Download or read book Field Verification of Smoothness Requirements for Weigh in Motion Approaches written by Dar-Hao Chen and published by . This book was released on 2009 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The smoothness of the pavement surface approaching a Weigh-in-Motion (WIM) scale directly affects the device's ability to accurately estimate static loads from measured dynamic forces. Lack of smoothness creates difficulties in reducing the weighing error to an acceptable level. Efforts were made in this study to determine appropriate values of profile length and roughness of the WIM approach. Roughness data for 19 WIM sites across Texas were collected, and the corresponding calibration records from those WIM sites were employed to verify the smoothness guidelines proposed by AASHTO MP 14 and ASTM E1318. Since there are multiple lanes at each WIM site, a total number of 70 profiles were collected. Based on the calibration records from the WIM sites and field roughness measurements, it was found that the upper threshold value of Long Range Index (LRI) of AASHTO method MP 14 should be adjusted in order to screen out the locations that yield unacceptable weighing error. The lower threshold value was found to be unnecessary, because more than 90 % of WIM sites yielded acceptable weighing error even when they exceeded the lower threshold value. The LRI is preferable to the Short Range Index (SRI) as it matched well with the field WIM calibration results. Based on the 70 profiles used to determine appropriate lengths, a profile length of 25.8 m preceding the WIM is found to be sufficient. That is the length required to obtain a valid LRI, according to AASHTO MP 14. The ASTM E1318 requirement of 60 m is too conservative. It is concluded that an LRI of 1.74 m/km for the 25.8 m leading up to the WIM is the only critical factor in AASHTO MP 14 and is the limit recommended.

Download or read book Recent Developments in Pavement Engineering written by Sherif Badawy and published by Springer Nature. This book was released on 2019-11-01 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together scientific experts in different areas that contribute to the design, analysis, and performance of sustainable pavements. This book also contributes to transportation engineering challenges and solutions, evaluate the state of the art, identify the shortcomings and opportunities for research, and promote the interaction with the industry. In particular, scientific topics that are addressed in this book include the use of different waste and recycled materials to improve pavement performance, pavement maintenance and rehabilitation, urban heat island due to transportation infrastructure and its mitigation techniques, machine learning applications in the prediction of pavement distresses, and analysis of pavement overlay.

Download or read book Smoothness Criteria for WIM Scale Approaches written by Steven M. Karamihas and published by . This book was released on 2002 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Standard Specifications for Transportation Materials and Methods of Sampling and Testing written by AASHTO. and published by AASHTO. This book was released on 2011 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Speed Weigh in motion System Calibration Practices written by A. T. Papagiannakis and published by Transportation Research Board. This book was released on 2008 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Calibration of Weigh in motion Systems written by J. M. Zuieback and published by . This book was released on 1988 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis of Highway Practice written by National Cooperative Highway Research Program and published by Transportation Research Board. This book was released on 1984 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings written by and published by IEEE Computer Society. This book was released on 1989 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Standard Specifications for Transportation Materials and Methods of Sampling and Testing written by American Association of State Highway and Transportation Officials and published by . This book was released on 2001 with total page 1822 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Conference on Computer Vision written by and published by . This book was released on 1988 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book AASHTO Guide for Design of Pavement Structures 1993 written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 1993 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design related project level pavement management - Economic evaluation of alternative pavement design strategies - Reliability / - Pavement design procedures for new construction or reconstruction : Design requirements - Highway pavement structural design - Low-volume road design / - Pavement design procedures for rehabilitation of existing pavements : Rehabilitation concepts - Guides for field data collection - Rehabilitation methods other than overlay - Rehabilitation methods with overlays / - Mechanistic-empirical design procedures.

Download or read book Traffic Monitoring Guide written by United States. Federal Highway Administration. Office of Highway Information Management and published by . This book was released on 1992 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book American Standard Performance Requirements for Textile Fabrics written by American Standards Association and published by . This book was released on 1960 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Standard Methods for the Examination of Water and Wastewater written by American Public Health Association and published by . This book was released on 1981 with total page 1254 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Public Roads written by and published by . This book was released on 1988 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Second European Conference on Weigh in motion of Road Vehicles Lisbon 14th 16th September 1998 written by European Commission and published by Office for Official Publications of the European Communities. This book was released on 1998 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1965 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: