G train starts night and weekend service changes. Here's what riders in Brooklyn and Queens need to know.

"G train riders in Brooklyn and Queens will experience service disruptions starting Monday, with no service between Court Square and Bedford-Nostrand Avenues on select weeknights and weekends."

"Service will be replaced with free B98 shuttle buses from 9:45 p.m. to 8 a.m. on specific nights, affecting trips until August 18."

"The MTA is modernizing the subway signal system on the G line, which connects key neighborhoods, necessitating these ongoing service disruptions for upgrades."

"The old signals on the G line were over 90 years old and required replacement with a newer communications-based train control system."

G train service is disrupted between Court Square and Bedford-Nostrand Avenues starting Monday, with replacements by free B98 shuttle buses on specific nights until August 18. The disruptions occur from 9:45 p.m. to 8 a.m. and will affect various dates throughout the month. The MTA is upgrading the subway signal system on the G line to enhance communication and safety. Last summer, the line was fully shut down for these improvements, impacting approximately 160,000 daily riders who relied on shuttle services during that time.

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