Guidelines for Ramp and Interchange Spacing

Guidelines for Ramp and Interchange Spacing
Author: Brian Ray (Engineer)
Publisher: Transportation Research Board
Total Pages: 194
Release: 2011
Genre: Technology & Engineering
ISBN: 0309155487

TRB's National Cooperative Highway Research Program (NCHRP) Report 687: Guidelines for Ramp and Interchange Spacing explores guidelines for ramp and interchange spacing based on design, operations, safety, and signing considerations. The report is designed to help aid the decision-making process when an agency is considering new ramps or interchanges on existing facilities, modifying ramps and interchanges of existing facilities, or when planning and designing new highway and interchange facilities. The guidelines also offer standardized definitions measuring ramp and interchange spacing, which have varied in previous design guides. A final report documenting the full research effort related to the development of NCHRP Report 687 was published as NCHRP Web-Only Document 169--

Design Guidance for Freeway Mainline Ramp Terminals

Design Guidance for Freeway Mainline Ramp Terminals
Author: Darren J. Torbic
Publisher: Transportation Research Board
Total Pages: 131
Release: 2012
Genre: Technology & Engineering
ISBN: 0309258545

"TRB's National Cooperative Highway Research Program (NCHRP) Report 730: Design Guidance for Freeway Mainline Ramp Terminals presents design guidance for freeway mainline ramp terminals based on current driver and vehicle behavior. Appendixes A to D to NCHRP Report 730 were not published as part of the print or PDF version of the report. They are only available electronically through the following links: Appendix A: Aerial View of Study Locations. Appendix B: Histograms of Observed Acceleration Rates. Appendix C: Verbal Instructions for Behavioral Study. Appendix D: Potential Changes Proposed for Consideration in the Next Edition of the Green Book (Note: Appendix D contains tracked changes that have been intentionally left intact--i.e., not accepted.)" Appendices are available at: http://www.trb.org/Highways1/Blurbs/167516.aspx--