Safety

Before and After Studies

Effectiveness Evaluation of Completed HSIP Projects
2015 Study

Before and after analysis of 12 HSIP project locations. Originally issued June 2015. Revised November 2016.

2016 Study

Before and after analysis of 35 HSIP project locations. Originally issued December 2016. Revised August 2018.

2019 Study

Before and after analysis of 29 HSIP project locations. Originally issued December 2019.

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