− | Keep an eye on where each service is going - trains may enter from the slow lines but need to travel to Chingford or via Tottenham Hale. Additionally, some trains have long dwell times at Hackney Downs, so shouldn't be routed too early. | + | * Keep an eye on where each service is going - trains may enter from the slow lines but need to travel to Chingford or via Tottenham Hale. Additionally, some trains have long dwell times at Hackney Downs, so shouldn't be routed too early. |