Portland, Oregon Transit

https://en.wikipedia.org/wiki/Portland,_Oregon#Transportation bridges

https://en.wikipedia.org/wiki/MAX_Light_Rail#Current_system

https://en.wikipedia.org/wiki/MAX_Light_Rail#Future

https://en.wikipedia.org/wiki/Portland_Streetcar


https://en.wikipedia.org/wiki/Portland_Streetcar#History ,
http://www.pdxhistory.com/html/oregon_electric.html ,
http://www.pdxhistory.com/html/interurbans.html

https://en.wikipedia.org/wiki/Portland_Streetcar#Comparison_with_light_rail

https://jfdatalinks.blogspot.com/search?q=Portland