Journal of geographic information system最新文献_第6页

Managing Road Maintenance Using Geographic Information System Application 利用地理信息系统应用管理道路养护

Journal of geographic information system Pub Date : 2010-10-29 DOI: 10.4236/jgis.2010.24030

M. Yunus, Hamidah Bt. Hassan

{"title":"Managing Road Maintenance Using Geographic Information System Application","authors":"M. Yunus, Hamidah Bt. Hassan","doi":"10.4236/jgis.2010.24030","DOIUrl":"https://doi.org/10.4236/jgis.2010.24030","url":null,"abstract":"The development and economic growth of a nation is closely related to its available transportation system. Good and efficient road transport infrastructure facilities will promote industrial and socio-economic development. To provide safety and comfort to road users, a comprehensive road maintenance schedule must be formulated and adopted to ensure those roads are in good condition at all times. Preventive maintenance works, such as road rehabilitation will help to reduce the major road repairs and expenditure. Prior to this, a good database, gathered through GIS will be necessary in order to ensure maintenance is done effectively. Geographic Information System (GIS) is said to be one of the useful tools that can be utilized to manage database in road maintenance engineering. This system is capable of storing, managing, analyzing, computing and displaying all forms of geographical data for road maintenance works. In this study, the author has adopted GIS application software – ArcView, and has reviewed and analyzed its effectiveness in managing road database. These data are then used to assist the management to ensure effective and systematic road maintenance. A typical model of roads in Penang, Malaysia is used as a case study to further clarify the application of GIS in road maintenance.","PeriodicalId":93313,"journal":{"name":"Journal of geographic information system","volume":"29 1","pages":"215-218"},"PeriodicalIF":0.0,"publicationDate":"2010-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76073400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16

Regional Economic Geography with Externalities, Congestion, and Fiscal Policies in a Small-Open Growth Economy 具有外部性、拥塞性和财政政策的小开放增长经济区域经济地理

Journal of geographic information system Pub Date : 2010-10-29 DOI: 10.4236/jgis.2010.24028

Wei-bin Zhang

{"title":"Regional Economic Geography with Externalities, Congestion, and Fiscal Policies in a Small-Open Growth Economy","authors":"Wei-bin Zhang","doi":"10.4236/jgis.2010.24028","DOIUrl":"https://doi.org/10.4236/jgis.2010.24028","url":null,"abstract":"This paper develops a two-regional growth model with amenity, capital accumulation and regional public goods with public goods and fiscal policies. The economy consists of two regions and each region consists of the industrial sector and public sector. The industrial sector provides goods in perfectly competitive markets. The public sector, which is financed by the regional government’s tax incomes, supplies regional public goods. The public goods affect both firms and households. We show how to find equilibrium values of the dynamic system and simulate model. Then, we carry out comparative statics analysis with regard to parameter changes in tax rates, congestion and amenity. Our comparative statics analysis provides some important insights. For instance, a main difference between the effects of increasing the two regions’ tax rates on the output is that as the technologically advanced region’s (the other region’s) tax rate on the industrial sector is increased, the national industrial output, national capital employed by the economy, and the national wealth are increased (reduced). In the region which increases the tax rate, the wage rate, consumption and wealth per capita, output per labor force, the population, and land rent are increased, and the corresponding variables in the other region are reduced.","PeriodicalId":93313,"journal":{"name":"Journal of geographic information system","volume":"3 1","pages":"201-209"},"PeriodicalIF":0.0,"publicationDate":"2010-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74571070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

An Information System for Risk-Vulnerability Assessment to Flood 洪水风险易损性评估信息系统

Journal of geographic information system Pub Date : 2010-07-29 DOI: 10.4236/jgis.2010.23020

S. Karmakar, S. Simonovic, Angela Peck, J. Black

{"title":"An Information System for Risk-Vulnerability Assessment to Flood","authors":"S. Karmakar, S. Simonovic, Angela Peck, J. Black","doi":"10.4236/jgis.2010.23020","DOIUrl":"https://doi.org/10.4236/jgis.2010.23020","url":null,"abstract":"An exhaustive knowledge of flood risk in different spatial locations is essential for developing an effective flood mitigation strategy for a watershed. In the present study, a riskvulnerability analysis to flood is performed. Four components of vulnerability to flood: 1) physical, 2) economic, 3) infrastructure and 4) social; are evaluated individually using a Geographic Information System (GIS) environment. The proposed methodology estimates the impact on infrastructure vulnerability due to inundation of critical facilities, emer gency service stations and bridges. The components of vulnerability are combined to determine an overall vulnerability to flood. The exposures of land use/land cover and soil type (permeability) to flood are also considered to include their effects on severity of flood. The values of probability of occurrence of flood, vulnerability to flood, and exposures of land use and soil type to flood are used to finally compute flood risk at different locations in a watershed. The proposed methodology is implemented for six major damage centers in the Upper Thames River watershed, located in the SouthWestern Ontario, Canada to assess the flood risk. An information system is developed for systematic presentation of the flood risk, probability of occurrence of flood, vulnerability to flood, and exposures of land use and soil type to flood by postal code regions or Forward Sortation Areas (FSAs). The flood information system is designed to provide support for different users, i.e., general public, decisionmakers and water management professionals. An interactive analysis tool is developed within the information system to assist in evaluation of the flood risk in response to a change in land use pattern.","PeriodicalId":93313,"journal":{"name":"Journal of geographic information system","volume":"8 1","pages":"129-146"},"PeriodicalIF":0.0,"publicationDate":"2010-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78654669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 74

A Hybrid Approach towards the Assessment of Groundwater Quality for Potability: A Fuzzy Logic and GIS Based Case Study of Tiruchirappalli City, India 基于模糊逻辑和GIS的印度蒂鲁奇拉帕利市地下水饮用水质综合评价方法研究

Journal of geographic information system Pub Date : 2010-07-29 DOI: 10.4236/jgis.2010.23022

N. Kumar, S. Mathew, G. Swaminathan

{"title":"A Hybrid Approach towards the Assessment of Groundwater Quality for Potability: A Fuzzy Logic and GIS Based Case Study of Tiruchirappalli City, India","authors":"N. Kumar, S. Mathew, G. Swaminathan","doi":"10.4236/jgis.2010.23022","DOIUrl":"https://doi.org/10.4236/jgis.2010.23022","url":null,"abstract":"The present study aims to develop a new hybrid Fuzzy Simulink model to assess the groundwater quality levels in Tiruchirappalli city, South India. Water quality management is an important issue in the modern times. The data collected for Tiruchirappalli city have been utilized to develop the approach. This is illustrated with seventy nine groundwater samples collected from Tiruchirappalli city Corporation, South India. The characteristics of the groundwater for this plain were monitored during the years 2006 and 2008. The quality of groundwater at several established stations within the plain were assessed using Fuzzy Logic (FL) and GIS maps. The results of the calculated FL and GIS maps with the monitoring study have yielded good agreement. Groundwater quality for potability indicated high to moderate water pollution levels at Srirangam, Ariyamangalam, Golden Rock and K. Abisekapurm zones of the study area, depending on factors such as depth to groundwater, constituents of groundwater and vulnerability of groundwater to pollution. Fuzzy logic simulation approach has shown to be a practical, simple and useful tool to assess groundwater quality assessment for potability. This approach is capable of showing and updating the water quality assessment for drinking.","PeriodicalId":93313,"journal":{"name":"Journal of geographic information system","volume":"16 1","pages":"152-162"},"PeriodicalIF":0.0,"publicationDate":"2010-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83394129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

GPS- vs. DEM-Derived Elevation Estimates from a Hardwood Dominated Forest Watershed 来自阔叶林流域的GPS与dem的高程估算

Journal of geographic information system Pub Date : 2010-07-29 DOI: 10.4236/jgis.2010.23021

L. Kiser, J. Kelly

引用次数: 4

Contribution of Topographically Explicit Descriptors of Landscape Measures for Application in the Vector Data Environment 景观测量的地形显式描述符对矢量数据环境应用的贡献

Journal of geographic information system Pub Date : 2010-07-29 DOI: 10.4236/jgis.2010.23023

Jomaa Ihab, Y. Auda

{"title":"Contribution of Topographically Explicit Descriptors of Landscape Measures for Application in the Vector Data Environment","authors":"Jomaa Ihab, Y. Auda","doi":"10.4236/jgis.2010.23023","DOIUrl":"https://doi.org/10.4236/jgis.2010.23023","url":null,"abstract":"Digital terrain models (DTMs) are not commonly used to integrate for landscape spatial analysis. Two dimensional patchcorridormatrix models are prototypes in landscape spatial ecology analysis. Previous studies have motivated ecologists to integrate terrain models in landscape analysis through 1) adjusting areas and distance calculations prior computing landscape indices; 2) designing new indices to capture topography and 3) searching the possible relationship between topographic characteristics and vegetation patterns. This study presents new indices called Relative number of Topographic Faces (RTF) and Simplicity of topographic Faces (STF) that can be easily computed in a GIS environment, capturing topographical features of landscapes. Digital terrain model was first prepared and topographic units were extracted and installed in computing the suggested indices. Mountainous and rugged topography in Lebanon was chosen on a forested landscape for the purpose of this study. The indices were useful in monitoring changes of topographic features on patch and landscape level. Both indices are ecologically useful if integrated in landscape pattern analysis, especially in areas of rugged terrains.","PeriodicalId":93313,"journal":{"name":"Journal of geographic information system","volume":"24 1","pages":"163-168"},"PeriodicalIF":0.0,"publicationDate":"2010-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83284247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Neotectonic Evidences of Rejuvenation in KaurikChango Fault Zone, Northwestern Himalaya 喜马拉雅西北部KaurikChango断裂带新生的新构造证据

Journal of geographic information system Pub Date : 2010-07-29 DOI: 10.4236/jgis.2010.23024

M. Joshi, G. Kothyari, Arun Ahluvalia, P. Pant

引用次数: 13

Geospatial Mapping of Singhbhum Shear Zone (SSZ) with Respect to Mineral Prospecting 新兴剪切带地质空间填图与找矿

Journal of geographic information system Pub Date : 2010-07-29 DOI: 10.4236/jgis.2010.23025

Bijay Singh Jimly Dowerah

引用次数: 8

Double Polarization SAR Image Classification based on Object-Oriented Technology 基于面向对象技术的双偏振SAR图像分类

Journal of geographic information system Pub Date : 2010-05-14 DOI: 10.4236/jgis.2010.22017

Xiuguo Liu, Yongsheng Li, Wei Gao, Lin Xiao

引用次数: 5

Research on Data Sharing between AutoCAD and MapGIS in Cadastral Database Construction AutoCAD与MapGIS在地籍数据库建设中的数据共享研究

Journal of geographic information system Pub Date : 2010-05-14 DOI: 10.4236/jgis.2010.22019

Jiajia Liu, Yang Cai

引用次数: 0