نتایج جستجو برای: road roughness

تعداد نتایج: 92646  

2011
Roberto Medina Jaime Gómez-García-Bermejo

Pavement maintenance requires knowing the state of the road surface. Human inspection is the most common method for evaluating this state. Recently, the automated visual inspection has been addressed, but some important questions remain open concerning the variable ambient lighting, shadows, device synchronisation and the large amount of data. In the present paper, an automated visual inspectio...

2005
M. Kardous

Wind erosion in agricultural soils is dependent, in part, on the aerodynamic roughness length (z0) produced by tillage ridges. Although previous studies have related z0 to ridge characteristics (ridge height (RH) and spacing (RS)), these relationships have not been tested for tillage ridges observed in the North African agricultural fields. In these regions, due to climate and soil conditions, ...

Journal: :IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 2023

Airborne Synthetic Aperture Radar (SAR) has the potential to monitor remotely road traffic infrastructure on a large scale. Of particular interest is surface roughness, which an important safety parameter. For this task, novel algorithms need be developed. Machine learning approaches, such as Artificial Neural Networks (ANN) and Random Forest Regression, can perform non-linear regression, achie...

Journal: :Sustainability 2022

Autonomous vehicles (AVs) are becoming increasingly popular, and this can potentially affect road performance. Road performance also influences driving comfort safety for AVs. In study, the influence of changes in traffic volume wheel track distribution caused by AVs on rutting distress asphalt pavement was investigated through finite element simulations. A vehicle-mounted three-dimensional las...

2014
Prakash Kumar

The main role of the present work is to conduct pavement performance evaluation of Cell Filled Concrete road constructed in Sidlaghatta taluk of Chickaballapura District in Karnataka. The study area selected is from Anur Hunasenahalli to T-07 (2.16 km) in Sidlaghatta Taluk. The above selected road is categorized under Village Roads (VR) and is constructed under the Technology Demonstration Proj...

Journal: :E3S web of conferences 2023

This scientific article presents an analysis of the norms roughness road pavement in foreign countries. Based on results obtained from experimental research work measuring international index (IRI) pavements many years various highways by studying their experience, Republic Uzbekistan are recommended.

Journal: :Tribology International 2023

Predicting tyre–road friction requires various inputs that are known with differing levels of confidence. This paper studies the prediction and associated experimental confirmation rubber on real roads at high sliding speeds. Friction predictions obtained from Persson’s flash temperature model: topography road surface is measured using an optical profilometer, while rubber’s viscoelastic modulu...

2016
Imran Bashir Shahram Taherzadeh

Abstract: Growing demand on transportation, road and railwaynetworks has increased the risk of annoyance from these sources and the need to optimise noise mitigation. The potential traffic noise reduction arising from use of acoustically-soft surfaces and artificial roughness (0.3 m high or less) is explored through laboratory experiments, outdoor measurements at short and medium ranges and pre...

2009
M. M. M. Salem Ayman A. Aly

An active suspension system has been proposed to improve the ride comfort. A quarter-car 2 degree-of-freedom (DOF) system is designed and constructed on the basis of the concept of a four-wheel independent suspension to simulate the actions of an active vehicle suspension system. The purpose of a suspension system is to support the vehicle body and increase ride comfort. The aim of the work des...

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