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I'm used to B/C ratios where 1 = parity between options, numbers < 1 are worse, and numbers over 1 are better. The Roadside Safety Analysis Program does not give straight CBRs. Instead it compares alternatives in such a way that negative numbers are worse, 0 = parity and positive numbers are better. Any idea what equation they use? Thanks. --Triskele Jim (talk) 15:01, 3 February 2009 (UTC)[reply]
