Our region needs better suburb-to-suburb transit, but a Metro loop isn't the best option – Greater Greater Washington
How Dallas' most iconic building came to be
Transit Tour Guide: Toronto — TRAINS, BUSES, PEOPLE
Ankara Metro - Railway Technology
File:Long Branch Loop.jpg - Wikimedia Commons
Exhibition Loop and Fleet Loop - Transit Toronto - Content
Line 1 Yonge–University - Wikiwand
Make the effort, and commuter rail can be as effective as rapid transit – The Transport Politic
Transit Toronto Image: Long Branch Loop 19281203
The Handmaid's Tale' on Canadian Rails - Railway Age
eTrain Article - Train Collectors Association