scholarly journals Assessing CO2 Emissions from Passenger Transport with the Mixed-Use Development Model in Shenzhen International Low-Carbon City

Land ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 137
Author(s):  
Xianchun Tan ◽  
Tangqi Tu ◽  
Baihe Gu ◽  
Yuan Zeng ◽  
Tianhang Huang ◽  
...  

Assessing transport CO2 emissions is important in the development of low-carbon strategies, but studies based on mixed land use are rare. This study assessed CO2 emissions from passenger transport in traffic analysis zones (TAZs) at the community level, based on a combination of the mixed-use development model and the vehicle emission calculation model. Based on mixed land use and transport accessibility, the mixed-use development model was adopted to estimate travel demand, including travel modes and distances. As a leading low-carbon city project of international cooperation in China, Shenzhen International Low-Carbon City Core Area was chosen as a case study. The results clearly illustrate travel demand and CO2 emissions of different travel modes between communities and show that car trips account for the vast majority of emissions in all types of travel modes in each community. Spatial emission differences are prominently associated with inadequately mixed land use layouts and unbalanced transport accessibility. The findings demonstrate the significance of the mixed land use and associated job-housing balance in reducing passenger CO2 emissions from passenger transport, especially in per capita emissions. Policy implications are given based on the results to facilitate sophisticated transport emission control at a finer spatial scale. This new framework can be used for assessing the impacts of urban planning on transport emissions to promote sustainable urbanization in developing countries.

Author(s):  
Toru Ishikawa

AbstractThis article discusses the development of compact and functionally integrated urban environments from the perspective of local residents, focusing on their psychological evaluations of mixed land use and performance-based regulation. It demonstrates the significance of residents’ perceptions and attitudes in the achievement of flexibility required for urban planning in a shrinking society. To promote planned concentration of various functions in an urban area in an appropriate way, as in the development of compact cities in a multi-polar network advocated by the Location Normalization Plan, it will have more importance than ever to conceive planning that takes the characteristics of both a region and its residents into account.


2014 ◽  
Vol 16 (01) ◽  
pp. 1450003 ◽  
Author(s):  
TING WEI ◽  
ZHENGHONG TANG

Cities affect and are affected by climate change. Local land use comprehensive plans have an essential role in greenhouse gas (GHG) emission reduction. The study addresses two critical research questions: 1) How well do the fastest growing cities in the U.S. implement the low-carbon principles in their local comprehensive land use plans? and 2) How can local comprehensive land use plans be improved to promote low-carbon development? An evaluation protocol with five plan components and thirty-five indicators was developed to measure local land use planning capacity in building low-carbon cities. Results show that the majority of these cities have already established their comprehensive low-carbon city framework; however, they fail to fully incorporate specific low-carbon planning strategies into their plans. These cities can improve their local plan quality by enhancing the scientific basis of the plans, adopting more specific goals and policies, and expanding the planners' toolbox to achieve low-carbon city planning.


2018 ◽  
Vol 16 (5) ◽  
Author(s):  
Nur Aulia Rosni ◽  
Zakiah Ponrahono ◽  
Noorzailawati Mohd Noor

Spatial analysis of current land use provides useful insight on urban development trend specifically in measuring sprawl growth. Remote sensing and GIS technologies were applied in this research to measure the phases of segregated urban sprawl growth, focusing on the aspect of mixed land use planning. The findings proved that Kuala Lumpur is currently facing segregated land use sprawl based on the measurement derived from one of LUGI component. This type of sprawl transpired within the residential zone in Kuala Lumpur city, demoting mixed-use development by unravelling different classes of land uses into singleuses, thus promoting high dependency on motorised vehicle and discouraging public and pedestrian modes of transportation. The transit-oriented development is one of necessary approaches to control segregated sprawl and promotes mixed-use development in housing areas within the city.


Author(s):  
N. Davoudi ◽  
M. Taleai ◽  
M. Molavi

Abstract. Urban mobility pattern studies are one of the interesting issues in GIScience which provide appropriate means for urban transportation planning and management. Mobility across the city has a direct relation with the land-use pattern. This paper investigates the spatio-temporal effect of the land-use mix at street level on urban movement. Taxi pick up and drop-off data in Manhattan was chosen as the sample data in this study. Trips are classified into two parts (weekdays and weekends trips) and then the correlation between mixed land-use and number of trips occurred in different time windows in each street segment, is calculated. Results indicate positive impact and moderate correlation between mixed land-use and number of trips. In streets with high Entropy, homogeneous distribution of the number of trips at each time window for the weekend and non-homogeneous trip distribution for employment and commercial and residential areas for weekday trips was observed. Also, in streets with low Entropy, non-homogeneous trip distribution at different time windows for both weekday and weekend were observed upon to dominant land-use.


2012 ◽  
Vol 598 ◽  
pp. 241-246
Author(s):  
Ya Li Luo ◽  
Chang Xin Zhang

The paper firstly analyzed the carbon emissions effect of the city land use. Then it put forward the high density compact land use pattern is consistent with low-carbon developing goal. Finally, the paper systematically expounded the connotation of the low-carbon high density compact mixed use, and discussed the basic forms of low-carbon land use pattern, such as the giant single building, buildings on the same platform, new units model on the community scale etc..


2021 ◽  
Vol 284 ◽  
pp. 116400
Author(s):  
Lu Sun ◽  
Wenjing Liu ◽  
Zhaoling Li ◽  
Bofeng Cai ◽  
Minoru Fujii ◽  
...  

2019 ◽  
Vol 45 (4) ◽  
pp. 450-461 ◽  
Author(s):  
D. Schleith ◽  
M. J. Widener ◽  
C. Kim ◽  
M. W. Horner

The degree to which U.S. cities, metro regions, and general urbanized areas have distinct centres of economic activity has been a matter of debate for many decades. In the jobs–housing literature, there is related debate about whether having many distinct mixed-use centres in cities leads to longer or shorter commutes. The excess commuting framework has been increasingly refined and applied to assess urban areas' jobs–housing balance. The framework has expanded over the years but an issue in the present research is whether its various theoretical measurements and efficiency calculations might be used to assess the degree of poly- or mono-centricity of a region, thereby contributing to debates about what kind of urban form facilitates shorter commutes. In this paper, a suite of excess commuting (EC) measures are calculated for fifty-three of the largest Metropolitan Statistical Areas (MSAs) in the U.S. From there a hierarchical clustering approach is developed and applied to demonstrate which of these metrics are most useful in describing urban form. We examine how these metrics perform for particular built environments, which gives further insights into commuting and land use trends. Results of the research show how various urban forms have specific commuting outcomes: specifically, that polycentric urban forms have shorter average commute distances than sprawling ones. This should inform policy questions about the most effective land-use planning strategies to pursue in efforts to manage travel demand via built environment interventions.


Climate ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 17
Author(s):  
Eleanor Tonks ◽  
Sean Lockie

Adapting our cities to the new climate regime is critical to ensure that human development is not jeopardized and that the world’s citizens can thrive where they live. Faced as we are with the imperative to act, we now need to accept that the challenges we face are not technical in nature—they are systemic. Traditionally, investments in low-carbon city solutions have suffered from being small and disaggregated, with a focus on single-point solutions. To truly enable city transformation at scale, we need to completely rewire our approach to urban innovation and implementation. To face our new reality, EIT Climate-KIC works on catalysing systems change through innovation in areas of human activity that have a critical impact on greenhouse gas emissions—cities, land use, materials, and finance—and to create climate-resilient communities. In this paper, EIT Climate-KIC reflects on its key learnings, as an innovation community, on how to apply innovation in service of urban transformation through the application of nature-based solutions.


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