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SHRP 2 Capacity Project C40B1 Application of Geospatial Ecological Tools and Data in the Planning and Programming Phases of Delivering New Highway Capacity: Proof of ConceptâUS-101, California
SHRP 2 Capacity Project C40B1 Application of Geospatial Ecological Tools and Data in the Planning and Programming Phases of Delivering New Highway Capacity: Proof of ConceptâUS-101, California James H. Thorne, Jacquelyn H. Bjorkman, and Patrick R. Huber Information Center for the Environment University of California, Davis TRANSPORTATION RESEARCH BOARD Washington, D.C. 2015 www.TRB.org
© 2015 National Academy of Sciences. All rights reserved. ACKNOWLEDGMENT This work was sponsored by the Federal Highway Administration in cooperation with the American Association of State Highway and Transportation Officials. It was conducted in the second Strategic Highway Research Program, which is administered by the Transportation Research Board of the National Academies. COPYRIGHT INFORMATION Authors herein are responsible for the authenticity of their materials and for obtaining written permissions from publishers or persons who own the copyright to any previously published or copyrighted material used herein. The second Strategic Highway Research Program grants permission to reproduce material in this publication for classroom and not-for-profit purposes. Permission is given with the understanding that none of the material will be used to imply TRB, AASHTO, or FHWA endorsement of a particular product, method, or practice. It is expected that those reproducing material in this document for educational and not-for-profit purposes will give appropriate acknowledgment of the source of any reprinted or reproduced material. For other uses of the material, request permission from SHRP 2. NOTICE The project that is the subject of this document was a part of the second Strategic Highway Research Program, conducted by the Transportation Research Board with the approval of the Governing Board of the National Research Council. The Transportation Research Board of the National Academies, the National Research Council, and the sponsors of the second Strategic Highway Research Program do not endorse products or manufacturers. Trade or manufacturersâ names appear herein solely because they are considered essential to the object of the report. DISCLAIMER The opinions and conclusions expressed or implied in this document are those of the researchers who performed the research. They are not necessarily those of the second Strategic Highway Research Program, the Transportation Research Board, the National Research Council, or the program sponsors. The information contained in this document was taken directly from the submission of the authors. This material has not been edited by the Transportation Research Board. SPECIAL NOTE: This document IS NOT an official publication of the second Strategic Highway Research Program, the Transportation Research Board, the National Research Council, or the National Academies.
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AUTHOR ACKNOWLEDGMENTS This work was sponsored by the Federal Highway Administration in cooperation with the American Association of State Highway and Transportation Officials. It was conducted in the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies. This project was managed by Stephen J. Andrle, Chief Program Officer for SHRP 2 Capacity and SHRP 2 Deputy Director. The authors would like to thank Christopher Dosch (Caltrans District 1), David Yam (Caltrans District 4), Nancy Siepel (Caltrans District 5), Tim Ash (Caltrans), Stuart Kirkham (Caltrans), and Tanya Diamond (Pathways for Wildlife) for their help in developing data and methods for this project.
Contents 1 Executive Summary 3 CHAPTER 1 Introduction 3 RAMP Framework and Mitigation Planning in California 5 RAMP Working Group 8 U.S. Highway 101: The C40B1 Study Area 11 CHAPTER 2 Research Approach: Methodology 11 Data Review 12 Transportation Project Preparation 13 Biological Data Preparation 15 Calculation of Biological Impacts 15 Calculation of Aquatic Impacts 16 Calculation of Urban Impacts 17 CHAPTER 3 Findings and Applications: Assessment Results 17 Analysis of Transportation Projects 19 Analysis of Impacts to Species 21 Analysis of Urban Impacts 22 Analysis of Aquatic Impacts 26 CHAPTER 4 Conclusions and Recommendations 26 Review and Enhancements of RAMP 31 Review of National-Level Tools 37 Opportunities and Next Steps 40 REFERENCES 42 APPENDIX A Memorandum of Underlying Signatory Sheet 46 APPENDIX B Data Sources
