Search results for "Strade"

Ruolo dell'infrastruttura nella sicurezza stradale

2010

Ottimizzazione degli aspetti tecnici ed economici nella gestione della sicurezza in galleria

2010

Integrating vehicle specific power methodology and microsimulation in estimating emissions on urban roundabouts

2021

In this study pollutant emissions were estimated from VSP modal emission rates and the distribution of time spent in each VSP mode obtained from the speed profiles both gathered in the field and simulated in AIMSUN at a sample of urban roundabouts. The versatility of the micro-simulation model for a calibration aimed at improving accuracy of emissions estimates was tested in order to ensure that second-by-second trajectories experienced in the field by a test vehicle through the sampled roundabouts properly reflected the simulated speed profiles. The first results which the thesis will refer, confirmed the feasibility of the smart approach that integrates the use of field-observed and simul…

A microsimulation calibration methodology based on speed-density relationships for freeways

2014

This paper describes the calibration methodology based on speed-density relationships in the microsimulation calibration process, stated that they represent the traffic flow phenomenon in a wide range of operational conditions and well summarize all the information that may be collected on field (or following a run of the microsimulation model) on two of the three key variables of traffic flow. The matching of speed-density relationships from field and simulation was evaluated using statistical analysis as technique of pattern recognition. A test freeway segment under uncongested traffic conditions was selected as case study; based on traffic data observed at A22 Brenner Freeway, Italy, sta…

TRATTAMENTO CON CALCE DEI TERRENI ARGILLOSI: STATO ATTUALE DELLA TECNICA

2011

STRADE DI SICILIA. SCATTI DA GOOGLE STREET VIEW RIVISITATI/

2013

STRADE DI SICILIA. SCATTI DA GOOGLE STREET VIEW RIVISITATI/

Preliminary Evaluation of Plasmix Compound from Plastics Packaging Waste for Reuse in Bituminous Pavements

2021

Finding an appropriate technical solution for reusing waste plastics is crucial for creating a circular plastic economy. Although mechanical recycling is the best option for recycling post-consumer plastics, some heterogeneous mixed plastics cannot be recycled to produce secondary material due to their very low properties. In this case, alternative routes should be considered in order to limit their disposal as much as possible. Therefore, in order to solve the environmental problems in the landfills of plastic waste recycling, and to improve the mechanical performance of bitumen for road pavement, the reuse of these post-consumer plastic wastes are preliminarily evaluated for the modificat…

Quality-control procedure for dry-process rubberised asphalt mastics

2019

Crumb Rubber (CR) can be incorporated into asphalt mixes via the dry process by directly adding CR into the mixer together with other asphalt mixture’s components, or with the wet process where the CR is used as a bitumen modifier. While the wet process allows an accurate monitoring of the interaction between CR and bitumen, the lack of control represents a main issue in the dry process. In fact, in the latter the CR particles keep swelling during hauling and possibly also after paving operations, often causing workability issues and premature failures. This study wants to provide a methodology that could help quality control procedures of bitumen/filler/rubber systems during mixing, haulin…

Latviešu autoru 21.gadsimta teātra tekstu funkcionalitāte

2019

Maģistra darbs “Latviešu autoru 21. gadsimta teātra tekstu funkcionalitāte” veltīts latviešu autoru 21. gadsimta teātra tekstu analīzei, pievēršot uzmanību tekstradei un teksta funkcionalitātei. Mainoties teātra tekstu un iestudējumu savstarpējām attiecībām un tekstam zaudējot centrālo lomu iestudējumos, mainījušies arī teātra tekstu radīšanas principi un teksta funkcionalitāte iestudējumā, un tas sevišķi spilgti novērojams postdramatiskā teātra kontekstā. Latvijas teātrī par būtiski pagriezienu kļuva Alvja Hermaņa 2004. gada izrāde “Latviešu stāsti” (Jaunais Rīgas teātris), kas aktualizēja diskursu par teātra tekstiem. Šajā darbā no tekstrades un teksta funkcionalitātes viedokļa analizētas…

Safety evaluation of turbo roundabout with and without internal traffic separations considering autonomous vehicles operation

The paper presents a microsimulation approach for assessing the safety performance of turbo-roundabouts where Cooperative Autonomous Vehicles “CAVs” have been mixed with conventional vehicles “CVs”. Based on the analysis of vehicle trajectories from VISSIM and subsequent analysis of traffic conflicts through the Surrogate Safety Assessment Model (SSAM), the research aims to evaluate the safety benefits of turbo-roundabouts where the lanes are physically separated by raised curbs compared to roundabouts without curbs. The paper shall also lead to describe the methodological path followed to build VISSIM models of turboroundabout with and without raised curbs, to calibrate the simulation mode…