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Project-level traffic forecasting is a specialized set of techniques to better make forecasts over short time horizons, typically by using ground data along with other methodologies. Project-level traffic forecasting became well established with the publication of NCHRP Report 255, which was itself updated by NCHRP Report 765. The "Hawaii Guidelines" are a rewritten version of much of the material in NCHRP Report 765, and these guidelines form the basis for this article.



Forecasting process

Quality assurance and validation standards

Choice of techniques