Acknowledged the importance of the Road transportation to Brazilian economy, especially when considering cargo transportation, Ipea has studied the main economical and institutional problems that involve Brazilian roads. Firstly, we present an overview of the road system from 1950's expansion to...

This paper has two main purposes. The first is to present, to analyze and to suggest road infrastructure investment and financing policies in Brazil. The second objective is to analyze toll road concessions, with emphasis on toll tariffs. For the last eight years federal road investment (at...

The waterway transportation is considered the most efficient. Moreover, Brazil has many rivers, besides the extensive coastline, appropriate to navigation. However, this mode of transport is not widely used in the country, especially inland. This study evaluates the possible causes for this....

This paper presents a new methodology for hierarchical spatial clustering of contiguous polygons, based on a geographic coordinate system. The proposed algorithm is built upon a modification of traditional hierarchical clustering algorithm, commonly used in the multivariate analysis literature....

This paper studies a methodology for hierarchical spatial clustering of contiguous and homogeneous polygons, based on a set of binary variables. The proposed algorithm is built upon a modification of traditional agglomerative hierarchical clustering algorithm, commonly used in the multivariate...

The Urban Network and Territory research, developing in the Directory of Studies and Regional, Urban and Environmental Policies (Dirur) of the Ipea, comes following the activities focused on dynamic analysis, characterization and prospect about the urban agglomerations and the urban-regional...