David Y., Kuhn F. Rapport Inrets, Tome 3, Juillet 1986 htps://www.apta.com/wp-content/uploads/APTA_Fact-Book-2019_Final.pdf « / » https://www.citylab.com/transportation/2018/11/best-transit-american-cities-bus-rail-subway-service/576739/ « / » https://www.citylab.com/transportation/2020/01/light-rail-public-transit-history-streetcar-trolley-funding/604918/
