https://texasshsp.com/wp-content/uploads/2017/02/Preliminary-Findings_NCTCOG_2016-06-15.pdf
FHWA Speed Management Resources
https://texasshsp.com/wp-content/uploads/2019/07/SpeedMgmt.Resources-NSE-7-2-19.pdf
Aging in Texas (State Demographer Report)
http://demographics.texas.gov/Resources/publications/2016/2016_06_07_Aging.pdf
Safety Evaluation of Advance Street Name Signs
https://www.fhwa.dot.gov/publications/research/safety/09029/index.cfm