Search results for " infrastructure"
showing 10 items of 269 documents
A New Coupling Solution for G3-PLC Employment in MV Smart Grids
2019
This paper proposes a new coupling solution for transmitting narrowband multicarrier power line communication (PLC) signals over medium voltage (MV) power lines. The proposed system is based on an innovative PLC coupling principle, patented by the authors, which exploits the capacitive divider embedded in voltage detecting systems (VDS) already installed inside the MV switchboard. Thus, no dedicated couplers have to be installed and no switchboard modifications or energy interruptions are needed. This allows a significant cost reduction of MV PLC implementation. A first prototype of the proposed coupling system was presented in previous papers: it had a 15 kHz bandwidth useful to couple sin…
À la recherche des maillages communaux d'antan. Présentation du projet ANR COMMUNES et de quelques résultats préliminaires
2020
The COMMUNES project aims: 1) to produce the first H-GIS in the world providing annualised boundary data for all French municipalities from the Revolution to the present day. Each spatial unit will include population data and metrics of access to networks of transport; 2) to develop a multimodal model of transport to allow the dynamic analysis of the relationship between economic and demographic changes and accessibility from the end of the 18th century to the present day; 3) to represent and analyse on a very fine scale some key demographic and socio-economic phenomena. Our method for reconstructing historic administrative boundaries combines the study of historical and cartographic source…
VIRTUAL REALITY AND BIM FOR INFRASTRUCTURES
2023
Abstract. Building Information Modelling (BIM) has been widely adopted in the construction industry as a means of improving project efficiency, reducing errors, and facilitating collaboration among stakeholders. However, its potential for the infrastructure sector has not been fully explored. Infrastructure projects, such as roads, bridges, tunnels, and airports, are often complex and require the integration of multiple systems and disciplines. BIM has the potential to provide a digital representation of the infrastructure project, allowing for improved design, construction, and maintenance. This paper aims to explore the potential benefits of BIM in the infrastructure sector, examine the c…
Modelling and Analysis of Nonstationary Vehicle-to-Infrastructure Channels with Time-Variant Angles of Arrival
2018
In mobile radio channel modelling, it is generally assumed that the angles of arrival (AOAs) are independent of time. This assumption does not in general agree with real-world channels in which the AOAs vary with the position of a moving receiver. In this paper, we first present a mathematical model for the time-variant AOAs. This model serves as the basis for the development of two nonstationary multipath fading channels models for vehicle-to-infrastructure communications. The statistical properties of both channel models are analysed with emphasis on the time-dependent autocorrelation function (ACF), time-dependent mean Doppler shift, time-dependent Doppler spread, and the Wigner-Ville sp…
Special Issue “Smart Urban Lighting Systems”
2020
The design and operation of multifunctional infrastructures for public lighting as well as their impact on the urban environment and citizens’ life is today of great interest. The cost of energy for public lighting is often an issue for the budget of municipalities. Furthermore, researchers’ and designers’ attention is increasingly focused on aspects of public lighting not directly valuable through economic factors. Starting from the “quality” of the light environment, looking at citizens’ visual comfort, the light has to be considered as an instrument to improve the urban context and objects therein (including buildings). Indeed, urban degradation (lack of infrastructures, maintenance, ser…
The Road to Higher Prices: Will Improved Road Standards Lead to Higher Housing Prices?
2020
AbstractWe study the impact of improved road standards on housing prices in a region of Southern Norway, where towns are located along the coast, like pearls on a string, with sparsely populated areas between the towns. In this region towns have since long been linked together by a road, but in 2009 a new highway, roughly parallel to the old road, was opened. The new highway runs Eastwards from the main town in the region and reduced one-way commutes to the main town by 10–15 min. We examine how this change in transportation infrastructure has affected housing prices, using difference-in-difference regressions to identify the impact of the new highway. Three smaller towns located East of th…
Orizzontale vs Verticale. Lo spazio pubblico in sezione
2019
Alla richiesta di citare l’edificio recente che più avrebbe influenzato l’architettura americana, il critico architettonico del New Yorker, Paul Goldberger (2011),rispose senza esitazione: «Può sembrare strano, ma penso che la High Line potrà condizionare il prossimo decennio più di qualsiasi edificio convenzionale». Dietro questa risposta c’è molto della condizione contemporanea dell’architettura in cui si esprime un’innovativa visione dello spazio pubblico. Questo progetto - insieme ad ulteriori esempi dimostrativi che costituranno la massa critica del corpo tematico del futuro saggio - sancisce il definitivo ed epocale distacco da un’interpretazione dello spazio pubblico come livello zer…
Déplacements et mutations spatiales à Alger
2019
Algiers port and city’s exceptional history is driven by its remarkable site nestled on a rocky spur. Revealed.Yet this morphology constrained the urban growth of a city that could pretend joigning the ranks of large metropolis. During its history port and city relationship took multiple forms, frequently compatible yet sometimes divergent and even opposed, leading to inversing domination status of both actors. Algiers capital of a 40 million inhabitants state, has always been a laboratory of urban politics since the colonial era to the institutional constructions of independent Algeria, regardless of deficient statistical tools. However, the space in Algiers is confronted to great challeng…
Evaluating Socio-economic Impact of Age-Friendly Environments
2018
According to the World Health Organization (WHO) (2007), physical and social environments are key determinants of whether people can remain healthy, independent and autonomous. Health and well-being are not only determined by our personal characteristics but also by the envi-ronment where we were born and where we live throughout our life (WHO 2015). In fact, promoting age-friendly environments (AFE) is the most effective approach for responding to demographic change because they empower elderly people to age in better health, they pro-mote their social inclusion and active participation, and they help them to live autonomously into old age (Parent 2012). AFE foster health, well-being and t…
Socioekoloģiskās sistēmas pieeja pilsētas zaļās infrastruktūras plānošanā: Hunzes upes koridora piemērs Groningenā
2019
Pilsētu var uzskatīt par daudzšķautņainu organismu, kas pastāv pateicoties gan pilsētas ekosistēmas iekšējiem, gan arī ārējiem resursiem, taču pieaugot iedzīvotāju skaitam, noslogojums uz pilsētā pastāvošajām dabas teritorijām un kultūrmantojumu nemitīgi pieaug. Pilsētvide veidošanā tiek izmantoti stingri noteikti pārvaldības instrumenti, kā arī pilsētvides apsaimniekošanā tiek izmantoti tehniski pārvaldības risinājumi. Līdz ar to pilsētas kļūs par neelastīgām un izteikti cilvēku kontrolētām sistēmām, kuras zaudē spēju pielāgoties neprognozētu ārējo faktoru iedarbībai. Arī pilsētas kultūrvēsturiskās sejas zaudēšana atstāj nospiedumu uz vietas identitātes un labklājības jautājumiem. Tā iemes…