scholarly journals On the Emergence of Sociotechnical Regimes of Electric Urban Water Transit Systems

Energies ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 6111
Author(s):  
Maciej Tarkowski
Keyword(s):  
Feasibility Studies ◽  
Comparative Case Study ◽  
Transport Sector ◽  
Urban Water ◽  
Urban Mobility ◽  
City Branding ◽  
Transit Systems ◽  
Local Climate ◽  
Policies And Measures ◽  
Multilevel Perspective

Urban activities, including urban mobility, play a crucial role in climate change mitigation. Urban mobility is currently at a crossroads. In a business as usual scenario, CO2 emissions from urban transportation will grow by one fourth by 2050. Nevertheless, during this period, it may drop by about one third. To make the drop happen, we need to introduce comprehensive policies and measures. Electrifying urban transit is one feasible solution. This study investigates whether and how urban water transit systems have been electrified—a means of transport which has not been well researched in this respect. A multilevel perspective and the comparative case study method were employed to answer the research questions. The comprehensive study focussed on 24 cities representing the current experience in planning and operating water transport, based mainly on secondary, primarily qualitative, data, such as industry reports, feasibility studies, urban policies, and scientific papers. The primary outcome is that urban electric passenger ferries left their market niches and triggered a radical innovation, diffusing into mainstream markets. However, urban diversity results in various paths to electrification, due to the system’s physical characteristics, local climate and transport policies, manufacturing capacity, green city branding, and the innovativeness of international ferry operators. Three dominant transition pathways were identified—a comprehensive carbon neutral policy, a transport sector policy, and a research and development policy. From a multilevel perspective, cities can be considered a bridge between niches and regimes that provide the actual conditions for implementing sociotechnical configurations.

Urban water storage capacity inferred from observed evapotranspiration recession 

2021 ◽  
Author(s):  
Harro Jongen ◽  
Gert-Jan Steeneveld ◽  
Jason Beringer ◽  
Krzysztof Fortuniak ◽  
Jinkyu Hong ◽  
...  
Keyword(s):  
Storage Capacity ◽  
Water Storage ◽  
Urban Water ◽  
Natural Forests ◽  
Local Climate ◽  
Water Storage Capacity ◽  
Vegetation Fraction ◽  
Local Climate Zones ◽  
Order Of Magnitude ◽  
Neighborhood Scale

<p>The amount and dynamics of urban water storage play an important role in mitigating urban flooding and heat. Assessment of the capacity of cities to store water remains challenging due to the extreme heterogeneity of the urban surface. Evapotranspiration (ET) recession after rainfall events during the period without precipitation, over which the amount of stored water gradually decreases, can provide insight on the water storage capacity of urban surfaces. Assuming ET is the only outgoing flux, the water storage capacity can be estimated based on the timescale and intercept of its recession. In this paper, we test the proposed approach to estimate the water storage capacity at neighborhood scale with latent heat flux data collected by eddy covariance flux towers in eleven contrasting urban sites with different local climate zones, vegetation cover and characteristics and background climates (Amsterdam, Arnhem, Basel, Berlin, Helsinki, Łódź, Melbourne, Mexico City, Seoul, Singapore, Vancouver). Water storage capacities ranging between 1 and 12 mm were found. These values correspond to e-folding timescales lasting from 2 to 10 days, which translate to half-lives of 1.5 to 7 days. We find ET at the start of a drydown to be positively related to vegetation fraction, and long timescales and large storage capacities to be associated with higher vegetation fractions. According to our results, urban water storage capacity is at least one order of magnitude smaller than the known water storage capacity in natural forests and grassland.</p>

Spatial contexts and firm strategies: applying the multilevel perspective to sustainable urban mobility transitions in Brazil

2015 ◽  
Vol 108 ◽  
pp. 1092-1104 ◽  
Author(s):  
Roberto Marx ◽  
Adriana Marotti de Mello ◽  
Mauro Zilbovicius ◽  
Felipe Ferreira de Lara
Keyword(s):  
Urban Mobility ◽  
Firm Strategies ◽  
Multilevel Perspective ◽  
Sustainable Urban Mobility

scholarly journals Behavioural changes in urban mobility in Barcelona due to the COVID-19 pandemic and its impact on air pollution and greenhouse gas emissions

2021 ◽  
Author(s):  
Corinna Peters
Keyword(s):  
Air Pollution ◽  
Greenhouse Gas ◽  
Public Transport ◽  
Road Traffic ◽  
Ghg Emissions ◽  
Urban Transport ◽  
Policy Implications ◽  
Transport Sector ◽  
Urban Mobility ◽  
The City

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.

Application of Rainwater Garden in Economical Ecological Urban Landscape

2013 ◽  
Vol 409-410 ◽  
pp. 800-805 ◽  
Author(s):  
Xiao Yi Xuan ◽  
Hui Xuan Zhang
Keyword(s):  
Sustainable Development ◽  
Urban Landscape ◽  
Water Cycle ◽  
Underground Water ◽  
Urban Water ◽  
Local Climate ◽  
The Sustainable Development ◽  
Cycle System ◽  
Island Effect ◽  
Cyclic Utilization

With the acceleration of global sustainable development, the shortage of water resources especially the city has become the focus of attention in all countries since water is the key to build a resources-saving ecological city. The article improved the existing "rain garden" project and replenished the purification of the rain in order to realize the urban water cyclic utilization ,through recycling rainwater, which can manage rainstorm effectively , improve the urban water cycle system, as well as supply urban irrigation and underground water. Besides, the combination of urban landscape and stormwater management system, if widely accepted, will not only improve the urban water problem, but also improve the urban environment, alleviating the urban heat island effect and improving the local climate. It can shape a new resources-saving ecological city and then realize the sustainable development of resources.

scholarly journals Green Infrastructures for Urban Water System: Balance between Cities and Nature

Water ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1456
Author(s):  
Robert Sitzenfrei ◽  
Manfred Kleidorfer ◽  
Peter M. Bach ◽  
Taneha Kuzniecow Bacchin
Keyword(s):  
Green Infrastructure ◽  
Management Practices ◽  
Rainwater Harvesting ◽  
Water System ◽  
Green Roofs ◽  
Community Services ◽  
Urban Water ◽  
Local Climate ◽  
Urban Water System ◽  
Climate Resilience

Urban water systems face severe challenges such as urbanisation, population growth and climate change. Traditional technical solutions, i.e., pipe-based, grey infrastructure, have a single purpose and are proven to be unsustainable compared to multi-purpose nature-based solutions. Green Infrastructure encompasses on-site stormwater management practices, which, in contrast to the centralised grey infrastructure, are often decentralised. Technologies such as green roofs, walls, trees, infiltration trenches, wetlands, rainwater harvesting and permeable pavements exhibit multi-functionality. They are capable of reducing stormwater runoff, retaining stormwater in the landscape, preserving the natural water balance, enhancing local climate resilience and also delivering ecological, social and community services. Creating multi-functional, multiple-benefit systems, however, also warrants multidisciplinary approaches involving landscape architects, urban planners, engineers and more to successfully create a balance between cities and nature. This Special Issue aims to bridge this multidisciplinary research gap by collecting recent challenges and opportunities from on-site systems up to the watershed scale.

scholarly journals Studi Awal Pemanfaatan Kanal Jongaya dan Panampu Sebagai Transportasi Air di Kota Makassar

2019 ◽  
Vol 4 (2) ◽  
pp. 122
Author(s):  
Ahmad Dahlan ◽  
Slamet Trisutomo
Keyword(s):  
Swot Analysis ◽  
Urban Infrastructure ◽  
The Other ◽  
Feasibility Analysis ◽  
Transport Sector ◽  
Urban Drainage ◽  
Urban Water ◽  
Traffic Jam ◽  
The Relationship ◽  
The City

Perkembangan jumlah kendaraan yang pesat di kota Makassar tidak diimbangi oleh pembangunan infrastruktur perkotaan khususnya pada sektor transportasi sehingga menimbulkan kemacetan, oleh karena itu dibutuhkan langkah-langkah strategis untuk menyelesaikan permasalahan tersebut salah satunya dengan mengembangkan transportasi alternatif dengan melihat potensi yang ada. Kota Makassar memiliki kanal Jongaya dan Panampu yang letaknya berada ditengah kota, membelah kota Makassar dari utara hingga selatan dan berfungsi sebagai drainase perkotaan. Penelitian ini bertujuan untuk mengungkap potensi dan masalah pada kanal jongaya dan panampu dalam perspektif pemanfaatannya sebagai transportasi air perkotaan, dan juga melihat hubungannya dengan moda transportasi lainnya dengan menentukan titik perhentian atau halte pada jalur kanal. Analisis yang digunakan dalam penelitian ini yaitu analisis kelayakan pelayaran kanal, analisis SWOT untuk kondisi lingkungan kanal, dan analisis penentuan lokasi halte. Dari hasil analisis tersebut dihasilkan beberapa kesimpulan yang akan menjadi rekomendasi atau arahan yang harus dilakukan sebelum melakukan kegiatan perencanaan transportasi pada kanal jongaya dan panampu Kota Makassar.  The rapid growth in the number of vehicles in the city of Makassar is not matched by the development of urban infrastructure especially in the transport sector, causing traffic jam. Therefore, it takes strategic steps to resolve these problems, one of them by developing alternative transportation by seeing the potential that exists. Makassar has Jongaya and Panampu canal that is located in the center of the city, divides the city from north to south and serves as urban drainage. This study aims to uncover the potential and problems of the Panampu and Jongaya canal in perspective of it’s utilization as urban water transport, and also to see the relationship with the other transport modes by defining stop spots on the canal path.  The analysis used in this research are, feasibility analysis of the canal for shipping, SWOT analysis for the environmental contition of the canal, and siting analysis for stops location. From this analysis, produced some conclusions that will become a recommendation or a referral that must be followed prior to the transportation planning activities in Panampu and Jongaya canal in Makassar.

scholarly journals Urban Mobility Demand Profiles: Time Series for Cars and Bike-Sharing Use as a Resource for Transport and Energy Modeling

Data ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 108 ◽  
Author(s):  
Noussan ◽  
Carioni ◽  
Sanvito ◽  
Colombo
Keyword(s):  
Time Series ◽  
Traffic Monitoring ◽  
Transport Sector ◽  
High Temporal Resolution ◽  
Urban Mobility ◽  
Time Step ◽  
Transport Models ◽  
Bike Sharing ◽  
Urban Contexts ◽  
The City

The transport sector is currently facing a significant transition, with strong drivers includingdecarbonization and digitalization trends, especially in urban passenger transport. The availability ofmonitoring data is at the basis of the development of optimization models supporting an enhancedurban mobility, with multiple benefits including lower pollutants and CO2 emissions, lower energyconsumption, better transport management and land space use. This paper presents two datasetsthat represent time series with a high temporal resolution (five-minute time step) both for vehiclesand bike sharing use in the city of Turin, located in Northern Italy. These high-resolution profileshave been obtained by the collection and elaboration of available online resources providing liveinformation on traffic monitoring and bike sharing docking stations. The data are provided for theentire year 2018, and they represent an interesting basis for the evaluation of seasonal and dailyvariability patterns in urban mobility. These data may be used for different applications, rangingfrom the chronological distribution of mobility demand, to the estimation of passenger transportflows for the development of transport models in urban contexts. Moreover, traffic profiles are at thebasis for the modeling of electric vehicles charging strategies and their interaction with the powergrid.

Mobility, energy, environment and disruptive innovation: Challenges, opportunities and perspective for new sustainable integrated approaches to planning

2020 ◽  
pp. 5-12
Author(s):  
Gabriele Grea ◽  
Giorgio Besagni ◽  
Marco Borgarello
Keyword(s):  
Disruptive Innovation ◽  
Economic Research ◽  
Transport Sector ◽  
Urban Mobility ◽  
Sustainable Mobility ◽  
Final Energy ◽  
Climate Action ◽  
Policy Dynamics ◽  
Energy Environment ◽  
Sustainable Urban Mobility

The transport sector represents approximately 30% of the final energy consumption in the Eu-ropean Union. Cars, trucks and light vehicles are responsible for 70% of the final energy con-sumed in the transport sector (source: Eurostat). The process of decarbonisation of mobility is represented by a combination of technological, behavioural and policy dynamics to be effec-tively fostered and combined in order to maximise their impact. The introduction provides a review of the main mobility and energy integrated planning ap-proaches represented by Sustainable Urban Mobility Plans (SUMPs) and Sustainable Energy and Climate Action Plans (SECAPs), as well as a brief overview of the expected impacts of disruptive innovation and their inclusion in the revised approach towards mobility planning in Europe. This picture provides the framework for the presentation of the papers selected for the 2020 EPEE special issue on sustainable mobility, and their contribution to the progress of economic research to increase the knowledge of innovation trends that strongly influence the evolution of urban mobility networks.

Rail in Multimodal Transit Systems: Concept for Improving Urban Mobility by Increasing Choices for Travel and Lifestyle

1997 ◽  
Vol 1571 (1) ◽  
pp. 208-217 ◽  
Author(s):  
John W. Schumann
Keyword(s):  
Central Business District ◽  
The United States ◽  
Sustainable Urban Development ◽  
Transport Systems ◽  
Urban Mobility ◽  
Niche Markets ◽  
Transit Systems ◽  
Community Patterns ◽  
Rail Systems ◽  
Business District

Metro areas relying on automobile-based transport are increasingly congested. Some alternatives to gridlock are being implemented; others languish without political acceptance. Congestion is more than a suburban issue. Both intersuburban and radial travel woes are growing and must be addressed. Agencies should start with bus improvements, then add rail where appropriate. Experience shows that, unlike purely radial systems, transit networks with many transfer opportunities offer options to users in more travel markets and, as a result, attract more riders. In the United States, rail is often viewed as serving just the central business district (CBD) and being incapable of accommodating suburban trips. In fact, radial rail lines can provide attractive options for trips to new centers near suburban rail stations, in addition to CBD trips. Rail systems become regional connections, linked via timed transfers at transit centers with bus and paratransit feeders and circulators. Clock headways and integrated fares complete a seamless multimodal, multidestinational system serving the CBD as well as emerging regional centers. Such systems work best as part of a comprehensive program for sustainable urban development, consciously planned by committed, far-sighted political leaders who build public consensus to implement a regional vision for community patterns that encourage a rich variety of lifestyle and mobility choices. Key to effecting such transport systems are ( a) competent transit management that seeks out and serves a variety of niche markets, and ( b) coordinated transportation and land use decision making that values transit links to major destinations and compact communities.

scholarly journals A Method for Modeling Urban Water Infrastructures Combining Geo-Referenced Data

Water ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2299
Author(s):  
Imke-Sophie Rehm ◽  
John Friesen ◽  
Kevin Pouls ◽  
Christoph Busch ◽  
Hannes Taubenböck ◽  
...  
Keyword(s):  
Spatial Data ◽  
Water Distribution ◽  
Optimization Methods ◽  
Distribution Networks ◽  
Urban Water ◽  
Local Climate ◽  
Urban Structures ◽  
Local Climate Zones ◽  
Science And Politics ◽  
The One

Water distribution networks are the backbone of any municipal water supply. Their task is to supply the population regardless of the respective demand. High resilience of these infrastructures is of great importance and has brought these infrastructures into the focus of science and politics. At the same time, the data collected is highly sensitive and often openly unavailable. Therefore, researchers have to rely on models that represent the topology of these infrastructures. In this work, a model is developed that allows the topology of an urban water infrastructure to be mapped using the example of Cologne, Germany by combining freely available data. On the one hand, spatial data on land use (local climate zones) are used to disaggregate the water demand within the city under consideration. On the other hand, the parallelism of water and urban transportation infrastructures is used to identify the topology of a network by applying optimization methods. These networks can be analyzed to identify vulnerable areas within urban structures.

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