Introduction to Unmanned Aircraft Systems, Second Edition

Introduction to Unmanned Aircraft Systems, Second Edition
Author: Douglas M. Marshall
Publisher: CRC Press
Total Pages: 1944
Release: 2015-10-26
Genre: Political Science
ISBN: 113802693X

The proliferation of technological capability, miniaturization, and demand for aerial intelligence is pushing unmanned aerial systems (UAS) into the realm of a multi-billion dollar industry. This book surveys the UAS landscape from history to future applications. It discusses commercial applications, integration into the national airspace system (NAS), System function, operational procedures, safety concerns, and a host of other relevant topics. The book is dynamic and well-illustrated with separate sections for terminology and web- based resources for further information.

Bearing Capacity of Roads, Railways and Airfields

Bearing Capacity of Roads, Railways and Airfields
Author: Andreas Loizos
Publisher: CRC Press
Total Pages: 3209
Release: 2017-07-20
Genre: Technology & Engineering
ISBN: 1351585789

Bearing Capacity of Roads, Railways and Airfields includes the contributions to the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields (BCRRA 2017, 28-30 June 2017, Athens, Greece). The papers cover aspects related to materials, laboratory testing, design, construction, maintenance and management systems of transport infrastructure, and focus on roads, railways and airfields. Additional aspects that concern new materials and characterization, alternative rehabilitation techniques, technological advances as well as pavement and railway track substructure sustainability are included. The contributions discuss new concepts and innovative solutions, and are concentrated but not limited on the following topics: · Unbound aggregate materials and soil properties · Bound materials characteritics, mechanical properties and testing · Effect of traffic loading · In-situ measurements techniques and monitoring · Structural evaluation · Pavement serviceability condition · Rehabilitation and maintenance issues · Geophysical assessment · Stabilization and reinforcement · Performance modeling · Environmental challenges · Life cycle assessment and sustainability Bearing Capacity of Roads, Railways and Airfields is essential reading for academics and professionals involved or interested in transport infrastructure systems, in particular roads, railways and airfields.

Development of Performance Related Specifications for Asphalt Pavements in the State of Arizona

Development of Performance Related Specifications for Asphalt Pavements in the State of Arizona
Author: Matthew W. Witczak
Publisher:
Total Pages: 78
Release: 2008
Genre: Pavements, Asphalt concrete
ISBN:

This report presents an Executive Summary of a comprehensive study conducted by ASU regarding a series of 11 separate projects relating to the implementation of the ME-PDG (developed under NCHRP 1-37A and NCHRP 1-40D)for the state of Arizona. The individual study project reports deal with the characterization of a variety of AC Binder types used by ADOT (Project 2); characterization results of E* Master Curve results for typical AC mixtures used in Arizona (Project 3); the characterization of these typical ac Mixtures for Thermal Fracture (Project 4), Permanent Deformation (Project 5), and Load associated Fatigue (Project 6). In addition, recommendations are made in Project 7 regarding the implementation of the SPT for AC Mixtures. Projects 8 & 9 focus on unbound bases/subbases and subgrades. Project 8 describes the results on non-linear Mr response on as variety of typical unbound bases and subgrades. Project 9 deals with the development of an unbound material permanent deformation database and development of a more universal permanent strain model. In the Project 10 study report, the state of Arizona has been subdivided, on the basis of relatively unique climatic regions based upon regional geomorphology. A total of 10 climatice regions in Arizona have been developed and a listing of current EICM weather stations found in the ME-PDG are identified by climatic region. Finally, Project 11 is a very comprehensive report study of the existing ADOT traffic files for eventual inclusion with the ME-PDG. A computerized (spreadsheet) traffic database of the entire ADOT highway network was conducted This database incorporates every mile of the Arizona highway network(6 Interstates; 13 U.S. Highways and 86 state highways). Four significant traffic factors are included in the database: Average Annual Daily Traffic(AADT), Annual Growth Rate (rg), Percent Trucks (pt), and Vehicle Classification Percentage (VCP). Relatively homogeneous traffic units were selected based on existing ADOT HPMS and VCP stations.

Bituminous Mixtures and Pavements VIII

Bituminous Mixtures and Pavements VIII
Author: A.F. Nikolaides
Publisher: CRC Press
Total Pages: 999
Release: 2024-06-21
Genre: Technology & Engineering
ISBN: 1040147089

Bituminous Mixtures and Pavements VIII contains 114 papers as presented at the 8th International Conference ‘Bituminous Mixtures and Pavements’ (8th ICONFBMP, 12-14 June 2024, Thessaloniki, Greece). The contributions reflect the research and practical experience of academics and practicing engineers from thirty-four (34) different countries, and cover a wide range of topics: Session I: Bitumen, Modified binders, Aggregates, and Subgrade Session II: Bituminous mixtures (Design, Construction, Testing, Performance) Session III: Pavements (Design, Construction, Maintenance, Sustainability, Energy and Environmental consideration) Session IV: Pavement management and Geosynthetics Session V: Pavement recycling Session VI: Pavement surface characteristics, Pavement performance monitoring, Safety Session VII: Biomaterials in pavement engineering Session VIII: Prediction models of pavement performance Bituminous Mixtures and Pavements VIII covers recent advances in highway materials technology and pavement engineering, and will be of interest to scientists and professionals involved or interested in these areas. The ICONFBMP-conferences have been organized every four years since 1992. This 8th conference was jointly organized by: Laboratory of Highway Engineering, Aristotle University of Thessaloniki, Greece; Built Environment Research Institute (BERI), University of Ulster, UK; University of Texas San Antonio (UTSA), USA; Laboratory for Advanced Construction Technology (LACT), Technological Institute of Iowa, USA; Technological University of Delft (TUDelft), The Netherlands, and University of Antwerp, (UA), Belgium.

Nondestructive Testing of Pavements and Backcalculation of Moduli

Nondestructive Testing of Pavements and Backcalculation of Moduli
Author: Shiraz D. Tayabji
Publisher: ASTM International
Total Pages: 534
Release: 2000
Genre: Materials
ISBN: 0803128584

As with the previous two symposia, the 32 papers from the June/July, 1999, Seattle symposium present advances in the nondestructive testing of pavements using conventional falling weight deflectometer techniques and other promising techniques such as ground penetrating radar, rolling weight deflecto

Concrete Pavement Design, Construction, and Performance, Second Edition

Concrete Pavement Design, Construction, and Performance, Second Edition
Author: Norbert J. Delatte
Publisher: CRC Press
Total Pages: 450
Release: 2014-05-22
Genre: Technology & Engineering
ISBN: 1466575107

This second edition of Concrete Pavement Design, Construction, and Performance provides a solid foundation for pavement engineers seeking relevant and applicable design and construction instruction. It relies on general principles instead of specific ones, and incorporates illustrative case studies and prime design examples to highlight the material. It presents a thorough understanding of materials selection, mixture proportioning, design and detailing, drainage, construction techniques, and pavement performance. It also offers insight into the theoretical framework underlying commonly used design procedures as well as the limits of the applicability of the procedures. All chapters have been updated to reflect recent developments, including some alternative and emerging design technologies that improve sustainability. What’s New in the Second Edition: The second edition of this book contains a new chapter on sustainability, and coverage of mechanistic-empirical design and pervious concrete pavements. RCC pavements are now given a new chapter. The text also expands the industrial pavement design chapter. Outlines alternatives for concrete pavement solutions Identifies desired performance and behavior parameters Establishes appropriate materials and desired concrete proportions Presents steps for translating the design into a durable facility The book highlights significant innovations such as one is two-lift concrete pavements, precast concrete pavement systems, RCC pavement, interlocking concrete pavers, thin concrete pavement design, and pervious concrete. This text also addresses pavement management, maintenance, rehabilitation, and overlays.

Development and Validation of Performance Prediction Models and Specifications for Asphalt Binders and Paving Mixes

Development and Validation of Performance Prediction Models and Specifications for Asphalt Binders and Paving Mixes
Author: Robert L. Lytton
Publisher: Strategic Highway Research Program (Shrp)
Total Pages: 500
Release: 1993
Genre: Asphalt concrete
ISBN: 9780309056175

A result of the Strategic Highway Research Program's asphalt research is the development of performance-based specifications for asphalt binders and mixtures to control 3 distress modes: rutting; fatigue cracking; and thermal cracking. The SHRP A-005 project developed detailed pavement performance models to support these binder and mixture specifications and performance-based mixture designs. This report documents the findings of this extensive research effort and provides supporting data for the performance-based specifications and mixture design procedure called SUPERPAVE. The A-005 contract developed and used a sophisticated, mechanistic-based pavement performance model to define the relationships between asphalt binder and mixture properties and pavement distress. A comprehensive pavement performance model was developed that predicts the amount of fatigue cracking, thermal cracking and rutting in asphalt concrete pavements with time, using results from the accelerated laboratory tests. The pavement performance models for each distress were also used to confirm the relevant binder and mixture properties established by other SHRP contractors. The model has 3 parts: a mixture evaluation model; a pavement response model; and a pavement distress model.

AASHTO Guide for Design of Pavement Structures, 1993

AASHTO Guide for Design of Pavement Structures, 1993
Author: American Association of State Highway and Transportation Officials
Publisher: AASHTO
Total Pages: 622
Release: 1993
Genre: Pavements
ISBN: 1560510552

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.