TxDOT has SSTs for two-lane rural roadways, multi-lane rural roadways, and urban intersections. Information regarding these tools can be found in

Appendix G, Section 7 – Safer By Design

. Static versions are also included in

Appendix G, Section 1 – Rural Multi-Lane Road Segment Safety Scoring Tool, Appendix G, Section 2 – Rural Two-Lane Road Segment Safety Scoring Tool, and Appendix G, Section 3 – Urban Intersection Safety Scoring Tool

. TxDOT also has an Eligibility Matrix used as guidance for determining when the SST is applicable to a project. The Eligibility Matrix for the Rural Highways is shown in

Appendix G, Section 5 – External References (Reference 14)

and the Eligibility Matrix for Urban Intersections is shown in

Appendix G, Section 5 – External References (Reference 13)

. The goal of the SSTs is to understand safety effects of design elements and optimize safety before a project is constructed. There is no specific safety score to aim for. The intent is to get the highest score for a particular project, given the constraints. These tools make use of several SPFs and CMFs. The tools can be used for all phases of project development, however, the most value is in using it during the initial scoping stages. Scores from the initial scoping phase and at final PS&E are necessary for reporting purposes. Safety scorings are necessary for PM, 2R, 3R and 4R projects. These project types are defined in TxDOT’s RDM.