Borough President James Oddo and the MTA announced the study, which will end next year.
More than 2,000 additional people could ride the L train per hour with the improvements, the MTA said.
Service halted between Brooklyn and Queens so workers could repair damage from Hurricane Sandy.
The MTA is creating new bus routes and extending service on lines citywide due to growing ridership.
The MTA updated its iPhone and web app to include real time updates for the Staten Island Railway.
85 rail sections from the same batch were also tested and no defects were found, officials said Monday.
Officials are still trying to determine the cause of the F train derailment, which injured 19 people.
The change is to meet ridership demand, which is at an all-time high, according to the MTA.
The project also improved electrical and signal installations at the station.
Trains will make all local stops between midnight and 6:30 a.m. starting in December.
The M8, Q31 and Q77 will get restored or increased subway service, according to the MTA.
The renovation of the Dyckman Street station replaced the platforms and added a new elevator and ramp.
The station, slated to open in 2015, will replace the Atlantic and Nassau stations.
Trains between Brooklyn and Manhattan will run over the Manhattan Bridge instead.
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