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The Network Screening Tool identifies sites with potential for safety improvements. The Diagnosis Tool is used to diagnose the nature of safety problems at specific sites. The Countermeasure Selection Tool assists users in the selection of countermeasures to reduce accident frequency and severity at specific sites. The Economic Appraisal Tool performs an economic appraisal of a specific countermeasure or several alternative countermeasures for a specific site. The Priority Ranking Tool provides a priority ranking of sites and proposed improvement projects based on the benefit and cost estimates determined by the economic appraisal tool. The Countermeasure Evaluation Tool provides the capability to conduct before/after evaluations of implemented safety improvements. |