New York City Transit President Andy Byford says subway riders can expect to see improvements to the delay-ridden system by the end of the year.

WCBS reports Byford discussed the system in a “60 Minutes” segment aired on Sunday night.

Byford says the improvements will be costly and require riders’ patience as lines are shut down for upgrades.

He says there’s no gain “without a bit of pain.”

Byford previously proposed a “Fast Forward” plan to overhaul the system in 10 years instead of the initial 40-year estimate.

His proposal includes new signaling, new subway cars and a new fare payment system.

Mayor Bill de Blasio and Gov. Andrew Cuomo, both Democrats, have yet to agree on who should pay for the improvements and how much.

(AP)