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Volume XVII |

Using GIS methods to analyze spatial characteristics of urban transportation system in Craiova city

Abstract: In a world of technology, where the increasing urbanization tries to cope between sprawl and the need to actively manage a sustainable land and resources use, transportation remains among the main challenges for physically active cities like Craiova. The city is the major growth pole located in South-West Oltenia, which connects most of the settlements in the region (both rural or urban) economically and socially. Thus, the transportation system represents the key element in the relation between time and place in this metropolitan area in a continuous development process. While the city expands, the transportation network, inherited from the past, suffers a slower transformation, despite the increasing demand for mobility coming from both passengers and freights. The spatial analysis of new residential areas emerged in the continuous process of urban expansion indicate an additional pressure on the existing road infrastructure and which intensifies especially during peak hours on the access routes to the city and city center. Starting from the analysis of the spatial structure and distribution of the pre-existent rural structure, the present study tries to emphasize the need for an innovative and integrated infrastructure that should connect at its best space, services and people in terms of speed, capacity and cost efficiency. First, using the GIS mapping methods, the authors present the spatial distribution of the transport infrastructure that is correlated with population density and land use, also analyzing the areas with high density of jobs and elements of the urban landscape that may generate attractivity. A special attention is paid to the urban form – street pattern relation, exemplified by case studies in problematic intersections of Craiova city. All these factors are important in order to establish the present capacity of the urban transportation system during peak hours, and what are the main deficiency of the transport system: traffic jams, insufficient parking places, need of new connections in public transportation. The results of the research may be used to improve passenger transport inside the city of Craiova and may also suggest some solutions that mitigate for the introduction of new concepts like car sharing, electric public transportation, hybrid vehicles or new alterna-tives for peoples’ movement.

Volume XVI |

Time- spaces in Hungary

Abstract: This paper firstly gives a general outline about the features of various spaces. Time spaces and cost spaces have non-metric characteristics, moreover, time spaces and cost spaces are not continuous. Therefore, topographic maps are not always an appropriate basis for cognitive information processing, the everyday behaviour and the study of spatial relationships. The paper demonstrates the differences between geographical space and time-spaces at two different scales, such as the road network time-space of Hungary and a district of the capital city Budapest. With the first example the rapidly changing Hungarian time-space during the last two decades can be vividly demonstrated, thanks to new motorway construction. The second example compares different types of space, as for example the difference between the time- space of a pedestrian and a vehicle.

Volume XV |

A Special Issue: Hydrological Behaviour in Small Basins Under Changing Conditions

Abstract: The present paper aim to overview on the Euromediterranean Network of Experimental and Representative Basins conference – ERB 2016. The 16th Biennial Conference ERB was held 5–8 September 2016 in Bucharest, Romania, and was hosted by National Institute of Hydrology and Water Management. The conference program focused on the theme “Hydrological behaviour in small basins under changing conditions”. The conference was followed by a field work on microscale hydrologic monitoring of water balance elements in Voinești Experimental Basin.
This special issues of Forum geografic/Geographical Phorum – Geographical studies and environment protection research (indexing in international databases) includes selected works – contained a variety of hydrology subjects – presented at the Euromediterranean Network of Experimental and Representative Basins conference. All published papers are assigned to Digital Object Identifier (DOI).

Volume XV |

Geodiversity and geoheritage in Geography teaching for the purpose of improving students’ competencies in education for sustainable development

Abstract: Sustainable development has become one of the burning issues on a global, local and individual levels as a result of climate changes, pollution, rapid development and changes in the global information, economic, industrial and business sectors and value systems. In this sense, education for sustainable development, as part of lifelong learning, has become one of the most important strategic and educational policy issues in Serbia. The aim of this paper is to highlight the potential of geography as a school subject, with special reference to the role of the subject matter of geoheritage and geodiversity in education for sustainable development. The aim of pointing the benefits of integrated and out-of-classroom approaches in teaching geography, which favour an active, experiential and exploratory approach to learning about geodiversity and geoheritage, is that students can acquire competencies in sustainable development. As outcomes of geography classes, competencies also represent a basis for raising awareness and increasing accountability and responsibility in individuals for preserving geoheritage and geodiversity as part of the Serbian national treasure.

Volume XIV |

Geotechnical Properties of Some Soils in a Tar Sand Area of Southwestern Nigeria

Abstract: Engineering properties of some soil samples in Idiobilayo and Idiopopo areas of Southwestern Nigeria were studied with the aim of determining their geotechnical properties which can aid in the exploitation plan of the tar sands deposits in the area.
A total of six sampling locations with three samples each were established in the study area. Samples of soil both disturbed and undisturbed were obtained from the trial pits to a depth of about 1.5m at 0.5m vertical interval. The disturbed samples were subsequently subjected to classification tests such as grain size distribution and consistency limits using British standards 1377 procedure. However, the undisturbed samples were subjected to permeability test.
Results obtained in this study showed that the area of study is underlain essentially by sandy soils, with substantial silty content. Clay and gravel content are quite minimal. The particle size distribution curves confirmed a general dominance of silt to coarse-grained sand size particles in the soil matrix with minor but complimentary clayey and gravelly materials. Amounts of fines in the soils are less than 50% except in trial pts 4 and 5 where they are slightly above 50%.
The soils consist of sand (60.0 %) and silt (35.0 %). The percentage of fines (silt and clay sized fraction) in the soils was about 38.0 %, and makes the soils good base for landfill, since recommended percentage of fines, should not be less than 20.0 %. However the obtained values of permeability coefficient of 5.5 X 10-6 mm/s to 1.2 X 10-4 mm/s call for the lining of the base to avoid groundwater pollution by leachates.