The present study utilized a multi-criteria evaluation (MCE) method in a geographical information systems (GIS) environment to evaluate the suitability of potential landfill sites in Northern Cyprus. To determine the most suitable landfill site, one of the MCE techniques, called analytical hierarchy process (AHP), was combined with a GIS to examine 12 criteria: distance from waste generation centres; distance from roads; slope; distance from surface waters; distance from groundwater areas; distance from environmentally sensitive areas; vegetation types; soil productivity; soil permeability; distance from settlements; distance from cultural sites; distance from stone quarries. The relative importance weights of these criteria were estimated using AHP and criteria maps were developed by using GIS spatial analysis. At the final stage two different suitability maps were produced using two different groups of weights. The first group suitability map had 11 052 (ha) with high suitability class, whereas the high suitability areas decreased to 5982 (ha) in the second group. Moreover, the seven potential sites identified within the first group decreased to four in the second suitability map. However, potential sites such as Gungor, Degirmenlik, Kirklar and Cayonu had similarities with higher suitability values and these same locations were regarded as suitable according to the both first and second suitability map results.

The expansion of urban areas leads the loss of green spaces causing many environmental and economic problems. The infrastructure has been carried to the rural areas to deal with the needs of populations, reducing the green vegetation. This isolates one habitat area from other habitats and increases the fragmentation. A green corridor can connect fragmented habitats. Thus, this research aims to analyze and provide a green corridor in four different cities of Jordan. Through study some case studies, review of articles, researches, data collection, GIS, observations and maps derived from Jordanian ministries were used for the analysis of a green corridor in four cities in the northwest of Jordan. This research provides a comprehensive planning of the biogeographically areas, ecotourism sites and variety of vegetation in the protected areas of namely, Ajloun Forest Reserve and Dibben Forest Reserve, to link them in the biodiversity and conservation regions of the Al-Salt and north Amman, after identifying these diverse areas of vegetation cover and wildlife in each governorate. In addition, the research discusses ecological, environmental and economic effects of applying a green corridor as a sustainable city approach in Jordan. In other words, the purpose of this study is to suggest a sustainable proposal by analyzing green area zones and green corridor axes to improve the nature and the environment in Jordan. This proposal adapts urban areas with the establishment of green corridor connecting conservation areas in Jerash and Ajloun to Al-Salt and north of Amman. Such a green corridor can lead an increase of local and international tourism which may improve the economic strength and can increase the job opportunities for citizens to live in a more ecological urban environment. Keywords: Environmental sustainability; green corridor; connectivity; planning; Jordan

Abuja, the federal capital of Nigeria was created when Lagos failed to function as the Federal Capital due to the resultant urban problems as a result of land availability. Currently, the rate of implementation of the master plan and urban development is outpaced by the rate of urban growth due to urbanization, as a result exerting a lot of strain on the urban facilities of the city which affects the life of the residents. This study is aimed at identifying a suitable site for future sustainable urban growth in Abuja. The study evaluates urban growth policies namely; social equity, compact growth and environmental protection into spatial layers as the framework for multicriteria evaluation using the geographical information system. The spatial layers are the distance to road, distance to the central area, distance to educational facilities, distance to green/open spaces, soil, slope, vegetation, natural features, and pollution sites were evaluated and prioritized as per judgment of relevant experts. The influencing weights among the layers were computed using Analytical Hierarchy Process. The overall Consistency Ratio (CR) of the module was 0.04 and fulfilled the tolerable threshold (i.e., CR ≤ 0.1). The Weighted Linear Combination (WLC) function of ArcGIS model builder has been applied to generate a suitability map. The map clearly presents the areas that are suitable for future sustainable urban development and also areas that are not, reducing the possibility of future disaster.

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Due to increasing population and expansion of cities, urban planning issues are becoming more important worldwide. It is realized that biological methodologies ought to be coordinated into urban arranging activities. Particularly in European cities, creating greenways and green corridors is a very recent phenomenon. The advancement of green space along urban waterways could moderate urban warmth island impacts, improve the physical and mental prosperity of city occupants, improve flood resilience and could also sustain biodiversity. The Pedieos River is the longest river in Cyprus. Like most of streams on the island, it is a non-enduring waterway, of fleeting nature that for the most part streams during the blustery winter months or after overwhelming precipitation occasions. A literature review was undertaken to discover the importance of rivers within the urbanized areas. It is known that the Pedieos River is firmly connected to the historical backdrop of Nicosia as it is one reason for the city's presence at the site. The increase of impermeable areas as a result of urbanization is also one of the main causes for flooding in recent years. In this research, the current situation of the river was investigated and its possible rehabilitation discussed for more sustainable city. The aim of this study is to recommend a feasible proposition by examining green territory zones and reason green passages along the Pedieos River so as to improve the living condition of Nicosia city.  Keywords: Greenway, river, Pedieos River, urban planning