In our previous research, we compared the actual route recorded by a GPS device “PhotoTrackr” and the optimal vehicle route derived by using ArcGIS Network Analyst tool. VRP is the fundamental problem in the research fields of transportation, we focus on variations of CVRPTW (Capacitated VRP with Time Windows). Various types of VRP are studied to determine the optimal route under various constr...

Purpose – The purpose of this paper is to provide an overview of free and open source (FOSS) geographic information system (GIS) software within the broader contexts of the open source software movement and developments in GIS, and pose the question of whether libraries and academic departments should consider adopting FOSS GIS. Design/methodology/approach – The process of creating a basic them...

While research is underway at ESRI on solutions for adaptive and contextual generalization, the development of bulk generalization tools under the geoprocessing framework in ArcGIS has continued. One of the essential design aspects is to extend and redefine the scope of automation. Another is how to support the evaluation and further optimization of the output. It is obviously important to use ...

In order to enhance in terms of accuracy and predict the modeling of the potential distribution of species, the integration of using principal components of environmental variables as input of maximum entropy (MaxEnt) has been proposed in this study. Principal components selected previously from the principal component analysis results performed in ArcGIS in the environmental variables was used...

SDMtoolbox 2.0 is a software package for spatial studies of ecology, evolution, and genetics. The release of SDMtoolbox 2.0 allows researchers to use the most current ArcGIS software and MaxEnt software, and reduces the amount of time that would be spent developing common solutions. The central aim of this software is to automate complicated and repetitive spatial analyses in an intuitive graph...

This paper present a simple method of assessing hydropower generation potential of an ungauged Stream/River. Sites on Rukarara and Mushishito in the southern province of Rwanda were selected as case studies. The approach uses flow data of an analogue site to generate the data of an ungauged river. During the study a reconnaissance field visits were conducted. The concerned catchments were delin...