Blüdhaven

Blüdhaven is a city located near Starling City. There appears to be a direct train line from Blüdhaven to Starling City.

Overview
The Hood threatened Marcus Redman on the city's train tracks. (Honor Thy Father)

Deadshot was hired by China White to assassinate Malcolm Merlyn (Dead to Rights)

Malcolm Merlyn held Walter Steele hostage in a low income housing complex in Blüdhaven. (The Undertaking)

Season 1

 * Honor Thy Father
 * The Undertaking

Trivia

 * In the DC Comics, Blüdhaven is the sister city to Gotham and home to former Robin, Dick Grayson, aka Nightwing, as well as his successor Tim Drake the 3rd Robin, and the 4th Batgirl Cassandra Cain.