Search results for "roads"
showing 10 items of 62 documents
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.
Col : A Data Collection Protocol for Vanet
2012
International audience; In this paper, we present a protocol to collect data within a vehicular ad hoc network (VANET). In spite of the intrinsic dynamic of such network, our protocol simultaneously offers three relevant properties: (1) It allows any vehicle to collect data beyond its direct neighborhood (i.e., vehicles within direct communication range) using vehicle-to-vehicle communications only (i.e., the infrastructure is not required); (2) It tolerates possible network partitions; (3) It works on demand and stops when the data collection is achieved. To the best of our knowledge, this is the first collect protocol having these three characteristics. All that is chiefly obtained thanks…
Kierunki rozwoju sieci autostrad i dróg ekspresowych w Polsce
2018
W artykule przedstawiono kierunki rozwoju sieci autostrad i dróg ekspresowych w Polsce w latach 1990-2018. Sieć dróg szybkiego ruchu w kraju jest intensywnie rozbudowywana. Płatne dla pojazdów samochodowych autostrady są uzupełniane siecią bezpłatnych dróg ekspresowych, głównie dwujezdniowych. Program budowy dróg ekspresowych na lata 2014-2023 jest konsekwentnie realizowany. Zbudowano główne autostrady kraju A-1, A-2 i A-4. W trakcie rozbudowy są drogi ekspresowe S-3, S-5, S-6, S-7, S-8, S17, S-19 i S-61. Aktualne inwestycje drogowe koncentrują się na budowie brakujących odcinków dróg ekspresowych i obwodnic miast. Opracowanie podejmuje również próbę racjonalizacji kolejności podejmowanych …
Effectiveness of a New Drainage System for Decreasing Erosion in Road Hillslopes
2021
© The Author(s) 2021.
Optimizing artificial neural networks for the evaluation of asphalt pavement structural performance
2019
Artificial Neural Networks represent useful tools for several engineering issues. Although they were adopted in several pavement-engineering problems for performance evaluation, their application on pavement structural performance evaluation appears to be remarkable. It is conceivable that defining a proper Artificial Neural Network for estimating structural performance in asphalt pavements from measurements performed through quick and economic surveys produces significant savings for road agencies and improves maintenance planning. However, the architecture of such an Artificial Neural Network must be optimised, to improve the final accuracy and provide a reliable technique for enriching d…
The subway tunneling technique for distal shunt catheter insertion.
2019
Dear Editor,We read with interest the article by Osman et al. titled ‘Trocar assisted distal shunt tube insertion with intra-operative X-Ray confirmation’. The authors purpose their technique to pl...
Nasium : Sondage archéologique à Saint-Amand-sur-Ornain " Le Cul de Breuil "
2010
Ce rapport de fouille présente les résultats d'un sondage archéologique mené au cœur du site de Nasium, à l'interface entre l'oppidum celtique et l'agglomération antique. Le système de voirie qui relie ces deux , dans le prolongement d'une des portes principales de l'oppidum, a été ainsi révélé, associé à des structures à caractère funéraire ou rituel. La chronologie de ces vestiges, centrée sur les dernières décennies du Ier siècle avant J.-C., correspond à la période durant laquelle l'oppidum est abandonné au profit de la plaine alluviale de l'Ornain. Par ailleurs, la découverte de plusieurs centaines de clous de chaussure militaires et de céramiques d'origine italique pose la question du…
The influence of coconut fibre and salts composite used for eliminating slipperiness and on roads on soils = Wpływ kompozytu mieszanki włókien kokoso…
2015
The subject of the study is analyzing the impact of coconut fibre and salt mixture used for eliminating slipperiness on roads on roadside soil. The tests were done on the soil samples taken from the fixed areas twice: in the autumn before applying the composite and in the following spring. Laboratory tests indicated decrease of conduciveness in soil after using the composite in wintertime. This can cause decreasing saltiness of roadside soil. In contrast to commonly used methods of eliminating slipperiness on roads with salts only applying the composite could diminish the negative effects of roadside soil saltiness.
Experimental Investigation on Stiffness and Strength of Single-Lap Z-Pinned Joints in a Laminated CFRP Stress-Ribbon Strip
2016
Carbon fiber-reinforced polymer (carbon-polymer) is an advanced lightweight composite material with high strength and excellent resistance to corrosion and fatigue. Over the past decades, application of fiber-reinforced polymers has been spread from the aerospace to other branches of industry such as automobile and civil engineering. Unidirectional carbon-polymers have a high potential for replacing steel in tensile members. Recently, the first carbonpolymer stress-ribbon bridge has been constructed in Germany. The non-laminated strip-loop carbon-polymer thin strips were used as the load bearing components in this bridge. In comparison with the laminated components, the applied cables are c…
Zmiany w układzie sieci transportowych regionów administracyjnych Śląska
2021
Celem opracowania jest charakterystyka zmian zachodzących w ostatnich latach na sieciach transportowych Śląska. Przedmiotem zainteresowania są podstawowe gałęzie transportu, a zwłaszcza sieci transportu drogowego i kolejowego. Ponadto artykuł ukazuje stopień zainwestowania infrastruktury transportowej, jej braki i priorytety inwestycyjne najbliższych lat. Opracowanie, pod względem metodycznym, ma charakter przeglądowego studium opisowo-faktograficznego, wykorzystującego aktualne dane statystyczne i miejscami nawiązującego do rozwoju historycznego analizowanych sieci transportowych Śląska.