Down the centuries, a direct link had been developed between increase in mobility and increase in wealth. On the other hand, air emission of greenhouse gases (GHG) due to vehicles equipped with internal combustion engines can be regarded as a negative pressure over the environment. In the coming decades, road transport is likely to remain a significant contributor to air pollution in cities. Many urban trips cover distances of less than 6 km.

Nelle società contemporanee i conflitti territoriali sono ormai diventati più frequenti e diffusi dei conflitti sociali. Il loro tratto caratteristico è costituito da comunità che difendono il loro territorio da aggressioni esterne che possono essere costituite tanto da manufatti invasivi, quanto da insediamenti umani sgraditi. Questo articolo si propone di rispondere a tre domande: 1) perché si sono diffusi in questi ultimi venti anni? 2) qual è il “vero” oggetto del contendere? 3) come possono essere affrontati, con quali possibili sbocchi?

Urban footprint refers to the proportion of paved surface (built up, roads, etc.) with the reduction of other land use types in a region. Rapid increase in the urban areas is the major driver in landscape dynamics with the significant erosion in the quality and quantity of the natural ecosystems. The urban expansion process hence needs to be monitored, quantified and understood for effective planning and the sustainable management of natural resources.

Resumen

The objective and strategy-oriented development goal of Phnom Penh urbanization aim to:

- Orient land usage and ensure the existing potential value of the Phnom Penh capital city in sustainable, efficient and equitable ways, in order to support the socio-economic development, ensure food security, pulchritude and environmental quality.

- Orient the development with equality, equity and correspondence between Phnom Penh capital city, city, provinces of the country and other states’ cities.