NEW YORK (CBSNewYork) – Speedier service is in place on Sunday for Brooklyn subway riders.

Starting this weekend, the Metropolitan Transportation Authority has stepped up the frequency of L Trains by adding 98 more round trips a week. The agency estimates less than five-minute wait times for trains during rush hour, and less than 10-minute wait times at night.

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The new service will cost the MTA $1.7 million a year.

But it’s not all good news for mass-transit riders.

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The Lexington Avenue subway line will be hit with major service disruptions this week. Starting on Monday night, the MTA’s FASTRACK maintenance program will resumes on the 4, 5 and 6 lines.

What does that mean for riders, exactly?

For four nights — from 10 p.m. until 5 a.m. — service will be suspended between Grand Central Terminal and Atlantic Avenue in Brooklyn in both directions.

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Are you in favor of the MTA’s FASTRACK program, or are the service disruptions not worth it? Be heard in the comments section below…