TRB's National Cooperative Highway Research Program (NCHRP) Report 694: Evaluation and Performance Measurement of Congestion Pricing Projects is designed to help transportation agencies select or develop measures to evaluate congestion-pricing projects; collect the necessary data; track performance; and communicate the results to decision makers, users, and the general public.
A companion document to NCHRP Report 694 was published as NCHRP Web-Only Document 174: Performance Measurement and Evaluation of Tolling
TRB's National Cooperative Highway Research Program (NCHRP) Research Results Digest 359: Models to Support State-Owned Park and Ride Lots and Intermodal Facilities addresses the needs and issues associated with state park and ride lots and intermodal commuter facilities and programs. The report identifies deficiencies, best practices, and promising innovations.
TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 423: Long-Term Performance of Polymer Concrete for Bridge Decks addresses a number of topics related to thin polymer overlays (TPOs).
Those topics include previous research, specifications, and procedures on TPOs; performance of TPOs based on field applications; the primary factors that influence TPO performance; current construction guidelines for TPOs related to surface preparation, mixing and placement, consolidation, finishing, and curing; repair procedures; factors that influence the performance of overlays,
TRB's National Cooperative Highway Research Program (NCHRP) Report 707: Guidelines on the Use of Auxiliary Through Lanes at Signalized Intersections provides guidelines to help in the justification, design, and analysis of auxiliary through lanes (ATLs) at signalized intersections.
ATLs are lanes for through movements that begin upstream of a signalized intersection and end downstream of the intersection. ATLs are potentially a moderate-cost approach to increase intersection and overall corridor capacity.
A report that describes the research related to the development of
TRB's National Cooperative Highway Research Program (NCHRP) Report 714: Special Mixture Design Considerations and Methods for Warm-Mix Asphalt: A Supplement to NCHRP Report 673: A Manual for Design of Hot-Mix Asphalt with Commentary presents special mixture design considerations and methods used with warm-mix asphalt.
NCHRP Report 714 is a supplement to NCHRP Report 673: A Manual for Design of Hot-Mix Asphalt. All references to chapters in NCHRP Report 714 refer to the corresponding chapters in NCHRP Report 673
TRB's National Cooperative Highway Research Program (NCHRP) Report 709: Investigation of Short-Term Laboratory Aging of Neat and Modified Asphalt Binders provides a proposed method of testing for short-term laboratory aging of neat and modified asphalt binders using the modified German rotating flask as an alternative to the rolling thin film oven test.
The following appendixes A-E to NCHRP Report 709 are only available in electronic format:
Appendix A: Binder Aging Bibliograp
TRB's second Strategic Highway Research Program (SHRP 2) Report S2-R26-RR-1: Preservation Approaches for High-Traffic-Volume Roadways documents the state of the practice of preservation treatment on asphalt and concrete pavements on high- and low-volume roadways.
The report also report includes general guidelines on the application of preservation treatments on high-volume roadways.
The same project that produced SHRP 2 Report S2-R26-RR-1 also produced SHRP 2 Report S2-R26-RR-2: Guidelines for th[more]
TRB's National Cooperative Highway Research Program (NCHRP) Report 706: Uses of Risk Management and Data Management to Support Target-Setting for Performance-Based Resource Allocation by Transportation Agencies describes how transportation agencies can use risk management and data management to support management target-setting for performance-based resource allocation.
As the final product of a second phase of NCHRP Project 08-70, "Target-Setting Methods and Data Management to Support Performance-Based Resource Allocation by Transportation Agencies," this report supplements [more]
TRB's National Cooperative Highway Research Program (NCHRP) Report 701: Proposed Specifications for LRFD Soil-Nailing Design and Construction contains proposed specifications for the design and construction of soil-nailed retaining structures.
The American Association of State Highway and Transportation Officials (AASHTO) Standard Bridge Specifications, the AASHTO Load and Resistance Factor Design (LRFD) Bridge Design Specifications, and the AASHTO LRFD Bridge Construction Specifications do not include guidance for soil-nailed structures.
In the absence of AASHTO LRFD
TRB's Innovations Deserving Exploratory Analysis (IDEA) Report 148: Cleaning Device to Remove Debris and Chemicals for Crack/Joint Sealing explores development of a tool designed to efficiently remove deicing chemical buildup and prepare pavement cracks and joints for sealing.