Also available online via the Web pages of the TRB Cooperative Research Programs (www4.trb.org/trb/crp.nsf).

Also available online via the Web pages of the TRB Cooperative Research Programs (www4.trb.org/trb/crp.nsf).

Also available online via the Web pages of the TRB Cooperative Research Programs (www4.trb.org/trb/crp.nsf).

Also available online via the Web pages of the TRB Cooperative Research Programs (www4.trb.org/trb/crp.nsf).

Also available online via the Web pages of the TRB Cooperative Research Programs (www4.trb.org/trb/crp.nsf).

RB’s National Cooperative Highway Research Program (NCHRP) Synthesis 432: Recent Roadway Geometric Design Research for Improved Safety and Operations reviews and summarizes roadway geometric design literature completed and published from 2001 through early 2011, particularly research that identified impacts on safety and operations.

"The Highway Safety Manual (HSM) is a resource that provides safety knowledge and tools in a useful form to facilitate improved decision making based on safety performance. The focus of the HSM is to provide quantitative information for decision making. The HSM assembles currently available information and methodologies on measuring, estimating and evaluating roadways in terms of crash frequency (number of crashes per year) and crash severity (level of injuries due to crashes). The HSM presents tools and methodologies for consideration of 'safety' across the range of highway activities: planning, programming, project development, construction, operations, and maintenance. The purpose of this is to convey present knowledge regarding highway safety information for use by a broad array of transportation professionals"--p. xxiii, vol. 1.