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This free publication lists all available AASHTO publications with descriptions, prices for AASHTO members and non-members, ordering information and much, much more!

Item Detail
Highway Safety Manual, First Edition, 2014 Supplement
The Highway Safety Manual Supplement includes two new chapters that help utilize the predictive method to estimate the expected average crash frequency (in total, by crash type, or by crash severity) for both freeways and ramps with known characteristics. The third chapter, Appendix B for Part C, describes two specialized procedures to be used with the predictive method presented in the new Chapters 18 and 19; the first procedure is used to calibrate the predictive models; the second, the Empirical Bayes Method, helps combine observed crash frequencies with the estimates provided by the predictive models.

A video describing the contents of the supplement can viewed here.

A copy of the March 2016 can be downloaded from the link below. The changes from this errata are incorporated directly into the download version.

The download version is a single user downloadable PDF file. You must become an E-Affiliate to purchase this item. See the PDF Download User Guide for complete details.

Download Item System Requirements: Windows operating system, Adobe Reader. You will only be able to open this file while connected to the Internet. All sales in this format are final: there are no refunds on download items.

Item Pages: 324
Download: Table of Contents (1.4 MB)
Download: March 2016 Errata (1.3 MB)
Year Published: 2014
Below is the list of formats that this publication is available in. See the AASHTO Electronic Publications User Guide for descriptions of these formats.
Item FormatItem CodeItem TitleMember PriceNon-Member PriceAvailabilityQuantity 
Paperback HSM-1S Highway Safety Manual, First Edition, 2014 Supplement $219.00 $295.00 In Stock
Download HSM-1S-UL Highway Safety Manual, First Edition, 2014 Supplement, Single User PDF Download $175.00 $236.00 In Stock
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