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2. Barrow K.2018. “Texas Central Trailblazing Privately Funded HSR. Railway Age.”https://www.railwayage.com/passenger/high‐performance/texas‐central‐trailblazing‐privately‐funded‐hsr/.
3. Beal G. M. &J. M.Bohlen1956.“The Diffusion Process.” Increasing Understanding of Public Problems and Policies Conference Paper/Presentation.https://ageconsearch.umn.edu/record/17351?ln=en.
4. Board of Directors. n.d. “Texans Against High Speed Rail.”https://www.texansagainsthsr.com/about‐us/#directors
5. Policy Climates and Reductions in Automobile Use*