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Modello previsionale dell’inquinamento prodotto dalle acque di ruscellamento stradale nei corpi idrici ricettori
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Automated distress evaluation
No full textThe Automated distress collection systems have been developed over the years to evaluate the condition of road pavements. The simplest method is to have a person riding or walking along the road and visually evaluate it. However, at network level, there are a number of problems with this approach, related to the total length of roads that need to be surveyed. Automated systems have been developed in an attempt to make the evaluation procedure more consistent. This paper deals with an automated system of survey and evaluation of road pavement distresses, studied in a research program for the preparation of a Mobile Mapping System. The vehicle was equipped to survey the geometric characteristic of road for the realization of cadastre. The acquisition of the images of the pavement can be realized during the collection of images for the cadastre, by means of an added line scan on the vehicle. The distress degree can be estimated in a completely automatic way on these images. In the process of asset management, the appraisal of the pavement conditions represents one of the aspects more important in a pavement management system. The automatic survey and evaluation of pavement distresses are still a relatively new technology for which an official protocol does not exist yet. The studied methodology represents a fast and inexpensive instrument to survey the condition of the pavement at network level. A pavement condition indicator can be defined from the images: the Unified Crack Index (UCI). UCI is valuated completely automatically, without man work. This method eliminates the subjective and arbitrary nature of the evaluations due to human nature, but it eliminates the experience that only a prepared operator has. Therefore, the system gives the chance to interact with semi-automatic systems if the results of the automatic valuation need a deepening
Il progetto pilota avviato dalla provincia di Teramo. Innovazione e tecnologie contro gli incidenti
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Infrastrutture per la mobilità pedonale - Breve guida ragionata alla progettazione (prima parte)
No full textGuida ragionata alla progettazione di infrastrutture per la mobilità pedonal
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Infrastrutture per la mobilità pedonale - Breve guida ragionata alla progettazione (seconda parte)
No full textGuida ragionata alla progettazione di infrastrutture per la mobilità pedonal
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