Land Use, Urban Design, and Nonwork Travel: Reproducing Other Urban Areas’ Empirical Test Results in Portland, Oregon

2000 ◽  
Vol 1722 (1) ◽  
pp. 27-37 ◽  
Author(s):  
Marlon G. Boarnet ◽  
Michael J. Greenwald
Keyword(s):  
Land Use ◽  
Urban Area ◽  
Urban Design ◽  
Urban Areas ◽  
Empirical Test ◽  
The Other ◽  
Test Results ◽  
Trip Generation ◽  
New Urbanist ◽  
New Variables

Research on nonwork automobile trip generation and land use previously conducted by researchers is replicated for the Portland, Oregon, region. Additionally, new variables examining new urbanist arguments are incorporated. The results suggest that any links between land use and nonwork trip behavior act primarily by influencing trip costs, in terms of distances traveled and speeds achieved, rather than directly influencing the number of trips made. This analysis is consistent with the other research, suggesting that this model is not sensitive to errors that might arise due to the unique characteristics of the urban area under review.

scholarly journals InSAR Multitemporal Data over Persistent Scatterers to Detect Floodwater in Urban Areas: A Case Study in Beletweyne, Somalia

2020 ◽  
Vol 13 (1) ◽  
pp. 37
Author(s):  
Luca Pulvirenti ◽  
Marco Chini ◽  
Nazzareno Pierdicca
Keyword(s):  
Urban Area ◽  
Urban Areas ◽  
The Other ◽  
Spatial Average ◽  
Calibration Data ◽  
Suburban Areas ◽  
Persistent Scatterers ◽  
Optical Images ◽  
Interferometric Phase ◽  
Multitemporal Data

A stack of Sentinel-1 InSAR data in an urban area where flood events recurrently occur, namely Beletweyne town in Somalia, has been analyzed. From this analysis, a novel method to deal with the problem of flood mapping in urban areas has been derived. The approach assumes the availability of a map of persistent scatterers (PSs) inside the urban settlement and is based on the analysis of the temporal trend of the InSAR coherence and the spatial average of the exponential of the InSAR phase in each PS. Both interferometric products are expected to have high and stable values in the PSs; therefore, anomalous decreases may indicate that floodwater is present in an urban area. The stack of Sentinel-1 data has been divided into two subsets. The first one has been used as a calibration set to identify the PSs and determine, for each PS, reference values of the coherence and the spatial average of the exponential of the interferometric phase under standard non-flooded conditions. The other subset has been used for validation purposes. Flood maps produced by UNOSAT, analyzing very-high-resolution optical images of the floods that occurred in Beletweyne in April–May 2018, October–November 2019, and April–May 2020, have been used as reference data. In particular, the map of the April–May 2018 flood has been used for training purposes together with the subset of Sentinel-1 calibration data, whilst the other two maps have been used to validate the products generated by applying the proposed method. The main product is a binary map of flooded PSs that complements the floodwater map of rural/suburban areas produced by applying a well-consolidated algorithm based on intensity data. In addition, a flood severity map that labels the different districts of Beletweyne, as not, partially, or totally flooded has been generated to consolidate the validation. The results have confirmed the effectiveness of the proposed method.

Study of diffuse source pollution management for land use and drainage system planning

2001 ◽  
Vol 44 (7) ◽  
pp. 203-208 ◽  
Author(s):  
K. Yamada ◽  
T. Funaki ◽  
S. Honda ◽  
M. Sugihara
Keyword(s):  
Land Use ◽  
Urban Area ◽  
Land Use Planning ◽  
Urban Areas ◽  
Drainage System ◽  
Pollutant Removal ◽  
Storm Events ◽  
Road Surfaces ◽  
Using Data

This study aims to clarify the mass balance of pollutants during both dry periods and storm events and to discuss the effects of some strategies such as pollutant removal, land use planning and new drainage systems by simulation. Three subjects are discussed in this paper. First, the amount of pollutants entering Lake Biwa from an urban area have been roughly estimated by using data collected by the local government. Second, many additional samples were collected from road surfaces, house roofs and parking lots to consider the role of land use in pollutant runoff. Third, some ongoing BMP projects in an urban area are introduced. As a result, some ideas on how to solve the problem of diffuse pollution in urban areas have been obtained.

scholarly journals Relationship between City Size, Coastal Land Use, and Summer Daytime Air Temperature Rise with Distance from Coast

Climate ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 84
Author(s):  
Hideki Takebayashi ◽  
Takahiro Tanaka ◽  
Masakazu Moriyama ◽  
Hironori Watanabe ◽  
Hiroshi Miyazaki ◽  
...  
Keyword(s):  
Land Use ◽  
Urban Area ◽  
Air Temperature ◽  
Temperature Rise ◽  
Urban Land Use ◽  
The Other ◽  
City Size ◽  
Coastal Land Use ◽  
German Cities ◽  
Coastal Land

The relationship between city size, coastal land use, and air temperature rise with distance from coast during summer day is analyzed using the meso-scale weather research and forecasting (WRF) model in five coastal cities in Japan with different sizes and coastal land use (Tokyo, Osaka, Nagoya, Hiroshima, and Sendai) and inland cities in Germany (Berlin, Essen, and Karlsruhe). Air temperature increased as distance from the coast increased, reached its maximum, and then decreased slightly. In Nagoya and Sendai, the amount of urban land use in coastal areas is less than the other three cities, where air temperature is a little lower. As a result, air temperature difference between coastal and inland urban area is small and the curve of air temperature rise is smaller than those in Tokyo and Osaka. In Sendai, air temperature in the inland urban area is the same as in the other cities, but air temperature in the coastal urban area is a little lower than the other cities, due to an approximate one degree lower sea surface temperature being influenced by the latitude. In three German cities, the urban boundary layer may not develop sufficiently because the fetch distance is not enough.

scholarly journals Changes in Intense Precipitation Events in Mexico City

2015 ◽  
Vol 16 (4) ◽  
pp. 1804-1820 ◽  
Author(s):  
Carlos A. Ochoa ◽  
Arturo I. Quintanar ◽  
Graciela B. Raga ◽  
Darrel Baumgardner
Keyword(s):  
Land Use ◽  
Urban Area ◽  
Mexico City ◽  
Urban Areas ◽  
Wet Season ◽  
Mountain Areas ◽  
Surface Exchange ◽  
Intense Precipitation ◽  
Precipitation Decrease ◽  
Alternative Hypotheses

Abstract The authors analyzed an extensive precipitation dataset available for the Mexico City basin that included hourly precipitation in various sectors of the city from 1993 to 2007. Observations indicated that significant changes occurred in the timing and number of intense events (precipitation rate >20 mm h−1) over this time period. Alternative hypotheses that changes in the emission of aerosol pollutants or in the land use can result in the observed variations are tested. The Weather Research and Forecasting Model was used to simulate September precipitation from 2002 to 2011 at the peak of the wet season. Changes were introduced to the microphysical scheme as a proxy for differences in the aerosol population and the droplet activation spectra. Simulations were also performed with the land use of the urban areas set up to represent older and more current conditions. Results indicate that increased pollution (decreased urban area) led to an average precipitation decrease over the mountain areas of 20%–40% (10%–20%) and an increase of 20% (30%) to the east of Mexico City. The timing of intense precipitation shifts from 1900 to 1600 LT for the polluted and decreased urban area cases when compared to a control experiment. These results add valuable information about how precipitation is modified by complex terrain and surface exchange processes in large urban areas under wet conditions.

scholarly journals Spatial Transformation of New City Area: Economic, Social, and Environmental Sustainability Perspective of Makassar City, Indonesia

2020 ◽  
Vol 55 (3) ◽  
Author(s):  
Batara Surya ◽  
Syafri ◽  
Herminawaty Abubakar ◽  
Hernita Sahban ◽  
Harry Hardian Sakti
Keyword(s):  
Land Use ◽  
Sustainable Development ◽  
Land Use Change ◽  
Urban Area ◽  
Urban Areas ◽  
Population Increase ◽  
Spatial Transformation ◽  
Spatial Expansion ◽  
City Area ◽  
New City

The spatial transformation of new urban areas into industrial urban areas impacts spatial structure, spatial patterns, and environmental degradation. This study aims to analyze the spatial transformation work as a determinant of the development of the new urban area of Metro Tanjung Bunga Makassar and analyze the relationship of spatial expansion, land use change and population increase for the growth of new city areas and the sustainable development of the Metro Tanjung Bunga area, Makassar city. The data for this study has been obtained through observation, surveys and documentation. The research approach used is a sequential explanation. According to the results, that excessive urbanization and maximum compaction led to spatial expansion towards the development of the new urban area of Metro Tanjung Bunga. Moreover, the increase in number has a dominant influence with a value of 32.3% on the growth of the new city area of Metro Tanjung Bunga, Makassar City. Spatial expansion, land use change, and population increase were determinants of growth factors in the new urban areas and they also had a significant impact on environmental quality degradation. This study recommends the importance of considering the impact of new urban spatial areas for the formulation of strategic policies on sustainable development as an effort to meet national development targets for the case of Metropolitan Cities in Indonesia.

scholarly journals How Ecosystem Services Can Strengthen the Regeneration Policies for Monumental Olive Groves Destroyed by Xylella fastidiosa Bacterium in a Peri-Urban Area

2021 ◽  
Vol 13 (16) ◽  
pp. 8778
Author(s):  
Teodoro Semeraro ◽  
Elisa Gatto ◽  
Riccardo Buccolieri ◽  
Valentina Catanzaro ◽  
Luigi De Bellis ◽  
...  
Keyword(s):  
Land Use ◽  
Ecosystem Services ◽  
Land Cover ◽  
Cultural Heritage ◽  
Urban Area ◽  
Urban Areas ◽  
Xylella Fastidiosa ◽  
Trade Offs ◽  
Olive Groves ◽  
Olive Trees

The Apulian Region (Italy) is a socio-ecological system shaped by the millennial co-evolution between human actions and ecological processes. It is characterized by monumental olive groves protected from Regional Law 14/2007 for the cultural value of the landscape, currently threatened by the spread of a devastating phytopathogen, the bacteria Xylella fastidiosa. The aim of this paper is to apply landscape resilience analysis focusing on ecosystem services to understand the potential effects and trade-offs of regeneration policies in a peri-urban area characterized by monumental olive groves land cover. The study involved land-cover and land-use analysis, supported by a survey on the inhabitants and an ecosystem services analysis. The results showed a mismatch between the agroecosystem and the social and economic use linked to leisure or hospitality. The study area was defined as a peri-urban landscape characterized by tourist use. From the interviews of the users, the cultural heritage of olive groves seems linked to the presence of olive trees like a status quo of the landscape and olive oil productions. The culture aspect could thus be preserved by changing the type of olive trees. In addition, the analysis showed that the microclimate could be preserved and enhanced in terms of air temperature and thermal comfort, by replacing the olive trees with varieties resistant to Xylella, such as cv. Leccino. Therefore, regeneration policies that promote replacing dead olive groves with new olive trees could be efficient to stimulate social components of the landscape and improve the resilience of ecosystem services in peri-urban areas in the interest of the cultural heritage of the users and benefits that they provide. An ecosystem services analysis at a local scale could be a strategy for an integrated regenerate approach between land-use and land-cover with social, ecological, and economic evolutions vision orientated to a sustainable and desirable future.

scholarly journals Implementation of Prototyping Method on Website Development of Land use Mapping

2019 ◽  
Author(s):  
Ginanjar Wiro Sasmito
Keyword(s):  
Land Use ◽  
Urban Areas ◽  
Limited Resource ◽  
The Other ◽  
Land Supply ◽  
Website Development ◽  
Other Hand ◽  
Speed Up ◽  
Urban Activity

Increasing diversity of urban activity attracts many people to try their fate in urban areas so as to heighten the flow of urbanization. This resulted in a large demand for land supply to accommodate the increasing number of city dwellers. On the other hand, land is a very limited resource and cannot be created or renewed, so the problem that often arises is the proliferation of slum and squatter areas in urban areas. The solution to the problem is to produce a land use website. By using the prototyping method of land use website is generated in order to speed up the development of website and to really fit with the wishes and needs of the client

scholarly journals LAND USE CLASSIFICATION USING DEEP MULTITASK NETWORKS

2020 ◽  
Vol XLIII-B3-2020 ◽  
pp. 17-21
Author(s):  
J. R. Bergado ◽  
C. Persello ◽  
A. Stein
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Urban Areas ◽  
Large Scale ◽  
Urban Land ◽  
Urban Land Use ◽  
The Other ◽  
Classification Task ◽  
Land Use Classification ◽  
Convolutional Network

Abstract. Updated information on urban land use allows city planners and decision makers to conduct large scale monitoring of urban areas for sustainable urban growth. Remote sensing data and classification methods offer an efficient and reliable way to update such land use maps. Features extracted from land cover maps are helpful on performing a land use classification task. Such prior information can be embedded in the design of a deep learning based land use classifier by applying a multitask learning setup—simultaneously solving a land use and a land cover classification task. In this study, we explore a fully convolutional multitask network to classify urban land use from very high resolution (VHR) imagery. We experimented with three different setups of the fully convolutional network and compared it against a baseline random forest classifier. The first setup is a standard network only predicting the land use class of each pixel in the image. The second setup is a multitask network that concatenates the land use and land cover class labels in the same output layer of the network while the other setup accept as an input the land cover predictions, predicted by a subpart of the network, concatenated to the original input image patches. The two deep multitask networks outperforms the other two classifiers by at least 30% in average F1-score.

scholarly journals Characteristics of Post Socialist Spatial Development of the Functional Urban Area of Veszprém, Hungary

2019 ◽  
Vol 12 (3-4) ◽  
pp. 33-43 ◽  
Author(s):  
Vera Iváncsics ◽  
Krisztina Filepné Kovács
Keyword(s):  
Land Use ◽  
Urban Area ◽  
Urban Sprawl ◽  
Urban Areas ◽  
Urban Landscape ◽  
Land Use Changes ◽  
Sustainable Land Use ◽  
Nature Protection ◽  
Important Trend ◽  
Urban Rural

Abstract The post-socialist era resulted remarkable changes in urban landscape in Eastern Europe and in Hungary. The special circumstances caused moderate level of urbanisation and special patterns of urban sprawl, traceable in land use changes. The urban sprawl and suburbanisation became an important trend around smaller Hungarian cities as well. Regulators are eager to rule the evolution of spaces, however, it is hard to control all aspects of land use. The research presented in this paper shows the dynamics of new artificial areas with the help of land use changes from the Corine Database for the functional urban area around Veszprém and attempts to find the most important policy responses to the growing artificial surfaces after transition. The research questions are: What are the most important trends in changing in-built areas in a small city after the transition? What kind of new artificial areas appeared and where are they situated? Were the land use plans and nature protection effective tools for manage urban sprawl? With the help of Corine land use changes between 1990-2018 the most important spatial changes are shown, and the different peri-urban areas are compared around the core town. Attention is drawn to the importance of regulation for sustainable land use and protection of resources. It also highlights the importance of the regulatory power of municipalities. Changes in the environment of Veszprém may give inspiration for the rethinking the relationship of urban-rural, and catchment area and core town.

scholarly journals MANAJEMEN LIMPASAN AIR HUJAN DI DAERAH PERKOTAAN DENGAN RAIN GARDEN DAN MENJAGANYA DARI KEBERADAAN NYAMUK

2017 ◽  
Vol 3 (2) ◽  
Author(s):  
Nova Annisa ◽  
Hafiizh Prasetia
Keyword(s):  
Sustainable Development ◽  
Life Cycle ◽  
Urban Area ◽  
Urban Areas ◽  
Descriptive Analysis ◽  
Good Treatment ◽  
The Other ◽  
Rain Garden ◽  
Runoff Water ◽  
Concrete Layer

ABSTRAKRain garden adalah salah satu praktik pembangunan berkelanjutan untuk mengatasi masalah limpasan air hujan. Rain garden sangat cocok sekali dikembangkan di daerah perkotaan dimana lahan resapan sudah mulai hilang digantikan dengan lapisan beton yang kaku. Tujuan dari kajian ini adalah mengungkapkan bagaimana model rain garden untuk daerah perkotaan dan bagaimana cara untuk menjaganya dari keberadaan nyamuk. Kajian dilakukan dengan analisis deskriptif. Berdasarkan hasil pengamatan diketahui bahwa model rain garden dapat dikembangkan untuk daerah perkotaan. Model rain garden yang satu dan yang lainnya dapat dihubungkan dengan pipa atau gorong-gorong sehingga memungkinkan rain garden berjalan optimal. Rain garden yang bagus harus tidak ada genangan lebih dari 72 jam. Hal ini bertujuan untuk menjaga dari keberadaan nyamuk yang dianggap mengganggu. Perawatan yang bagus terhadap rain garden juga mampu untuk menjaganya dari nyamuk. Kata Kunci: rain garden, nyamuk, siklus hidup  ABSTRACT Rain garden is one of sustainable development practices to overcome the problem of runoff water. Rain garden is very well suited to develop in urban areas where the recharge ground has begun to disappear replaced with a rigid concrete layer. The purpose of this study is to reveal how the rain garden model for urban areas and how to guard against the presence of mosquitoes. The study was conducted by descriptive analysis. Based on the observation, it is known that rain garden model can be developed for urban area. Rain garden models that one and the other can be connected with a pipe or culvert that allows rain garden to run optimally. A nice rain garden should have no puddle over 72 hours. It aims to keep from the presence of mosquitoes that are considered disturbing. Good treatment of rain garden is also able to keep it from mosquitoes. Keywords: rain garden, mosquitoes, life cycle

Sign in / Sign up

Export Citation Format

Share Document