Pavement Marking Warranty Specifications

Pavement Marking Warranty Specifications PDF

Author: Michael J. Markow

Publisher: Transportation Research Board

Published: 2010

Total Pages: 223

ISBN-13: 0309143209

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TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 408: Pavement Marking Warranty Specifications presents information on the use of pavement marking warranties by United States and Canadian transportation agencies, including agency specifications. European experience is also included in the report for comparison purposes. Appendices D and E for NCHRP Synthesis 408 are available online--

Bearing Capacity of Roads, Railways and Airfields

Bearing Capacity of Roads, Railways and Airfields PDF

Author: Andreas Loizos

Publisher: CRC Press

Published: 2017-07-20

Total Pages: 364

ISBN-13: 1351585797

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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.

Performance Contracting for Construction

Performance Contracting for Construction PDF

Author: United States Department of Transportation

Publisher: CreateSpace

Published: 2015-02-27

Total Pages: 110

ISBN-13: 9781508651642

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Much of America's transportation infrastructure is reaching the end of its design life and needs to be reconstructed. At the same time, traffic levels and the resulting congestion levels continue to increase steadily. These two factors combined pose a significant challenge to State Departments of Transportation (DOTs) and the Federal Highway Administration (FHWA). To address this challenge, FHWA has been working with State DOTs and industry to develop a “toolbox” of potential solutions. One tool in this toolbox is performance contracting. Performance contracting is an approach where a private contractor is responsible for achieving a defined set of goals, and where performance goals are specified instead of methods. Using a performance contracting approach will allow owner agencies to define and communicate to construction contractors specifically what they and FHWA want to achieve in their construction projects. The construction contractors on performance contracts should share the risks and rewards as a project partner, and defined performance goals and measurement methodologies will provide a basis for applying incentives and disincentives. However, it must be stressed that for a performance contract to be successful, the contractor must be provided with flexibility on how to perform the work and the performance goals must be under the control/influence of the contractor. FHWA has been working over the past 15 years on evaluating alternative contracting procedures under the Special Experimental Projects No. 14 (SEP-14) program. These procedures, which include performance contracting, incentives/disincentives, and Best Value awards, have resulted in time/cost savings and improved contract management. FHWA anticipates that the use of these procedures will expand greatly in the future as a means of addressing current challenges. The purpose of this Guide is to provide States with processes and materials that they can use to accelerate the development of a performance contract solicitation package for construction contracts.