Results 211 to 220 of about 7,446 (255)

International Roughness Index prediction model for flexible pavements

International Journal of Pavement Engineering, 2018
International Roughness Index (IRI) is a pavement performance indicator which reflects not only the pavement condition but also the ride quality and comfort level of road users.
Nader Abdelaziz, Ragaa T. Abd El-Hakim, Sherif M. El-Badawy, Hafez A. Afify   +3 more
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Estimate non-Gaussian road roughness from international roughness index

Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
Gaussian model is commonly used to characterize road roughness, while field measured data is usually non-Gaussian. A new method based on the amplitude modulation and International Roughness Index is proposed in this paper to estimate non-Gaussian road roughness. A modified Gamma distribution is proposed to describe the International Roughness Index and
Fei Xu, Feifei Ma, Kjell Ahlin
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International Roughness Index specifications around the world

Road Materials and Pavement Design, 2016
The International Roughness Index (IRI) is an indicator used worldwide for the characterisation of longitudinal road roughness. This study summarised IRI limit values for new, reconstructed, or rehabilitated roads; for in-service (existing) roads; and road classification schemes used around the world. An overview of practices in 35 US states and 29 non-
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The Predicted Model of International Roughness Index for Drainage Asphalt Pavement

2008
Roughness is a very important performance indicator in pavement maintenance management systems. The international rough index (IRI) of indicators was used as the core of roughness measuring of degree gradually in recent years domestically, but to predict a smooth degree of indicators the method is set up differently as there is a different prediction ...
Chien-Ta Chen, Ching-Tsung Hung, Chien-Cheng Chou, Ziping Chiang, Jyh-Dong Lin   +4 more
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IRI (International Roughness Index): An Indicator Of Vehicle Response

Materials Today: Proceedings, 2018
Abstract Public roads are the principle source of excitation to ground vehicles. Objective roughness/severity classification of the public roads is essential to predict vehicle response/fatigue damage at an early stage of vehicle development program.
Prashant R. Pawar, Arun Tom Mathew, M.R. Saraf   +2 more
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Development of a crowdsourcing-based system for computing the international roughness index

International Journal of Pavement Engineering, 2020
Pavement roughness is one of the essential parameters of pavement quality affecting ride quality, driving safety, and fuel consumption.
Zahra Mirtabar, Amir Golroo, Ahmadreza Mahmoudzadeh, Farshad Barazandeh   +3 more
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ANALISIS KERUSAKAN JALAN MENGGUNAKAN METODE INTERNATIONAL ROUGHNESS INDEX

Jurnal ARTESIS, 2023
Jalan Tol Gempol – Pasuruan yang terhitung 6 tahun lamanya beroperasi yang dimulai pada maret 2017 ini memiliki 2 jalur/arah, memiliki bentang panjang dengan jumlah keseluruhan sepanjang 34,50 kilometer, dengan kilometer awal pada KM 776 + 000, dan kilometer akhir pada KM 810 + 000.
Syarifah Rafizma Saadah, Imam Hagni Puspito   +1 more
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Smooth Enough?: Estimated Roughness on Roads with Low International Roughness Index Values

Transportation Research Record: Journal of the Transportation Research Board, 2003
The reported investigation is one part of a project concerning methods for measurement of the longitudinal roughness of roads and the necessary accuracy. In this study the main focus was on the subjective experience of roughness on roads with low international roughness index (IRI) values, that is, fairly good roads. With the available data it was also
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Preliminary assessment of ALOS/PALSAR images for the international roughness index estimation

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015
This article evaluates the relationship between SAR backscattering coefficients and the International Roughness Index (IRI). We used full-polarized ALOS/PALSAR amplitude images and field data gathered using laser sensors on-board of vehicles. We also evaluated LANDSAT-5/TM images for comparison.
Flavio Fortes Camargo, Edson Eyji Sano, Gustavo Macedo de Mello Baptista, Raphael de Oliveira Borges   +3 more
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Factors Contributing to Differences between Profiler and the International Roughness Index

Transportation Research Record: Journal of the Transportation Research Board, 2006
One of the data elements included in a pavement management system is the roughness of each highway segment. State highway agencies use inertial profilers to collect profile data of the pavements and then use these data to compute the International Roughness Index (IRI) of each highway segment.
Rohan W. Perera, Starr D. Kohn, Larry J. Wiser   +2 more
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