The purpose of this report is to document the activities of the research effort and present the findings of the work accomplished. Transition zone is the area in which it is communicated to drivers that the roadway environment is changing (i.e., from rural to built-up) and that their speed should change as well. This study evaluated treatments that could advise drivers to this. Based on the study findings, it is recommended to add additional speed warning sites to such transition zones.

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