Development and Application of Quantitative Macro-Level Safety Prediction Models
The
Highway Safety Manual (HSM) is a tool that helps transportation agencies make data-driven
decisions about safety. It includes methods for quantifying safety performance and predicting
crash frequencies. The HSM is currently being updated to include macro-level crash prediction models,
which can be used to assess safety trends at a regional or national level.
NCHRP Research Report 1044: Development and Application of Quantitative Macro-Level Safety Prediction Models,
from TRB's National Cooperative Highway Research Program,
details macro-level models, which have the potential to be a valuable complement to micro-level models,
which are currently
the only type of model included in the HSM.
Supplemental to the report are
NCHRP Web-Only Document 348: Macro-Level Analysis of Safety Planning and Crash Prediction Models: A Guide
and a
spreadsheet tool.
This Summary Last Modified On: 6/20/2023