New entrants had to connect their lines to those of the incumbent so that calls could be switched in both directions.

ECONOMIST: Wiring the office

The preferred route of phase two will take high-speed trains to the Church Fenton area, where they can connect with existing lines and run into York.

BBC: HS2 phase two route 'to benefit York'

He draws pencil sketches, knowing that all lines must connect, and not be too thick or thin.

WSJ: It Takes Craft to Keep Little Ones Clamoring for Mac and Cheese