scholarly journals Flights Dominate Travel Emissions of Young Urbanites

2019 ◽  
Vol 11 (22) ◽  
pp. 6340 ◽  
Author(s):  
Michał Czepkiewicz ◽  
Áróra Árnadóttir ◽  
Jukka Heinonen
Keyword(s):  
Climate Change ◽  
Online Survey ◽  
Ghg Emissions ◽  
International Travel ◽  
City Center ◽  
Long Distance ◽  
Unequal Distribution ◽  
Leisure Travel ◽  
Travel Abroad ◽  
The City

Transport is a key sector in reducing greenhouse gas (GHG) emissions. A consensus prevails on a causal relationship between distance to the city center and emissions from private transport, which has led to an emphasis on density in urban planning. However, several studies have reported a reverse association between the level of urbanity and emissions from long-distance leisure travel. Studies have also suggested that pro-environmental attitudes and climate change concerns are unrelated or positively related to emissions from long-distance travel. The goals of this case study were to find out the structure, levels, distribution, and predictors of GHG emissions from the local, domestic, and international travel of young adults of the Reykjavik Capital Region. A life cycle assessment (LCA) approach was utilized to calculate emissions, and the materials were collected with a map-based online survey. International leisure travel dominated the overall GHG emissions from personal travel regardless of residential location, modality style, or income level. A highly unequal distribution of emissions was found. A higher climate change awareness was found to predict higher GHG emissions from trips abroad. Emissions from leisure travel abroad were the highest in the city center, which was related to cosmopolitan attitudes among downtown dwellers.

scholarly journals Circular Statistics Applied to the Study of the Solar Radiation Potential of Rooftops in a Medium-Sized City

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2813 ◽  
Author(s):  
María-Eugenia Polo ◽  
Mar Pozo ◽  
Elia Quirós
Keyword(s):  
Climate Change ◽  
Alternative Energy ◽  
Urban Morphology ◽  
Circular Data ◽  
Circular Statistics ◽  
Sustainable Cities ◽  
Residential Areas ◽  
City Center ◽  
Alternative Energy Sources ◽  
The City

Solar energy constitutes one of the most effective alternative energy sources for combating climate change. However, the solar potential in a city can vary depending on the urban morphology. The purpose of this paper is to perform a directional statistical analysis of the distribution of the monthly solar potential of rooftops in the city of Cáceres, Spain, in relation to the orientations and slopes of the rooftops. Two residential areas, one in the city center and one on the outskirts of the city, and an industrial zone, all of which exhibit different urban morphologies, have been evaluated. Statistics have been assessed in consideration of the orientation and slope values of the rooftops as circular data, and the radiation values as linear data. The three dissimilar urban morphologies result in different solar potential values, and the monthly disaggregation of the data enables the ability to detect the differences existing in the solar potential between each zone, during each month. The proposed analysis could also be extrapolated to urban planning for the design of more sustainable cities to face the challenges associated with climate change.

scholarly journals Mobility Infrastructures in Cities and Climate Change: An Analysis Through the Superblocks in Barcelona

Atmosphere ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 410
Author(s):  
Iván López ◽  
Jordi Ortega ◽  
Mercedes Pardo
Keyword(s):  
Climate Change ◽  
Negative Impact ◽  
Ghg Emissions ◽  
Negative Influence ◽  
Business Community ◽  
Institutional Leadership ◽  
Collective Transport ◽  
Car Traffic ◽  
Combat Climate Change ◽  
The City

Cities are key actors in the fight against climate change since they are major sources of greenhouse gas (GHG) emissions while at the same time they experience the negative impact of this phenomenon. Mitigating and adapting to climate change requires fundamental changes in urbanism and city automobile traffic. Superblocks, a grid of blocks and basic roads forming a polygon, approximately 400 by 400 m, are one of the instruments for such changes. These type of city Superblocks represent a new model of mobility that restructures the typical urban road network, thereby substantially reducing automobile traffic, and accordingly GHG emissions, while increasing green space in the city and improving the health and quality of life of its inhabitants. Furthermore, the Superblocks do not require investment in hard infrastructures, nor do they involve demolishing buildings or undertaking massive development; they are in fact very low-tech urbanism. The city of Barcelona has been implementing Superblocks as one of the measures to combat climate change with very positive results. The paper analyzes the concept of the Superblock and its relation with climate change in cities. Along these lines, it analyzes the pioneer experience of Barcelona in the development and implementation of the Superblocks, as a radical plan aimed at taking back the streets from cars. The role of political power and institutional leadership has been key in societal acceptance and the achievement of tangible results. But there are also obstacles and drawbacks in the development of these types of Superblocks, such as the necessity to redesign the collective transport network so that car traffic can truly be reduced in cities, the possible negative influence on traffic going in and out of the city, the lack of visible advantages if they are not implemented in the entire city, the risk of gentrification in the areas with Superblocks, public opposition, and opposition from certain sectors of the business community.

scholarly journals Exploring the consequences of COVID-19 on tourist behaviors: perceived travel risk, animosity and intentions to travel

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Villy Abraham ◽  
Kerstin Bremser ◽  
Mercedes Carreno ◽  
Lynda Crowley-Cyr ◽  
Maria Moreno
Keyword(s):  
Locus Of Control ◽  
Attribution Theory ◽  
Online Survey ◽  
International Study ◽  
International Travel ◽  
Health Crisis ◽  
Content Type ◽  
Attribution Of Blame ◽  
Travel Abroad ◽  
The Impact

Purpose This paper aims to report on the findings emerging from an international study focused on the COVID-19 pandemic impact on travel attitudes and behavioral intentions . Design/methodology/approach An online survey created with SurveyMonkey was distributed to a sample of 216 international travelers who were at least 18 years of age. Findings The findings suggest that attribution theory (locus of control) may account for international travel. Individuals attributing the spread of COVID-19 to their own countries (internal locus of control) are more likely to travel abroad. Statistically significant differences are observed between various generational cohorts concerning perceived travel risk, domestic and international travel. Originality/value The impact of a health crisis on domestic and international travels conceptualized in a single model is absent from the literature. The authors propose a model to account for the influence of pandemics on tourists’ attitudes and intentions to travel and whether attribution of blame influences travel destination choices (domestic or international).

scholarly journals Mitigation of CH4 emissions in sanitary landfills: An efficient technological arrangement to reduce Greenhouse gas emission.

2021 ◽  
Vol 43 ◽  
pp. e90
Author(s):  
Henrique Rossi Otto ◽  
José Carlos de Jesus Lopes
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Greenhouse Gas Emission ◽  
Ghg Emissions ◽  
Sanitary Landfill ◽  
Gas Emission ◽  
Ch4 Emissions ◽  
Sanitary Landfills ◽  
The City ◽  
Technological Model

Problems related to the solid waste have been shown a relevant subject, by contributing to global warming and climate change. The MSW is one of the main sources of Greenhouse Gases (GHG) emissions, especially the methane gas (CH4). Towards this concern, the general objective of this research is to estimate CH4 emissions produced at the Dom Antonio Barbosa II Sanitary Landfill, situated in the City of Campo Grande, state of MS. Its aim, specifically, is to verify the gravimetric composition of these residues, as well as measure the amount of the MSW already existing and also the volume placed in the mentioned sanitary landfill. The CH4 emissions were estimated in an accumulated total of 2,364,556.28 tCO2eq. It was obtained a total reduction of 1,479,693.87 tCO2eq by methane burning, transforming it into CO2, thus it was possible mitigating the emissions of 62.65% of CH4 generated in DAB II landfill. It is expected that the results from this research contribute to the attenuation of the problems related to the MSW impact on the environment, as well as reflect on the effectiveness of the current adopted technological model.

scholarly journals PRECIPITATION SCENARIOS IN HO CHI MINH CITY IN THE CONTEXT OF CLIMATE CHANGE

2018 ◽  
Vol 55 (4C) ◽  
pp. 115 ◽  
Author(s):  
Nguyen Ky Phung
Keyword(s):  
Climate Change ◽  
Coastal Area ◽  
Ho Chi Minh City ◽  
Seasonal Precipitation ◽  
City Center ◽  
Rcp Scenarios ◽  
The North ◽  
The City ◽  
Important Basis ◽  
Average Annual Precipitation

This work aimed at developing precipitation scenarios in Ho Chi Minh City (HCMC) corresponding to scenarios of RCP2.6, RCP4.5, RCP6.0, and RCP8.5. By means of data collecting and processing and SimCLIM software, results showed the average annual precipitation in HCMC would increase over the years and RCP scenarios: from 13.4 % to 24 % in 2100 compared to that in the period of 1986-2005. The dry seasonal precipitation would tend to decrease while the rainy seasonal one would increase. By space, average annual and seasonal precipitations in HCMC decrease from the northwest to the southeast: the highest one are in the north (Cu Chi, Hoc Mon) and the city center while the lowest are in the coastal area (Can Gio). These results are an important basis for assessing impacts and vulnerability due to precipitation variations in particular and climate change in general in HCMC.

scholarly journals Factors Affecting COVID-19 Outbreaks across the Globe: Role of Extreme Climate Change

2021 ◽  
Vol 13 (6) ◽  
pp. 3029
Author(s):  
Debashis Nath ◽  
Keerthi Sasikumar ◽  
Reshmita Nath ◽  
Wen Chen
Keyword(s):  
Climate Change ◽  
Environmental Conditions ◽  
Population Distribution ◽  
Ghg Emissions ◽  
International Travel ◽  
Factors Affecting ◽  
Extreme Climate ◽  
Initial Stage ◽  
Historical Temperature

The Coronavirus Disease 2019 (COVID-19) pandemic poses a serious threat to global health system and economy. It was first reported in Wuhan, China, and later appeared in Central Asia, Europe, North America, and South America. The spatial COVID-19 distribution pattern highly resembles the global population distribution and international travel routes. We select 48 cities in 16 countries across 4 continents having infection counts higher than 10,000 (by 25 April 2020) as the COVID-19 epicenters. At the initial stage, daily COVID-19 counts co-varies strongly with local temperature and humidity, which are clustered within 0–10 °C and 70–95%, respectively. Later, it spreads in colder (−15 °C) and warmer (25 °C) countries, due to faster adaptability in diverse environmental conditions. We introduce a combined temperature-humidity profile, which is essential for prediction of COVID-19 cases based on environmental conditions. The COVID-19 epicenters are collocated on global CO2 emission hotspots and its distribution maximizes at 7.49 °C, which is 1.35 °C/2.44 °C higher than current (2020)/historical (1961–1990) mean. Approximately 75% of the COVID-19 cases are clustered at severe-extreme end of historical temperature distribution spectrum, which establish its tighter and possible association with extreme climate change. A strong mitigation measure is essential to abate the GHG emissions, which may reduce the probability of such pandemics in the future.

Driving to Distractions: Recreational Trips in Private Vehicles

2000 ◽  
Vol 1719 (1) ◽  
pp. 267-272 ◽  
Author(s):  
William J. Mallett ◽  
Nancy McGuckin
Keyword(s):  
African Americans ◽  
Daily Basis ◽  
Long Distance ◽  
Hispanic Families ◽  
Leisure Travel ◽  
Private Vehicle ◽  
Travel Forecasting ◽  
Total Vehicle ◽  
Personal Transportation ◽  
The City

An increasing amount of travel, both long- and short-distance trips, is made in private vehicles for recreation. Peak congestion around attractions and leisure spots can be worse than congestion in the city center during peak periods. Moreover, recreational travel within, to, and through metropolitan areas contributes to congestion problems and points to the need for its incorporation into travel forecasting. The importance of leisure travel in state economies raises the question of why this segment of travel is not more often studied. The 1995 American Travel Survey and the 1995 Nationwide Personal Transportation Survey are used to examine the characteristics of recreational trips by private vehicle. Recreational trips by other modes, such as transit and airplane, are not included. Data from the surveys show that private vehicle recreation trips make up about 14 percent of all local trips, 23 percent of all long-distance trips, and 15 percent of total vehicle kilometers traveled on U.S. roads. Recreation trips are not equally distributed among all groups of people, however. African Americans report about half the amount of recreational automobile trips and one-third the average kilometers as whites. Other differences by race or ethnicity indicate that Hispanic families tend to travel in larger groups than African Americans or whites. Age, too, is a determining factor in the amount and type of recreational travel. Both the young and the old make more trips on a daily basis, but they make far fewer long-distance trips than those in middle age.

Accuracy of On-site Consistent Origin-Destination Estimation Method for Measuring the Actual Numbers of Consumer Shop-around Movements within the City Center of Hanoi, Vietnam

2012 ◽  
Vol 42 (2) ◽  
pp. 439-455 ◽  
Author(s):  
Saburo SAITO ◽  
Tran Ngoc HUY ◽  
Masakuni IWAMI ◽  
Takahiro SATO ◽  
Kosuke YAMASHIRO ◽  
...  
Keyword(s):  
Estimation Method ◽  
City Center ◽  
The City

Urban Development Strategies of City Centers: The Case of Rafah City, Palestinian Territories

2014 ◽  
Vol 8 (3) ◽  
pp. 195
Author(s):  
Omar S. Asfour ◽  
Samar Abu Ghali
Keyword(s):  
Urban Development ◽  
Gaza Strip ◽  
Geographic Location ◽  
Development Strategies ◽  
Functional Requirements ◽  
City Center ◽  
Palestinian Territories ◽  
The Gaza Strip ◽  
The City ◽  
Commercial Center

City centers worldwide are perceived as essential parts of the city, where city memories are preserved and its identity is expressed. They are planned to satisfy the functional requirements and pleasurable qualities of the city. Under the accelerating urbanization of the modern city, several challenges face these centers including demographic, economic, and environmental challenges. This requires a continuous and incremental urban development process based on clear strategy and action plans. Thus, this study focuses on urban development strategies of city centers, with a focus on Rafah city located in the Gaza Strip, Palestinian Territories. The geographic location of this city near the Palestinian-Egyptian borders makes it a promising commercial city at local and regional levels. Thus, the current situation of Rafah city center has been analyzed, and several development strategies have been proposed. This has been done through a field survey based on observation and a questionnaire directed to city center users. It has been found that there is a great potential of Rafah city center to be developed as a commercial center. In this regard, several strategies and required actions have been proposed in the fields of transportation, environmental quality, shopping activities, investment opportunities, and visual perception.

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