9_20_11_Crash_Filtering - Ranking or Filtering Locations...

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CE4001 Transportation Safety 1 Ranking or Filtering Locations Should we consider severity? If so, how? extremetech, 2011
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CE4001 Transportation Safety 2 Ranking or Filtering Locations How should we consider severity? Focus on fatalities, if sample size allows Compute equivalent crashes E.g. EPDO (Equivalent Property Damage Only) 9.5PDO=1Fatal 3.5PDO=1Injury so 2.71Injury=1Fatal How are equivalency factors derived? Should they be correlated with crash costs?
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CE4001 Transportation Safety 3 Ranking or Filtering Locations How are equivalency factors derived? Should they be correlated with crash costs? We will discuss valuation at a later lecture Comprehensive costs can be estimated for different crash severities, including medical, societal, loss of productivity, etc.
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CE4001 Transportation Safety 4 Filtering Using Mean Frequency or Rate, “Classic Method” Assume # of crashes at locations of interest follow a standard normal probability distribution Assumption could lead to overestimating of important of locations since small sample sizes might not be normal
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This note was uploaded on 10/26/2011 for the course ECON 101 taught by Professor Dr.siam during the Spring '11 term at American University of Kuwait.

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9_20_11_Crash_Filtering - Ranking or Filtering Locations...

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