Search results for " roads"
showing 10 items of 25 documents
Effect of deicing salts on urban soils and health status of roadside trees in the Opole region.
2004
This article reports on a study whose aim was to evaluate the impact of snow removal salts on urban soil properties and the health of roadside trees. The evaluation was done by chemical analyses of soil samples and plant matter combined with toxicity testing, performed with a Protoxkit F, a protozoan microbiotest. Samples were collected at 45 locations on three main roads in the town of Opole (Poland). The roads differed in the snow removal technology and amount of chemical substances (mostly NaCI) used on them during the winter. The study showed that when soil was exposed to a high level of NaCI, it tended to be more alkaline and also exhibited increased content of Na + and Cl - . The toxi…
A methodology to identify critical road sections by means of cyclist's fatigue
2020
This paper proposes a procedure for determining cyclists’ fatigue state along a specific road, as a function of some external variables related to the environmental context. When the physical fatigue reaches extreme levels, the cyclist’s ability to deal with an unexpected event or with an emergency condition is particularly limited; further, poor road pavement conditions may increase occurrence probability of critical events. In order to identify the potentially most dangerous road paths, the authors defined a methodology to build a model for cyclist’s fatigue evaluation in terms of Heart Rate class. The proposed procedure is based on the collection of simple data processed by means of Patt…
Un sondeig a la via Augusta al terme municipal de la Salzadella (el Baix Maestrat, Castelló)
2016
This paper presents the results of an excavation in the Via Augusta near the town of la Salzadella (Castellón) located between the mansions of Intibili and Ildum. Although the road was partially destroyed in the excavation of a ditch, a section of its eastern half it was discovered.
Las infraestructuras viarias de Saguntum en época imperial: propaganda, prestigio social y poder municipal
2015
During the government of Augustus the city of Sagunto was transformed in a place symbol of modernity. It is no coincidence that the necessary developing infrastructures were consolidated around it for an optimal development: higher quality viae or better port platforms. Different type of streets emerged following an order of importance depending many times on the wealth of their users. Towards the exit of the city burial monuments were placed honoring relevant citizens. As many other major towns of Hispania, Saguntum is not an exception of great transformations.
Evaluating the effects of man-induced topographic changes in landscape structure on soil erosion by water: a case study in Sicily
2012
STUDIO DI UN AMMORTIZZATORE ELETTROMAGNETICO A RECUPERO DI ENERGIA
2013
Questo lavoro ha come obiettivo principale lo studio teorico e con supporto di software F.E.M. di un dispositivo che consenta recupero energetico da una sospensione automobilistica. In sostituzione allo smorzatore viscoso, che dissipa l’energia cinetica del veicolo a seguito dell’attraversamento di strade sconnesse o ostacoli più marcati, si è usato uno smorzatore elettromagnetico che svolga le funzioni dello smorzatore viscoso consentendo un recupero di energia elettrica. Lo smorzatore elettromagnetico è di tipo a magneti permanenti e il suo funzionamento si basa sul fenomeno dell’induzione elettromagnetica. Il modello matematico descrive il funzionamento dello smorzatore, restituendo i va…
LA VIABILITÀ MINORE NELLA SICILIA CENTRO-MERIDIONALE: IL COMPRENSORIO DI CIGNANA TRA LA VIA SELINUNTINA E LA CATINA-AGRIGENTUM
2021
Obiettivo del contributo è esaminare il sistema stradale di età antica, con un’attenzione particolare rivolta alle vie secondarie, in un ben definito comprensorio della Sicilia meridionale, l’area del Progetto Cignana, pochi km ad est di Agrigento. Si tratta di cogliere non tanto i caratteri della viabilità di lunga percorrenza (la via Selinuntina e la via Catina-Agrigentum) quanto piuttosto le interconnessioni tra i principali assi viari, la rete secondaria (spesso attestata lungo i principali corsi d’acqua), gli insediamenti rurali e gli approdi sulla costa. This paper is aimed to analyze the ancient road system in a selected area of the Southern Sicily, between Agrigento and Licata (Cign…
Road Functional Classification Using Pattern Recognition Techniques
2019
The existing international standards suggest a methodology to assign a specific functional class to a road, by the values of some features, both geometrical and use-related. Sometimes, these characteristics are in contrast with each other and direct the analyst towards conflicting classes for a road or, worse, one or more of these features vary heterogeneously along the road. In these conditions, the analyst assigns the class that, by his capability and experience, he retains the most appropriate, in a very subjective way. On the contrary, the definition of an automatic procedure assuring an objective identification of the most appropriate functional class for each road would be desirable. …
Strade secondarie in Basilicata, Calabria e Sicilia tra esperienze e prospettive
2021
The work examines recent developments in research on ancient roads with particular attention to Sicily.
Restos de caminos antiguos en el término municipal de Viver (Alto Palancia, Castellón)
2018
In this article we present the finding of three ruts areas in the municipality of Viver, in the Alto Palancia region (Castellón). His study provides new archaeological evidences of the works of conditioning of the roads that have ascended the Palancia Valley in different historical periods.