Assessment of the homogeneity of volunteered geographic information in South Africa

The potential for volunteer groups to contribute geographic data to National Mapping Agencies has been widely recognised. Several investigations have been done to determine the geometric accuracy of this data for the purposes of national mapping. Beyond accuracy, from a production perspective National Mapping Agencies will also be interested in...

Innovative governance of sustainable urban development: A comparative analysis

More than half of the world population lives in urban areas concentrating and increasing the magnitude of social and environmental impacts. The potential role of cities in a transition to a sustainable society started to be widely recognized after the 1992 Rio conference where the Agenda 21 program was signed. Since then, a number of urban...