Chapter 7 - Crash Costs

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Chapter 7 - Crash Costs

Postby khardy » Wed Dec 01, 2010 9:33 am

A question from South Dakota DOT:

Table 7-1 in the HSM indicates the combined Fatal/Injury crash cost includes K/A/B while Table 7-4 indicates the combined Fatal/Injury crash cost to include K/A/B/C.

Which should be used in B/C caluclations?

In the past the SDDOT has used the separate crash type costs in calculating their B/C.

Please respond with any guidance you can offer.

Thanks,
Kelly Hardy
AASHTO
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Re: Chapter 7 - Crash Costs

Postby khardy » Wed Dec 08, 2010 2:18 pm

Here is the response regarding Tables 7-1 and 7-4:

In Table 7-1 “Fatal/Injury (K/A/B)” should be changed to “Fatal/Injury (K/A/B/C)."

Both Table 7-1 and 7-4 reference the same report (FHWA-HRT-05-051) and have the same numerical values. Table 13 in FHWA-HRT-05-051 contains the values for K, A, B, C and O crashes (which were rounded to the nearest hundred dollars in the HSM); Table 15 in the same report shows a “Mean comprehensive cost per crash” of $158, 177 for K/A/B/C and $297,561 for K/A/B.
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