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TRB’s National Cooperative Highway Research Program (NCHRP) Web-Only Document 169: Determining Guidelines for Ramp and Interchange Spacing documents the research effort related to the development of NCHRP Report 687: Guidelines for Ramp and Interchange Spacing.
NCHRP Report 687 explores guidelines for ramp and interchange spacing based on design, operations, safety, and signing considerations.
National Academies of Sciences, Engineering, and Medicine. 2011. Determining Guidelines for Ramp and Interchange Spacing. Washington, DC: The National Academies Press. https://doi.org/10.17226/22899.
| Chapters | skim | |
|---|---|---|
| Front Matter | i-iii | |
| Acknowledgments | 1-2 | |
| Abstract | 3-3 | |
| Chapter 1: Introduction | 4-9 | |
| Chapter 2: Information Gathering | 10-80 | |
| Chapter 3: Research Activities and Findings | 81-146 | |
| Chapter 4: Guidelines | 147-150 | |
| Chapter 5: Resource Document Revisions | 151-160 | |
| Chapter 6: Suggested Research | 161-165 | |
| References | 166-171 | |
| Appendix A: Field Data Collection Sites | 172-176 | |
| Appendix B: Findings from Other NCHRP Datasets | 177-196 | |
| Appendix C: Field Data | 197-234 |
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