
Transformation Processes

Riyadh, the capital of Saudi Arabia, has been witnessing rapid urban transformation processes during the 20th century, which have had various kinds of impact on the evolution of its urban identity. This paper therefore attempts to investigate how the new urban concepts, which were introduced by modernization and globalization, caused a conflict of identities and how this has resulted in dividing Riyadh into opposing urban entities. The main challenge in establishing a cohesive urban identity in Riyadh is based on the long-term conflict between traditional forms of urbanism and modern ways of urban development. The paper thus investigates the urban transformation of Riyadh from the beginning of the twentieth century until the present day. The main objective of this historic analysis is to capture the various ways inhabitants have perceived surrounding urban environments and how this has been influencing urban planning activities. The applied methodologies include the evaluation of historic documents, such as official reports and plans.

scholarly journals The directors of urban transformation: The case of Oslo

2020 ◽  
Vol 35 (7) ◽  
pp. 695-713
Author(s):  
Bengt Andersen ◽  
Hannah Eline Ander ◽  
Joar Skrede
Keyword(s):  
Urban Development ◽  
Urban Areas ◽  
Social Economic ◽  
Urban Transformation ◽  
Positive Outcomes ◽  
Political Responsibility ◽  
Local Transformation ◽  
The Social ◽  
The City ◽  
Transformation Processes

We investigate the urban transformation strategies of major developers and other key actors in the context of neoliberalism and its influence on politics, including urban development governance. Drawing primarily on interviews with corporate developers operating in the downtown areas of Oslo, Norway, we show how these influential actors with little formal political responsibility not only shape the physical structures but also significantly influence the social, economic and cultural fabric of the city. While they do not have a coordinated strategy, private developers do aim to transform urban areas to fit the preferences of the middle and upper classes. However, the situation is not as negative and predetermined as many critiques of gentrification processes assume. Besides demonstrating some positive outcomes of local transformation processes, our study shows that a fully gentrified downtown, along with the social exclusion mechanisms, has not been implemented yet.

A Selection of Bandung City Travel Route Using The FLOYD-WARSHALL Algorithm

2020 ◽  
Vol 12 (7) ◽  
Author(s):  
Muhammad Ghifari Arfananda ◽  
◽  
Surya Michrandi Nasution ◽  
Casi Setianingsih ◽  
◽  
...  
Keyword(s):  
Traffic Congestion ◽  
Rapid Development ◽  
Route Selection ◽  
Tourist Attractions ◽  
Tourist Destinations ◽  
A Value ◽  
Distance Data ◽  
Simple Additive Weighting ◽  
The City ◽  
Selection Of

The rapid development of information and technology, the city of Bandung tourism has also increased. However, tourists who visit the city of Bandung have problems with a limited time when visiting Bandung tourist attractions. Traffic congestion, distance, and the number of tourist destinations are the problems for tourists travel. The optimal route selection is the solution for those problems. Congestion and distance data are processed using the Simple Additive Weighting (SAW) method. Route selection uses the Floyd-Warshall Algorithm. In this study, the selection of the best route gets the smallest weight with a value of 5.127 from the Algorithm process. Based on testing, from two to five tourist attractions get an average calculation time of 3 to 5 seconds. This application is expected to provide optimal solutions for tourists in the selection of tourist travel routes.

scholarly journals The European Green Capital Award—Is It a Dream or Reality for Belgrade (Serbia)?

2021 ◽  
Vol 13 (11) ◽  
pp. 6182
Author(s):  
Marijana Pantić ◽  
Saša Milijić
Keyword(s):  
Urban Transformation ◽  
The Other ◽  
Transmission Of Knowledge ◽  
Current State ◽  
Transitional Countries ◽  
Great Hope ◽  
Environmentally Responsible ◽  
Potential Benefits ◽  
The City ◽  
Insight Into

An agreement of cooperation and transmission of knowledge regarding the nomination for the European Green Capital Award (EGCA) was signed between the mayors of Belgrade and Ljubljana (EGCA 2016 winner) in September 2018. The candidacy of Belgrade was finally realized in October 2019. Great hope was placed in this endeavour because internationally recognized awards, such as the EGCA, represent enormous capital for both the city and the state. The EGCA requires serious preparation and significant fulfilment of preconditions. Many economically strong and environmentally responsible cities competed for the award, but did not win. On the other hand, the capital of Serbia does not appear to be an obvious winning candidate, especially as it is differentiated from the previous winners by being a non-EU city and by the fact that it is still undergoing an intense urban transformation, characteristic of transitional countries. Therefore, the main aim of this article is to present a review of the current state of Belgrade’s environmental qualities and its comparison with the EGCA criteria and with Grenoble as one of the winning competitors. The article gives a full overview of the EGCA requirements with certain details on required indicators, gives relevant insight into the procedure, which could be of use for any future candidacy, and discusses potential benefits for winners, losers and repeat candidacies.

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.

scholarly journals Extracting Road Traffic Volume in the City before and during covid-19 through Video Remote Sensing

2021 ◽  
Vol 13 (12) ◽  
pp. 2329
Author(s):  
Elżbieta Macioszek ◽  
Agata Kurek
Keyword(s):  
Travel Behavior ◽  
Traffic Management ◽  
Road Traffic ◽  
Traffic Volume ◽  
The Road ◽  
Traffic Characteristics ◽  
Annual Average Daily Traffic ◽  
On The Road ◽  
The Impact ◽  
The City

Continuous, automatic measurements of road traffic volume allow the obtaining of information on daily, weekly or seasonal fluctuations in road traffic volume. They are the basis for calculating the annual average daily traffic volume, obtaining information about the relevant traffic volume, or calculating indicators for converting traffic volume from short-term measurements to average daily traffic volume. The covid-19 pandemic has contributed to extensive social and economic anomalies worldwide. In addition to the health consequences, the impact on travel behavior on the transport network was also sudden, extensive, and unpredictable. Changes in the transport behavior resulted in different values of traffic volume on the road and street network than before. The article presents road traffic volume analysis in the city before and during the restrictions related to covid-19. Selected traffic characteristics were compared for 2019 and 2020. This analysis made it possible to characterize the daily, weekly and annual variability of traffic volume in 2019 and 2020. Moreover, the article attempts to estimate daily traffic patterns at particular stages of the pandemic. These types of patterns were also constructed for the weeks in 2019 corresponding to these stages of the pandemic. Daily traffic volume distributions in 2020 were compared with the corresponding ones in 2019. The obtained results may be useful in terms of planning operational and strategic activities in the field of traffic management in the city and management in subsequent stages of a pandemic or subsequent pandemics.

Mitigation of road traffic crash hazard in Pakistan

2014 ◽  
Vol 23 (5) ◽  
pp. 567-585
Author(s):  
Muhammad Masood Rafi ◽  
Ashar Hashmat Lodi ◽  
Muhammad Arsalan Effendi
Keyword(s):  
Road Traffic ◽  
Evaluation Model ◽  
Road Traffic Crash ◽  
Potential Hazard ◽  
Suggested Model ◽  
Male Population ◽  
Content Type ◽  
The Road ◽  
On The Road ◽  
The City

Purpose – Road traffic crashes (RTCs) result in creating significant social and economic hazard for affectees, their families and society. The purpose of this paper is to present studies which were conducted to study the patterns of RTCs in Karachi which is a metropolitan city of Pakistan. The studies were conducted on one of the busiest roads in the city named as Shara-e-Faisal. The influence and contribution of different factors in RTCs has been studied and hazardous road sections of Shara-e-Faisal have been identified. Based on the data analysis, an evaluation model has been suggested to reduce the hazard of RTCs on Shara-e-Faisal. The objective of the presented studies is to increase the present level of safety of road travel by reducing crashes on Shara-e-Faisal. Design/methodology/approach – Existing data of RTCs in Karachi have been analysed for the presented studies. For this purpose, Shara-e-Faisal was divided in sections of 1 km length to study the vehicle crash pattern. Location surveys were conducted to record physical conditions of this road. A cluster analysis was carried out to identify hazardous sections of the road. An evaluation model has been suggested in the end to reduce the hazard of RTCs by identifying hazardous road sections of Shara-e-Faisal. Findings – The analysis of the data revealed that the crashes were higher over weekend and on Monday. Male population, particularly young people, and motorcycle riders were the largest affectees of RTCs. In general, more daytime crashes were recorded as compared to nighttime crashes. The crashes in the mid block of the road and those involving rear-end collisions were higher. The hazardous road locations were related to poor road conditions. Statistical analysis indicated that alternate routes were required to reduce the RTC hazard on Shara-e-Faisal. Research limitations/implications – The paper is a small, but an original, contribution to identify a potential hazard which is faced by the community in the city. This is the first attempt (to the best of authors’ knowledge) to address the issue of RTCs in Karachi from an engineering view point. Practical implications – The suggested model can be employed by the authorities as a guideline to mitigate the hazard of road crashes in the country. Originality/value – The paper provides valuable information on the road traffic incidents, their pattern and contributing factors in one of the largest metropolis of Pakistan. The suggested model can become helpful in reducing RTCs in Pakistan.

scholarly journals Carnavalesk taalgebruik en de constructie van lokale identiteiten

2012 ◽  
Vol 1 (1) ◽  
pp. 15-40 ◽  
Author(s):  
Leonie M.E.A. Cornips ◽  
Vincent de Rooij ◽  
Irene Stengs
Keyword(s):  
Interdisciplinary Approach ◽  
Integrated Analysis ◽  
Cultural Elements ◽  
Language And Culture ◽  
Norms And Values ◽  
Southern Netherlands ◽  
Interdisciplinary Study ◽  
The City ◽  
Selection Of

This article aims to encourage the interdisciplinary study of ‘languaculture,’ an approach to language and culture in which ideology, linguistic and cultural forms, as well as praxis are studied in relation to one another. An integrated analysis of the selection of linguistic and cultural elements provides insight into how these choices arise from internalized norms and values, and how people position themselves toward received categories and hegemonic ideologies. An interdisciplinary approach will stimulate a rethinking of established concepts and methods of research. It will also lead to a mutual strengthening of linguistic, sociolinguistic, and anthropological research. This contribution focuses on Limburg and the linguistic political context of this Southern-Netherlands region where people are strongly aware of their linguistic distinctiveness. The argument of the paper is based on a case study of languaculture, viz. the carnivalesque song ‘Naar Talia’ (To Italy) by the Getske Boys from the city of Heerlen.

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