Highways, Roads and Bridges - As introduced, requires TACIR to study overall road safety and submit its recommendations to the chair of the committee in the house of representatives with jurisdiction over transportation matters, the chair of the transportation and safety committee of the senate, and the legislative librarian on or before January 15, 2026. - Amends TCA Title 4; Title 54 and Title 55.

SB 446 requires Tennessee's advisory commission on intergovernmental relations (TACIR) to study road safety across all user groups - including teen drivers, older drivers, pedestrians, cyclists, and transit users - and report findings by January 15, 2026. The study must identify safety challenges for each group, recommend behavior improvements, and suggest new safety technologies. State agencies must assist TACIR using existing resources, and the report will go to key legislative committees and the legislative librarian. This procedural bill does not create new laws but mandates a comprehensive safety review.