Search results for " road"

ANALYSIS OF DIFFERENT VISUAL STRATEGIES OF 'ISOLATED VEHICLE' AND 'DISTURBED VEHICLE'

2017

This paper analyses the driver’ visual behaviour in the different conditions of ‘isolated vehicle’ and ‘disturbed vehicle’. If the meaning of the former is clear, the latter condition considers the influence on the driving behaviour of various objects that could be encountered along the road. These can be classified in static (signage, stationary vehicles at the roadside, etc.) and dynamic objects (cars, motorcycles, bicycles). The aim of this paper is to propose a proper analysis regarding the driver’s visual behaviour. In particular, the authors examined the quality of the visually informa-tion acquired from the entire road environment, useful for detecting any critical safety condition. …

An overview of safety effects on pedestrians at modern roundabouts

2011

Pedestrians are important users of the transportation system, but most guidelines have given them little importance in the geometric design of roads and intersections. In these cases it can be difficult for vehicles and pedestrians to share the road safely, particularly at intersections where vehicle-pedestrian conflicts (and the risk of vehicle–pedestrian crashes) can be a frequently recurring situation even with low pedestrian volume. In a sustainable safety vision road system planning and design must include engineering choices that help to improve the sharing of road space between vehicles and pedestrians, as well as for other vulnerable users. It is known that modern roundabouts are sa…

Forest road planning to improve tourism accessibility: a comparison of different methods applied in a real case study

2022

Forest road planning with the available tools, e.g. PEGGER and GIS, still requires a lot of time of an expert, and the designed roads are not guaranteed to be efficient in terms of the cost or suitability of the road. In this article, we propose a novel Genetic Algorithm (GA) based method for forest road planning. To do so, each road is represented as a sequence of fixed and variable (control) points. A novel objective (fitness) function is defined based on the length, gradient, and suitability of the roads (individuals). The proposed algorithm is applied to the Arasbaran forest area and the resulted roads are compared with PEGGER-designed roads regarding length, Bachmund index, accessibili…

Project Management in the Port Development Project in Latvia

2016

Paper analyse case study of performance and compliance audit in the port development project in Latvia. Author has participated in the audit process evaluating project management application practical approach in the project implemented by the Riga Freeport Authority and co-funded by the Cohesion Fund “Development of Infrastructure on Krievu Island for the Transfer of Port Activities from the City Centre”. Despite the mass media reports that the Riga Freeport Authority has successfully completed the project, only the construction phase of the project has been completed. During the following two years the stevedore activity must be transferred to the newly built port infrastructure on Krievu…

THE DIAGNOSIS OF ROAD SURFACE DISTRESSES THROUGH IMAGE-BASED MODELING TECHNIQUES. EXPERIMENTAL SURVEY ON LABORATORY-RUTTED SAMPLES

2015

In the past few years, there has been a drastic increase in the use of image-based modeling (IBM) techniques to create high quality, reality-based 3D models. The low costs of these techniques, as well as their attractive visual quality, have led many researchers and professionals to invest their energy and resources in several tests. IBM is rarely used in the field of road surface distresses as diagnosis is usually performed using other techniques and devices. Road safety statistics reveal that about a half of the total number of accidents occur mainly due to the deterioration of the pavement. The goal of effective road network management is often incompatible with economic resources design…

A multi-scale approach to assess the impacts of roads on biodiversity and geomorphology.

2002

Valuing the effects of urban road-network projects: a methodological proposal

2006

This paper proposes a methodology for the valuation of the urban environment. It tries to answer questions and problems that derive from new road installations, or functional requalifications in existing road infrastructures, in accordance with specific practices already well-known as Urban Impact Assessment (UIA). More generally, the objective of the urban impact assessment consists of valuing the possibilities to localize urban installations, also considering both their economic and social effects, as well as identifying potential dangers to the environment, intended in a general sense. This kind of valuation distinguishes from the traditional environmental impact valuation (e.g., applied…

Molte Palermo. Temi

2019

Nel tema delle incompiute idee di città possibili si riconoscerà il paradigma connotativo dello stesso divenire di Palermo, lungo un percorso millenario di processi di trasformazione nessuno dei quali portato a compimento, in virtù di quel valore distintivo di exemplum che non necessita di ulteriori e conclusive dimostrazioni. Il corso della storia, del resto, ha imposto a Palermo il ciclico riproporsi di destini interrotti. Tale si rilevò l’invenzione della città capitale, quella della “quadratura geometrica e della croce di strade” sovrimpressa a quella archetipica e fondativa della Pan-ormos scambiatrice. E l’incompiutezza sarà il tratto distintivo della città dei rettifili stradali otto…

ARCHITETTURA, CUSTODE DELLA NATURA : il progetto di suolo nella trasformazione delle autostrade urbane, 1962-2018

2023

Un inarrestabile cambiamento nel paradigma con cui l’uomo concepisce la propria specie rispetto ai suoi modi di costruire è alla base dell’attrattiva per l’incorporazione del vegetale nell’Architettura. Lo statuto euristico di maggiore capacità di tale nuovo corso è la sostituzione progressiva dell’Ambiente alla Natura fra i motori della Composizione. Su questo sfondo, l’articolo indaga l’ibridazione del vegetale e del costruito nella trasformazione contemporanea delle grandi autostrade urbane, attraverso un approccio diacronico e comparativo, in riferimento a una ricerca internazionale di cui estende l’ipotesi principale. A tal fine, ricostruisce il telaio ermeneutico di riferimento discut…

L'aménagement d'un vallon : deux ouvrages d'art de la VIIIe légion à Mirebeau-sur-Bèze, La Combotte (Côte-d'Or)

2016

Eine Präventivgrabung des Inrap 80 m nordwestlich vom Lager der Legio VIII Augusta in Mirebeau-sur-Bèze bot Gelegenheit zwei Bauwerke aus der Zeit der Stationierung dieser Legion zu untersuchen : eine zu einem Aquädukt gehörige Kanalbrücke und eine Straße mit Stützmauern und einem Abwasserkanal. Zwar wurden einige Arbeitsniveaus erkannt, doch überwiegend handelt es sich um Schuttschichten, die beim Bau, der Zerstörung und Aufgabe der Bauwerke entstanden waren. Eine Produktion von Kalk, von der nur Abfälle zeugen, steht im Zusammenhang mit der Zerstörung des Aquäduk