https://texasshsp.com/wp-content/uploads/2019/02/SHSP-2019-v3.pdf
Strategic Highway Safety Plan 2017-2022 – Strategies, Countermeasures and Action Plans
https://texasshsp.com/wp-content/uploads/2019/10/SHSP-layout-10-4-19-FINAL-UPDATED.pdf
Texas Strategic Highway Safety Plan
https://ftp://ftp.dot.state.tx.us/pub/txdot-info/library/pubs/gov/shsp.pdf
FHWA Clearinghouse
http://www.cmfclearinghouse.org/
Countermeasures That Work
https://www.nhtsa.gov/sites/nhtsa.dot.gov/files/812202-countermeasuresthatwork8th.pdf
Transportation Research Information Systems (TRIS)
http://www.trb.org/InformationServices/InformationServices.aspx