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From page 108...
... 108 Abbreviations For your convenience, this table includes the following list of abbreviations that are used within the content of this report. AADT Average annual daily traffic AASHTO American Association of State Highway and Transportation Officials AMAG Access Management Application Guidelines AMM Access Management Manual ANCOVA Analysis of covariance BLUP Best linear unbiased prediction CD Collector-distributor CMF Crash modification factor DDI Diverging diamond interchange DFDen DF denominator DSD Decision sight distance DSDW Downstream driveway DW/mi Driveway per mile fps Feet per second HCM Highway Capacity Manual HSIS Highway Safety Information System HSM Highway Safety Manual ITE Institute of Transportation Engineers mi Miles mph Miles per hour NCHRP National Cooperative Highway Research Program ODOT Oregon Department of Transportation PARCLO Partial cloverleaf interchange PDO Property damage only S/P/Δ Speed, path, and direction change SPUI Single-point urban interchange SSAT Surrogate safety analysis tool REML Restricted maximum likelihood RIRO Right-in, right-out (driveway)

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