Are roads key to raising living standards in poor rural areas? This study evaluates the impact of the World Bank–financed Viet Nam rural transport project I, a large-scale rural roads rehabilitation project that aims to reduce poverty. The analysis will focus on the welfare impacts of rural roads as an input to policy discussion about how best to allocate scarce public resources for poverty red...

The efficient and high quality rendering of complex road networks—given as vector data—and high-resolution digital elevation models (DEMs) poses a significant problem in 3D geographic information systems. As in paper maps, a cartographic representation of roads with rounded caps and accentuated clearly distinguishable colors is desirable. On the other hand, advances in the technology of remote ...

Are roads the key to raising living standards in poor rural areas? This study evaluates the impact of the World Bank–financed Viet Nam rural transport project I, a large-scale rural roads rehabilitation project that aims to reduce poverty. The analysis will focus on the welfare impacts of rural roads as an input to policy discussion about how best to allocate scarce public resources for poverty...

The efficient and high quality rendering of complex road networks—given as vector data—and high-resolution digital elevation models (DEMs) poses a significant problem in 3D geographic information systems. As in paper maps, a cartographic representation of roads with rounded caps and accentuated clearly distinguishable colors is desirable. On the other hand, advances in the technology of remote ...

Automatic extraction of linear topographic objects, such as, roads, rivers, or power lines, is an important topic for topographic mapping. In case of roads, an automatic extraction from Synthetic Aperture Radar (SAR) imagery is rather difficult, due to the speckle effect and the limited spatial resolution in relation to the road width. In this paper we investigate the additional use of multifre...