1,721,091 research outputs found
Methodology to assess vulnerability of roads under hydrogeological events
No full textFor a long time the reliability of a road net under calamitous events has been ignored into the management process. Nevertheless road nets have a very important and critical role into the different steps of emergency management.
Indeed, to assess the vulnerability of a road net before that a calamitous evet occurs it is necessary, not only to realize emergency and recovery plans, but also to plan apposite adjustment interventions on the net.
Nowadays literature shows different methodologies to assess the seismic vulnerability of a road section. We do not have the same informations to evaluate the hydrogeological vulnerability cause of interactive elements complexity.
This paper shows the initial phase of a wider research aimed to the definition of a criterion for the valuation of the qualitative and quantitative vulnerability of a road section to hydrogeological events.
The first step is the creation of tecnical check-lists that allow to define a qualitative level (low or high) of the vulnerability of a road section and so consequently to assess the reliability and to plan apposite adjustment interventions of the net.
The work has been lead and validated through the study of a case record of hydrogeological nature events that interested some roads in the past
La gestione e la manutenzione delle infrastrutture viarie: il degrado del sistema e gli interventi di recupero, di adeguamento e di potenziamento
No full text
La riqualificazione funzionale di un sistema viario: obiettivi e contenuti della progettazione degli interventi di adeguamento
No full textWorks for the upgrading of existing roads: assigned functions, corresponding road types, geometric and design characteristics
No full textThe answer provided to the need to transport persons, goods and information has
been prevalently that of road and motorway building based of local and sectorial
requirements, with plans drawn up in the absence of compulsory building rules.
In today’s situation it is not difficult to predict that in the short- to medium term
roads will continue to absorb most of the traffic of persons and goods. This raises
questions of management and upgrading of the roads being used; this is especially
important owing to their impact on productive sectors and the consequences they have
from the social and environmental standpoints. Thus the need to proceed to the
functional upgrading of the existing network is being emphasized more and more since
it is a part of the vaster issue of the management of the roads now in use.
Improvement in the quality of the service offered and road safety requires overall or
local works to be implemented with a series of coordinated actions to follow a
sustainable approach also from the environmental and economic viewpoints.
The overall issue of mobility requires an innovative and original effort with respect
to the traditional vision of roads limited to layout only, one that is capable of taking into
account all present and future aspects of mobility, proposing trends, programmes and
work priorities in the definition of new proposals and in the conservation and
improvement of the existing road network. The transportation system and within this the
road network must be upgraded in the light of the socioeconomic realities and future
development of the region it serves while safeguarding and making the best use of its
historical and environmental peculiarities coherently with overall economic planning.
This paper presents the results of research conducted by the University of Cagliari
on an existing infrastructure network.
The methodology adopted in the study provides indications and examples
concerning the different stages in the analysis of an existing network: from the
indication of objectives to the identification of critical situations and consequently the
definition of design alternatives capable of reaching the objectives set
Methodological proposal for road network functional upgrading
No full textThe answer provided to the need to transport persons, goods and information has been prevalently that of road and motorway building based of local and sectorial requirements, with plans drawn up in the absence of compulsory building rules.
In today’s situation it is not difficult to predict that in the short- to medium term roads will continue to absorb most of the traffic of persons and goods. This raises questions of management and upgrading of the roads being used; this is especially important owing to their impact on productive sectors and the consequences they have from the social and environmental standpoints. Thus the need to proceed to the functional upgrading of the existing network is being emphasized more and more since it is a part of the vaster issue of the management of the roads now in use.
Improvement in the quality of the service offered and road safety requires overall or local works to be implemented with a series of coordinated actions to follow a sustainable approach also from the environmental and economic viewpoints.
The overall issue of mobility requires an innovative and original effort with respect to the traditional vision of roads limited to layout only, one that is capable of taking into account all present and future aspects of mobility, proposing trends, programmes and work priorities in the definition of new proposals and in the conservation and improvement of the existing road network. The transportation system and within this the road network must be upgraded in the light of the socioeconomic realities and future development of the region it serves while safeguarding and making the best use of its historical and environmental peculiarities coherently with overall economic planning.
This paper presents the results of research conducted by the University of Cagliari on an existing infrastructure network.
The methodology adopted in the study provides indications and examples concerning the different stages in the analysis of an existing network: from the indication of objectives to the identification of critical situations and consequently the definition of design alternatives capable of reaching the objectives set
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