The MTA on Monday announced that Select Bus Service along 14th St., which is aimed in part to help shuttle commuters during the L train shutdown in April, will launch in January.

WHEN CAN COMMUTERS START TAKING THE M14 SBS?

Select Bus Service is scheduled to begin Jan. 6, a few months ahead of the shutdown of L train service from Bedford Ave. to 14th St.-8th Ave. that will start in April.

Officials said they had already planned to launch Select Bus Service for 14th St. before it was announced that the L train would shut down between Brooklyn and Manhattan.

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WHAT IS THE ROUTE?

The M14 SBS is meant to supplement M14A and M14D local bus service on 14th St. and make five stops in each direction between First and 10th Avenues.

Officials say the M14 SBS will be extended east to the planned Stuyvesant Cove ferry terminal on the East River to help shuttle ferry customers from Brooklyn.

The SBS will run along the M14 routes, seven days a week, from 6 a.m. to 10 p.m. Officials say crosstown buses will run within two minutes of each other during rush hour.

The MTA says three M14A and M14D stops near Union Square will be temporarily removed or combined to allow for larger areas for pedestrians.

In addition, officials said a westbound local stop at the far side of Union Square West will be temporarily removed, while two eastbound local stops at the far side of Fifth Ave. and at University Place will be merged into one stop on the near side of University Place.

The MTA said New York City Transit and the city transportation department will consult with local residents on a permanent Select Bus Service route for 14th St. once repair work on the L train is completed.

WHAT ELSE CAN COMMUTERS EXPECT FROM THE BUS ROUTE?

The MTA says it will also install fare payment machines on sidewalks along the route.

Like on other SBS routes, riders will be able to board from any door, with the goal of buses running more quickly.​

WHAT CAN NEW YORKERS EXPECT FROM THE L TRAIN SHUTDOWN?

When L trains stop running in Manhattan next year, so will car and truck traffic on 14th St. directly above the subway line.

The city says that from 5 a.m. to 10 pm, seven days a week, only buses will be allowed on the crosstown street, with a few exceptions.

MTA and city transportation officials say about 70 percent of the L train riders are expected to shift to other subway lines, which will see a huge increase in ridership from the expected influx of the new passengers.

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Buses will play a significant role, too, in shuttling riders across the East River.

"80 buses per hour, accommodating 4,200 riders," New York City Transit President Andy Byford said last month. "80 buses per hour will form an intense bus shuttle across the Williamsburg Bridge."

The MTA says its new ferries will also help, carrying up to 1,190 riders on eight boats per hour.