scholarly journals Projection of material flows and stocks in the urban transport sector until 2050 – A scenario-based analysis for the city of Vienna

2021 ◽  
pp. 127591
Author(s):  
Andreas Gassner ◽  
Jakob Lederer ◽  
Gerald Kovacic ◽  
Ursula Mollay ◽  
Christof Schremmer ◽  
...  
2021 ◽  
Author(s):  
Corinna Peters

This study assesses changes in mobility behaviour in the City of Barcelona due the COVID‐19pandemic and its impact on air pollution and GHG emissions. Urban transport is an important sourceof global greenhouse gas (GHG) emissions. Improving urban mobility patterns is therefore crucial formitigating climate change. This study combines quantitative survey data and official governmentdata with in‐depth interviews with public administration officials of the City. Data illustrates thatBarcelona has experienced an unprecedented reduction in mobility during the lockdown (a 90%drop) and mobility remained at comparatively low levels throughout the year 2020. Most remarkableis the decrease in the use of public transport in 2020 compared to pre‐pandemic levels, whereas roadtraffic has decreased to a lesser extent and cycling surged at times to levels up to 60% higher thanpre‐pandemic levels. These changes in mobility have led to a radical and historic reduction in airpollution, with NO2 and PM10 concentration complying with WHO guidelines in 2020. Reductions inGHG emissions for Barcelona’s transport sector are estimated at almost 250.000 t CO2eq in 2020 (7%of the City’s overall annual emissions). The study derives policy implications aimed at achieving along‐term shift towards climate‐friendlier, low‐emission transport in Barcelona, namely how torecover lost demand in public transport and seize the opportunity that the crisis brings for reform byfurther reducing road traffic and establishing a 'cycling culture' in Barcelona, as already achieved inother European cities.


2019 ◽  
Vol 11 (4) ◽  
pp. 559-575
Author(s):  
Bencherif Houria ◽  
Boubakour Farès

Purpose The Algerian transport sector has undergone profound changes in recent decades with its privatization. Transport sector liberalization has achieved its primary objectives aimed at increasing public transport supply, but it has been accompanied by travel conditions deterioration because of public regulation insufficiency. For this, the Algerian State has put regulatory and institutional mechanisms to improve urban transport service quality. These mechanisms directly impose on operators and managers of transport means reception stations to meet the expectations of road users. The purpose of this study is to draw a portrait of the service quality of the Algerian urban transport. For this, a fieldwork was carried out in Batna city to know the degree of satisfaction of urban transport users toward the service offered. Design/methodology/approach In this work, the authors used questionnaires as a means of data collection. The study sample is composed of 102 users of the line. The questionnaire deals with personal data (age, sex, level of education, family and professional data), data on the nature of travel between the city of Batna and Tazoult (reasons for travel, travel time and the number of trips undertaken) and measure of user satisfaction on the Tazoult–Batna line according to the criteria of service offer, accessibility, information, duration, attention to the customer, comfort, security and environmental impact. In this work, participatory observation was also used to give a better understanding on how the urban network operates in the city. To this end, an observation grid with key questions has been prepared. It is concentrated on three axes: the actual organization of private operators providing urban bus transport, the state of buses, stations and stopping points and the practice of control by the services concerned. For this, trips were made on all urban lines during the study period. Discussions were conducted with some private operators to find out their positions and their roles in the operation of urban bus transport. Findings The results of this work show that satisfaction levels were average for transport supply, accessibility, duration, attention paid to customer, comfort and safety; however, they were low concerning information and environmental impact. The present work has made it possible to highlight the impacts of urban transport disorganization on the offered service. In addition, taking into account the expectations of users in terms of service quality should have positive impacts for the users themselves, for private and public operators and for urban transport managers. Originality/value This work presents a state of knowledge on the service quality in an urban environment and delivers information on the situation in Algeria without pretending to be exhaustive. However, the contribution of this study is not limited to the evaluation of the various criteria themselves, which are found in whole or in part in many studies devoted to this kind of evaluations. The real contribution of this work lies in highlighting the impacts of urban transport disorganization on the offered services quality. This disorganization is essentially characterized by a weakness or absence of an institutional framework and the multiplication of actors at different levels of intervention, which creates overlapping responsibilities or organizational gaps.


Author(s):  
José van

Platformization affects the entire urban transport sector, effectively blurring the division between private and public transport modalities; existing public–private arrangements have started to shift as a result. This chapter analyzes and discusses the emergence of a platform ecology for urban transport, focusing on two central public values: the quality of urban transport and the organization of labor and workers’ rights. Using the prism of platform mechanisms, it analyzes how the sector of urban transport is changing societal organization in various urban areas across the world. Datafication has allowed numerous new actors to offer their bike-, car-, or ride-sharing services online; selection mechanisms help match old and new complementors with passengers. Similarly, new connective platforms are emerging, most prominently transport network companies such as Uber and Lyft that offer public and private transport options, as well as new platforms offering integrated transport services, often referred to as “mobility as a service.”


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Clara Inés Pardo Martínez ◽  
William Alfonso Piña ◽  
Angelo Facchini ◽  
Alexander Cotte Poveda

Abstract Background Currently, most of the world’s population lives in cities, and the rapid urbanization of the population is driving increases in the demand for products, goods and services. To effectively design policies for urban sustainability, it is important to understand the trends of flows in energy and materials as they enter and leave a city. This knowledge is essential for determining the key elements characterizing future urban growth and addressing future supply challenges. Methods This paper presents an analysis of the energy and material flows in the city of Bogotá over the time span from 2001 to 2017. Urban flows are also characterized in terms of their temporal evolution with respect to population growth to compare and identify the changes in the main input flows, wealth production, emissions and waste in the city. Results The results of the analysis are then compared with those for other selected large urban agglomerations in Latin America and worldwide to highlight similarities and make inferences. The results show that in Bogotá, there was a decrease in some of the material flows, such as the consumption of water and the generation of discharge, in recent years, while there was an increase in the consumption of energy and cement and in the production of CO2 emissions and construction materials. Solid waste production remained relatively stable. With respect to the other large cities considered, we observe that the 10-year growth rates of the flows with respect to population growth are lower in Bogotá, particularly when compared with the other urban agglomerations in Latin America. Conclusions The findings of this study are important for advancing characterizations of the trends of material and energy flows in cities, and they contribute to the establishment of a benchmark that allows for the definition and evaluation of the different impacts of public policy while promoting the sustainability of Bogotá in the coming decades.


2021 ◽  
Vol 13 (14) ◽  
pp. 7786
Author(s):  
Walter Leal Filho ◽  
Ismaila Rimi Abubakar ◽  
Richard Kotter ◽  
Thomas Skou Grindsted ◽  
Abdul-Lateef Balogun ◽  
...  

The development of electro-mobility is one of the centerpieces of European country attempts to reduce carbon emissions and increase the quality of life in cities. The goals of reducing emissions from the transport sector and phasing out fossil-fueled vehicles in (urban) transport by 2050 present unrivaled opportunities to foster electro-mobility. This paper provides a comprehensive review of the literature and provides a detailed analysis of the current development of electro-mobility in Europe, assessing social, economic, and environmental aspects under a circular economy (CE) context. It also examines the existing challenges and suggests ways of addressing them towards improving the environmental performance of electro-mobility and the urban quality of life. The paper argues that a narrow technology-only agenda in electro-mobility will be less successful without the imperative of the CE, including not just materials and resources but also energy, to unlock the medium-term co-benefits of de-carbonization of both the transport as well as the building and energy sectors. The paper critically reviews some of the anticipated future developments that may guide the growth of this rapidly growing field into a CE.


2021 ◽  
Vol 13 (7) ◽  
pp. 3753
Author(s):  
Athena Roumboutsos ◽  
Ioanna Pagoni ◽  
Athena Tsirimpa ◽  
Amalia Polydoropoulou

Smart Mobility and the introduction of innovation in the complex and dynamic actor ecosystem of urban transport is faced with the need to manage change in order to secure sustainability and protect against negative externalities. The present contribution provides decision-makers with a tool to assess innovation strategies and monitor change over time. The proposed EcoSystem Innovation Framework (ESIF) is applied to a flagship innovation: Mobility as a Service (MaaS). The application concerns the City of Budapest, a location with highly-utilized resources and low car ownership, in contrast to other locations where MaaS is implemented. The ESIF is constructed through qualitative research (stakeholder workshops, interviews, document collection and analysis) for three (3) points in time: Summer 2018; Summer 2019 and end of 2020 (first year of the COVID-19 pandemic). The ESIF analysis was able to guide decision-makers and highlight potential future trends demonstrating the potential of the ESIF framework. For the City of Budapest, the ESIF highlighted the delicate balance in the promotion of MaaS, as the dichotomy between public and private on-demand mobility may trigger a negative modal shift. The COVID-19 pandemic has enhanced this potential. Despite public sector efforts, market opportunity has surfaced leading to contrasting interests in the ecosystem.


2017 ◽  
Vol 42 (3) ◽  
pp. 20-24
Author(s):  
Yufang Jin ◽  
Xiangjian Zhang

With the continuous expansion of urban scale, blindly increasing or controlling transportation infrastructure possibly creates a short board in an urban system. In this study, a macro traffic integrated system was constructed according to a city's economic size distribution and transportation infrastructure. The planning strategy of traffic, industry, space interaction and coordinated development was put forward. Through theoretical model, the evolution mechanism between transportation infrastructure and economic scale distribution was revealed. Starting from the center of the city and inter city level, China's new urbanization strategy was implemented, and a comprehensive transportation system model was built. The traffic planning in Singapore was taken as an example, and the solution to traffic problems such as congestion, traffic jam, and distance was obtained. Practice has proved that the rational and effective urban transportation infrastructure construction can effectively promote the coordinated development of economy and resources, and comprehensively enhance the level of integrated transport services.


2019 ◽  
Vol 6 (4) ◽  
pp. 304-326
Author(s):  
Tonio Weicker

It is well known that labor migrants from different countries all over the Eurasian Union are the backbone of crucial economy sectors in the Russian Federation as, inter alia, construction, agriculture or trade. This article deals with another less mentioned but similarly significant labor market, which substantially changed its assemblage during the last couple of years, namely commercial urban transport services. In the last two decades, the marshrutka sector underwent major reforms and formalization processes that, on the one hand, brought operators back into the tax net and ensured a certain extension of control to the local transportation departments but, on the other hand, worsened the labor conditions of the transportation workers. Drawing from the empirical evidence of my fieldwork in southern Russia, I describe currently problematized mobility assemblages and embed the actor’s articulations in broader conflicts within the marshrutka business and transportation regulation policy. I further analyze how labor migrants have been forced to accept unfavorable working conditions in the enterprises as a direct result of politically triggered reforms in the marshrutka business. The paper provides insights into the social arena of the marshrutka, which serves as a societal encounter of urban conflicts and transformation mirroring (un-)intended effects of the local transportation reformation attempts.


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