Development of Analysis Methods Using Recent Data (2012) / Chapter Skim
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1This report describes work done during Phase 2 of SHRP 2 Safety Project S01A, Development of Analysis Methods Using Recent Data. In the report submitted at the end of Phase 1, three research problems were identified on which progress was needed.
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2illustrates model identification and estimation using speedometer, radar range, and radar rangerate data for a near-crash event from the 100-car vehicle-based study. The team also illustrates a what-if counterfactual analysis where the final deceleration of the following vehicle is varied over a range of values, for each of which, other things being equal, the probability that a collision would have resulted is computed.
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34. Although the CICAS system as currently configured was not designed to collect and process crash and near-crash trajectory data, with technical modifications it could support site-based field research, at least at lower-volume intersections.
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