Design guidance for freeway mainline ramp terminals.

Author(s)
Torbic, D.J. Hutton, J.M. Bokenkroger, C.D. Harwood, D.W. Gilmore, D.K. Knoshaug, M.M. Ronchetto, J.J. Brewer, M.A. Fitzpatrick, K. Chrysler, S.T. & Stanley, J.
Year
Abstract

This report presents design guidance for freeway mainline ramp terminals based on current driver and vehicle behavior. The report will be useful to freeway designers and those responsible for developing design standards for freeway ramps. Special attention was given to the behavior of tractor-trailers and the report includes several speed-distance curves for tractor-trailers on grades up to 9% that could be useful in other applications (e.g., climbing lanes). 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 at http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_rpt_730AppendixA.pdf ; Appendix B: Histograms of observed acceleration rates at http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_rpt_730AppendixB.pdf ; Appendix C: Verbal instructions for behavioral study at http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_rpt_730AppendixC.pdf ; Appendix D: Potential changes proposed for consideration in the next edition of the green book at http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_rpt_730AppendixD.pdf (Author/publisher)

Publication

Library number
20122300 ST [electronic version only]
Source

Washington, D.C., Transportation Research Board TRB, 2012, 120 p., ref.; National Cooperative Highway Research Program NCHRP Report ; 730 - NCHRP Project 15-31A - ISSN 0077-5614 / ISBN 978-0-309-25854-8

Publication (link)

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