Good news: Coney Island-bound F and Church Ave.-bound G trains will once again stop at 15th Street-Prospect Park and Fort Hamilton Parkway starting on Monday morning.

Bad news: The rest of this weekend’s service changes. Subway Weekender has the map.

From 12:01 a.m. Saturday, March 31 to 5 a.m. Monday, April 2, there is no 1 train service between 242nd Street and 168th Street due to Dyckman Street station and structural rehabilitation, platform edge and canopy work at stations between 207th and 242nd Sts. and track panel installation north of 215th Street.

• For 181st and 191st Streets, take the uptown 1 to 168th Street and transfer to the M3 or free shuttle buses on St. Nicholas Avenue
• For Dyckman Street and 207th Street, take the uptown 1 to 168th Street and transfer to the A
• For stations from 215th to 242nd Street, take the uptown 1 to 168th Street and transfer to the A to 207th Street, free shuttle buses are available on Broadway

From 12:01 a.m. to 6:30 a.m., Saturday, March 31 and Sunday, April 1 and from 12:01 a.m. to 5 a.m., Monday, April 2, downtown 4 trains run express from 14th Street-Union Square to Brooklyn Bridge due to work on the Broadway/Lafayette-to-Bleecker Street connection.

From 12:01 a.m. to 6:30 a.m. Saturday, March 31 and from 12:01 a.m. to 5 a.m. Sunday April 1, downtown 4 trains run express from Grand Central-42nd Street to 14th Street-Union Square due to installation of conductor and gap filler lights at 14th Street-Union Square.

From 6 a.m. to 11:30 p.m., Saturday, March 31 and from 8 a.m. to 11:30 p.m., Sunday, April 1, 5 trains run every 20 minutes between Dyre Avenue and Bowling Green due to work on the Broadway/Lafayette-to-Bleecker Street connection.

From 12:01 a.m. Saturday, March 31 to 5 a.m. Monday, April 2, downtown 6 trains run express from 14th Street-Union Square to Brooklyn Bridge due to work on the Broadway/Lafayette-to-Bleecker Street connection.

From 12:01 a.m. Saturday, March 31 to 5 a.m. Sunday, April 1, downtown 6 trains run express from Grand Central-42nd Street to 14th Street-Union Square due to the installation of conductor and gap filler lights at 14th Street-Union Square.

From 12:01 a.m. Saturday, March 31 to 5 a.m. Monday, April 2, there are no 7 trains between Times Square-42nd Street and Queensboro Plaza due to track panel installation and CBTC work south of Queensboro Plaza, ADA work at Court Square and station renewal at Hunters Point Avenue. Customers should take the N, R, E or F between Manhattan and Queens. Free shuttle buses operate between Vernon Blvd-Jackson Avenue and Queensboro Plaza. In Manhattan, the 42nd Street shuttle (S) operates overnight. Note: Court Square (7) station is scheduled to reopen 5 a.m. Monday, April 2.

From 12:01 a.m. Saturday, March 31 to 5 a.m. Monday, April 2, 207th Street-bound A trains run via the F line from Jay Street-MetroTech to West 4th Street, then local to 59th Street-Columbus Circle due to electrical and substation work at Jay Street-MetroTech.

From 6:30 a.m. to midnight, Saturday, March 31 and Sunday, April 1, there are no C trains between Manhattan and Brooklyn due to the Culver Viaduct Rehabilitation and tunnel lighting installation.

From 12:01 a.m. Saturday, March 31 to 5 a.m. Monday, April 2, Manhattan-bound D trains run via the N line from Coney Island-Stillwell Avenue to 36th Street due to station and line structure rehabilitation near 9th Avenue, then local in both directions between 36th Street and Atlantic Av-Pacific St. due to Culver Viaduct Rehabilitation and tunnel lighting installation.

From 11 p.m. Friday, March 30 to 5 a.m. Monday, April 2, Manhattan-bound D trains skip 182nd-183rd Sts. due to track maintenance.

From 12:01 a.m. Saturday, March 31 to 5 a.m. Monday, April 2, Jamaica Center-bound E trains run express from Roosevelt Avenue to Forest Hills-71st Avenue due to track maintenance.

From 12:01 a.m. Saturday, March 31 to 5 a.m. Monday, April 2, there are no F trains between Jay Street-MetroTech and 18th Avenue due to Culver Viaduct Rehabilitation and tunnel lighting installation. F trains run in two sections:

• Between 179th Street and Jay Street-MetroTech, then rerouted via the C to Euclid Avenue
• Between 18th Avenue and Coney Island-Stillwell Avenue

Free shuttle buses operate in three sections:

• Between Jay Street-MetroTech and 18th Avenue (Limited stop), making stops at Church Avenue and Ditmas Avenue only
• Between Jay Street-MetroTech and 4th Avenue-9th Street, making stops at Bergen Street, Carroll Street and Smith-9th Sts only
• Between 4th Avenue-9th Street and Church Avenue, making stops at 7th Avenue, 15th Street-Prospect Park and Ft. Hamilton Parkway only

From 11 p.m. Friday, March 30 to 5 a.m. Monday, April 2, Brooklyn-bound F trains run via the M line after 36th Street in Queens to 47th-50th Sts in Manhattan due to SAS work at Lexington Avenue-63rd Street station.

From 12:01 a.m. Saturday, March 31 to 5a.m., Monday, April 2, there are no G trains between Hoyt-Schermerhorn Sts. and Church Avenue due to Culver Viaduct Rehabilitation and tunnel lighting installation. Free shuttle buses provide alternate service via Jay Street-Metro-Tech (see F entry). G trains operate between Court Square and Hoyt-Schermerhorn Sts.

From 4 a.m. Saturday, March 31 to 10 p.m., Sunday, April 1, Jamaica Center-bound J trains skip Kosciuszko Street, Gates Avenue, Halsey Street and Chauncey Street due to track panel installation at Halsey Street and Gates Avenue.

From 7 a.m. to 9 p.m., Saturday, March 31 and from 9 a.m. to 7 p.m. Sunday, April 1, Q service is extended to Ditmars Blvd. due to work on the 7 line.

From 6:30 a.m. to 12 midnight, Saturday, March 31 and Sunday, April 1, Forest Hills-71st Avenue-bound R trains run express from Roosevelt Avenue to 71st Avenue due to track maintenance.

(42nd Street Shuttle)
From 12:01 a.m. to 6 a.m., Saturday, March 31, Sunday, April 1 and Monday, April 2, the 42nd Street shuttle operates all night, every 10 minutes, due to the 7 line suspension between Queens and Manhattan.

Happy Friday. The map is here.

From 12:01 a.m. to 6:30 a.m., Saturday, March 24 and Sunday, March 25 and from 12:01 a.m. to 5 a.m., Monday, March 26, uptown 4 trains run express from Brooklyn Bridge to 14th Street-Union Square, then local to 125th Street due to work on the Broadway/Lafayette-to-Bleecker Street connection.

From 12:01 a.m. Saturday, March 24 to 5 a.m. Monday March 26, downtown 4 trains run local from 125th Street to Brooklyn Bridge due to signal enhancement.

From 6 a.m. to 11:30 p.m., Saturday, March 24 and from 8 a.m. to 11:30 p.m., Sunday, March 25, uptown 5 trains run local from 14th Street-Union Square to 125th Street and 5 trains run every 20 minutes between Bowling Green and Dyre Avenue due to track plate replacement at Brooklyn Bridge. In addition, downtown 5 trains run local from 125th Street to Brooklyn Bridge due to signal enhancement.

From 12:01 a.m. Saturday, March 24 to 5 a.m. Monday, March 26, uptown 6 trains run express from Brooklyn Bridge to 14th Street-Union Square due to work on the Broadway/Lafayette-to-Bleecker Street connection. In addition, 6 service is extended to Bowling Green due to track plate replacement at Brooklyn Bridge.

From 12:01 a.m. Saturday, March 24 to 5 a.m. Monday, March 26, there are no 7 trains between Times Square-42nd Street and Queensboro Plaza due to track panel installation and CBTC work south of Queensboro Plaza, ADA work at Court Square and station renewal at Hunters Point Avenue. Customers should take the N, R, E or F between Manhattan and Queens. Free shuttle buses operate between Vernon Blvd-Jackson Avenue and Queensboro Plaza. In Manhattan, the 42nd Street shuttle (S) operates overnight. (Repeats next weekend — March 31-Apr 2.)

From 12:01 a.m. Saturday, March 24 to 5 a.m. Monday, March 26, 207th Street-bound A trains run via the F line from Jay Street-MetroTech to West 4th Street, then local to 59th Street-Columbus Circle due to electrical and substation work at Jay Street-MetroTech.

From 12:01 a.m. to 5 a.m., Saturday, March 24, Queens-bound A trains skip Ralph Avenue and Rockaway Avenue due to removal and replacement of corroded steel beams south of Ralph Avenue.

From 6:30 a.m. to 11 p.m. Saturday, March 24 and Sunday, March 25, 168th Street-bound C trains run via the F line from Jay Street-MetroTech to West 4th Street due to electrical and substation work at Jay Street-MetroTech.

From 11 p.m. Friday, March 23 to 5 a.m. Monday, March 26, Manhattan-bound D trains skip 182nd-183rd Sts due to track bed repairs.

From 12:01 a.m. Saturday, March 24 to Monday, March 26, Jamaica-bound E trains run express from Roosevelt Avenue to Forest Hills-71st Avenue due to track maintenance.

From 11 p.m. Friday, March 23 to 5 a.m. Monday, March 26, Brooklyn-bound F trains run via the M line after 36th Street in Queens to 47th-50th Sts in Manhattan due to SAS work at Lexington Avenue-63rd Street station.

From 4 a.m. Saturday, March 24 to 10 p.m., Sunday, March 25, Jamaica Center-bound J trains skip Kosciuszko Street, Gates Avenue, Halsey Street and Chauncey Street due to track panel installation at Halsey Street and Gates Avenue.

From 12:01a.m. to 6:30 a.m., Saturday, March 24 and Sunday, March 25 and from 12:01 a.m. to 5 a.m., Monday, March 26, Manhattan-bound N trains run via the Manhattan Bridge from DeKalb Avenue to Canal Street due to station painting at City Hall.

From 12:01 a.m. Saturday, March 24 to 5 a.m. Monday, March 26, Coney Island-bound N trains run via the D line from 36th Street to Coney Island-Stillwell Avenue due to track panel installation south of 59th Street.

From 7 a.m. to 9 p.m., Saturday, March 24 and from 9 a.m. to 7 p.m. Sunday, March 25, Q service is extended to Ditmars Blvd. due to work on the 7 line.

From 6:30 a.m. to midnight, Saturday, March 24 and Sunday, March 25, Manhattan-bound R trains run via the Manhattan Bridge from DeKalb Avenue to Canal Street due to station painting at City Hall.

From 6:30 a.m. to 12 midnight, Saturday, March 24 and Sunday, March 25, Forest Hills-71st Street-bound R trains run express from Roosevelt Avenue to 71st Avenue due to track maintenance.

(42nd Street Shuttle)
From 12:01 a.m. to 6 a.m., Saturday, March 24, Sunday, March 25 and Monday, March 26, the 42nd Street shuttle operates all night, every 10 minutes, due to the 7 line suspension between Queens and Manhattan.

Friday already, huh? These weeks just fly by sometimes. Subway Weekender has the map and notes that the light work schedule is likely due to St. Patrick’s Day. Transit has to keep the subways running for the drunk hoards of folks roaming around the city. Personally, I subscribe to Chris’ take on the holiday, and I’ll be out celebrating my dad’s birthday anyway.

In other news, I’m hearing that the Smith/9th St. station along the F and G trains will not be reopening until the fall. Original estimates had the station returning to service some time this spring. I’ll try to confirm this development next week.

Anyway, here are the service changes. You know what to do.

From 7 a.m. to 7 p.m., Sunday, March 18, Woodlawn-bound 4 trains skip 138th Street-Grand Concourse due to platform edge survey at 149th Street-Grand Concourse.

From 12:01 a.m. Saturday, March 17 to 5 a.m. Monday, March 19, there are no 7 trains between Times Square-42nd Street and Queensboro Plaza due to track panel installation and CBTC work south of Queensboro Plaza, ADA work at Court Square and station renewal at Hunters Point Avenue. Customers should take the N, R, E or F between Manhattan and Queens. Free shuttle buses operate between Vernon Blvd-Jackson Avenue and Queensboro Plaza. In Manhattan, the 42nd Street shuttle (S) operates overnight. (Repeats next two weekends through March 31-Apr 2.)

From 12:01 a.m. Saturday, March 17 to 5 a.m. Monday, March 19, A trains run local in both directions between 145th Street and 168th Street and from 6:30 a.m. to 11 p.m., Saturday, March 17, and Sunday, March 18, there is no C train service between 145th Street and 168th Street due to track maintenance. Customers should take the A instead.

From 12:01 a.m. Saturday, March 17 to 5 a.m. Monday, March 19, Coney Island-bound D trains run via the N line from 36th Street to Coney Island-Stillwell Avenue due to station and line structure rehabilitation near 9th Avenue.

From 4 a.m. Saturday, March 17 to 10 p.m., Sunday, March 18, Jamaica Center-bound J trains skip Kosciuszko Street, Gates Avenue, Halsey Street and Chauncey Street due to track panel installation at Halsey Street and Gates Avenue.

From 7 a.m. to 9 p.m., Saturday, March 17 and from 9 a.m. to 7 p.m. Sunday, March 18, Q service is extended to Ditmars Blvd. due to work on the 7 line.

From 4 a.m. Saturday, March 17 to 10 p.m. Sunday, March 18, Coney Island-bound Q trains skip Avenue U and Neck road due to track tie insertion.

(42nd Street Shuttle)
From 12:01 a.m. to 6 a.m., Saturday, March 17, Sunday, March 18 and Monday, March 19, 42nd Street operates all night, every 10 minutes, due to the 7 line suspension between Queens and Manhattan.

Want to marvel at subway construction over the weekend? Check out Jake Dobkin’s photos from inside the Second Ave. Subway. Despite the drama above ground and the costs associated with this project, it’s amazing to ponder and view the scope of working happening underneath Second Ave. in Manhattan right now.

Meanwhile, weekend service changes. Ready, set, go.

From 7 a.m. to 5 p.m., Sunday, March 11, downtown 1 trains skip 125th, 116th, 110th and 103rd Streets due to switch repairs near 137th Street.

From 4 a.m. Saturday, March 10 to 10 p.m. Sunday, March 11, downtown 2 trains run express from East 180th Street to 3rd Avenue-149th Street due to track panel installation at East 180th Street.

From 12:01 a.m. to 6:30 a.m., Saturday, March 10 and Sunday, March 11 and from 12:01 a.m. to 5 a.m. Monday, March 12, uptown 4 trains run express from Brooklyn Bridge to 14th Street-Union Square due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection.

From 10 p.m. Friday, March 9 to 5 a.m. Monday, March 12, downtown 4 trains run local from 125th to Grand Central-42nd Street due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection.

From 6 a.m. to 10 p.m., Saturday, March 10 and from 8 a.m. to 10 p.m., Sunday, March 11, downtown 5 trains run express from East 180th Street to 3rd Avenue-Grand Concourse due to track panel installation at East 180th Street.

From 6 a.m. to 10 p.m., Saturday, March 10 and from 8 a.m. to 10 p.m., Sunday, March 11, downtown 5 trains run local from 125th Street to Grand Central-42nd Street due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection.

From 10 p.m. Friday, March 9 to 5 a.m. Monday, March 12, uptown 6 trains run express from Brooklyn Bridge to 14th Street-Union Square due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection.

From 12:01 a.m. Saturday, March 10 to 5 a.m. Monday, March 12, there are no 7 trains between Times Square-42nd Street and Queensboro Plaza due to track panel installation and CBTC work south of Queensboro Plaza, ADA work at Court Square and station renewal at Hunters Point Avenue. Customers should take the N, R, E or F between Manhattan and Queens. Free shuttle buses operate between Vernon Blvd-Jackson Avenue and Queensboro Plaza. In Manhattan, the 42nd Street shuttle (S) operates overnight. (Repeats next three weekends through March 31-Apr 2.)

From 12:01 a.m. Saturday, March 10 to 5 a.m. Monday, March 12, A trains run local in both directions between 145th Street and 168th Street and from 6:30 a.m. to 11 p.m., Saturday, March 10, and Sunday, March 11, there is no C train service between 145th Street and 168th Street due to track maintenance. Customers should take the A instead.

From 12:01 a.m. Saturday, March 10 to 5 a.m. Monday, March 12, 207th Street-bound A trains run via the F line from Jay Street-MetroTech to West 4th Street, then local to 59th Street-Columbus Circle due to track maintenance.

From 6:30 a.m. to 11 p.m., Saturday, March 10 and Sunday, March 11, uptown C trains run via the F line from Jay Street-MetroTech to West 4th Street due to track maintenance.

From 6:30 a.m. to 11 p.m., Saturday, March 10 and Sunday, March 11, downtown C trains skip 50th, 23rd, and Spring Sts. due to electrical and substation work at Jay Street-MetroTech.

From 12:01 a.m. Saturday, March 10 to 5 a.m. Monday, March 12, there is no D train service between Atlantic Avenue-Pacific Street and 34th Street-Herald Square due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection. D trains operate in two sections:

• Between 205th Street (Bronx) and 34th Street-Herald Square.
• Between Atlantic Avenue-Pacific Street and Coney Island-Stillwell Avenue

Customers may transfer to the N line at Atlantic Avenue-Pacific Street and Coney Island- Stillwell Avenue. Free shuttle buses provide connecting service between Grand Street, the uptown F at Broadway-Lafayette and the A, C, E, or F at West 4th Street.

From 12:01 a.m. Saturday, March 10 to 5 a.m. Monday, March 12, Jamaica Center-bound E trains run express from Roosevelt Avenue to Forest Hills-71st Avenue due to track maintenance.

This work has been cancelled. Brooklyn-bound F service will operate on its usual weekend schedule.

From 4 a.m. Saturday, March 10 to 10 p.m., Sunday, March 11, Queens-bound J trains skip Kosciuszko Street, Gates Avenue, Halsey Street and Chauncey Street due to track panel installation at Halsey Street and Gates Avenue.

From 12:01 a.m. Saturday, March 10 to 5 a.m. Monday, March 12, trains run local in both directions between DeKalb Avenue and 59th Street (Brooklyn) due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection.

From 7 a.m. to 9 p.m., Saturday, March 10 and from 9 a.m. to 7 p.m. Sunday, March 11, service is extended to Ditmars Blvd. due to work on the 7 line.

From 6:30 a.m. to 12 midnight, Saturday, March 10 and Sunday, March 11, Forest Hills-71st Avenue-bound R trains run express from Roosevelt Avenue to Forest Hills-71st Avenue due to track maintenance.

From 12:01 a.m. to 6:30 a.m., Saturday, March 10 and Sunday, March 11, and from 12:01 a.m. to 5 a.m. Monday, March 12, there are no R trains between 59th Street and 36th Street in Brooklyn due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection.

(42nd Street Shuttle)
From 12:01 a.m. to 6 a.m., Saturday, March 10, Sunday, March 11 and Monday, March 12, 42nd Street operates all night, every 10 minutes, due to the 7 line suspension between Queens and Manhattan.

We’re starting the weekend a little early around here this week so let’s dive into the service changes. The 8th Ave. FASTRACK is on track for the 12th so next week offers us a reprieve from weekday changes. In the meantime, we have the following weekend advisories. Subway Weekender has the map.

From 7 a.m. to 5 p.m., Sunday, March 4, downtown 1 trains skip 125th, 116th, 110th and 103rd Streets due to switch repairs near 137th Street.

From 4 a.m. Saturday, March 3 to 10 p.m. Sunday, March 4, downtown 2 trains run express from East 180th Street to 3rd Avenue-149th Street due to track panel installation at East 180th Street.

From 12:01 a.m. to 6:30 a.m., Saturday, March 3 and Sunday, March 4 and from 12:01 a.m. to 5 a.m. Monday, March 5, uptown 4 trains run express from Brooklyn Bridge to 14th Street-Union Square due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection and station painting at Astor Place and Spring Street.

From 10 p.m. Friday, March 2 to 5 a.m. Monday, March 5, downtown 4 trains run local from 125th to Grand Central-42nd Street due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection and station painting at Astor Place and Spring Street.

From 7 a.m. to 7 p.m., Sunday, March 4, uptown 4 trains skip 138th Street-Grand Concourse due to track and platform edge survey at 149th Street.

From 6 a.m. to 11 p.m., Saturday, March 3 and from 8 a.m. to 10 p.m., Sunday, March 4, downtown 5 trains run express from East 180th Street to 3rd Avenue-Grand Concourse due to track panel installation at East 180th Street.

From 6 a.m. to 11 p.m., Saturday, March 3 and from 8 a.m. to 10 p.m., Sunday, March 4, downtown 5 trains run local from 125th Street to Grand Central-42nd Street due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection and station painting at Astor Place and Spring Street.

From 10 p.m. Friday, March 2 to 5 a.m. Monday, March 5, uptown 6 trains run express from Brooklyn Bridge to 14th Street-Union Square due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection and station painting at Astor Place and Spring Street.

From 12:01 a.m. Saturday, March 3 to 5 a.m. Monday, March 5, there are no 7 trains between Times Square-42nd Street and Queensboro Plaza due to track panel installation and CBTC work south of Queensboro Plaza, ADA work at Court Square and station renewal at Hunters Point Avenue. Customers should take the N, R, E or F between Manhattan and Queens. Free shuttle buses operate between Vernon Blvd-Jackson Avenue and Queensboro Plaza. In Manhattan, the 42nd Street shuttle (S) operates overnight. (Repeats next four weekends through March 31-Apr 2.)

From 12:01 a.m. Saturday, March 3 to 5 a.m. Monday, March 5, A trains run local in both directions between 145th Street and 168th Street and from 6:30 a.m. to 11 p.m., Saturday, March 3, and Sunday, March 4, there is no C train service between 145th Street and 168th Street due to track maintenance. Customers should take the A instead.

From 11 p.m. Friday, March 2 to 4:45 a.m. Monday, March 5, free shuttle buses replace A trains between Beach 90th Street and Far Rockaway due to track panel installation between Beach 67th and Beach 60th Streets.

From 12:01 a.m. Saturday, March 3 to 5 a.m. Monday, March 5, Brooklyn-bound D trains run via the N line from 36th Street to Coney Island-Stillwell Avenue due to station and line structure rehabilitation near 9th Avenue. Note: Free transfers are available at New Utrecht Avenue-62nd Street with MetroCards. This out-of-system transfer at street level via new Utrecht Avenue is available until May 2012. Look for instructions on station signs.

From 12:01 a.m. Saturday, March 3 to 5 a.m. Monday, March 5, there is no L train service between Broadway Junction and 8th Avenue due to signal removal. The M train, M14 bus and free shuttle buses provide alternate service.

• M service is extended to the 57th Street F station.
• Customers may take to M14 bus between 1st Avenue and 8th Avenue
• Free shuttle buses operate in three sections:
1. Between Broadway Junction and Myrtle-Wyckoff Avs.
2. Between Myrtle-Wyckoff Avs and Lorimer Street-Metropolitan Avenue (G)
3. Between Lorimer Street-Metropolitan Ave (G) and Marcy Ave (J, M)

Note: Manhattan-bound customers may transfer to the A, C or J train at Broadway Junction or the M at Myrtle-Wyckoff Avs or Marcy Ave.

From 6 a.m. to 12 midnight, Saturday, March 3 and from 8 a.m. to 11 p.m., Sunday, March 4, M service is extended to the 57th Street (F) station due to L suspension.

From 12:01 a.m. Saturday, March 3 to 5 a.m. Monday, March 5, uptown N trains skip Prince, 8th, 23rd and 28th Sts. due to rail repairs.

From 7 a.m. to 9 p.m., Saturday, March 3 and from 9 a.m. to 7 p.m. Sunday, March 4, service is extended to Ditmars Blvd. due to work on the 7 line.

From 6:30 a.m. to 12 midnight, Saturday, March 3 and Sunday, March 4, uptown R trains skip Prince, 8th, 23rd and 28th Sts. due to rail repairs.

From 11 p.m. Friday, March 2 to 4:45 a.m., Monday, March 5, A trains replace the S shuttle between Broad Channel and Rockaway Park due to due to track panel installation between Beach 67th and Beach 60th Streets. Free shuttle buses replace A service between Beach 90th Street and Far Rockaway.

(42nd Street Shuttle)
From 12:01 a.m. to 6 a.m., Saturday, March 3, Sunday, March 4 and Monday, March 5, 42nd Street operates all night, every 10 minutes, due to the 7 line suspension between Queens and Manhattan.

The MTA has a full slate of weekend work planned for the next few days, but for the technologically-dependent among us, the worse news concerns the countdown clocks. For 12 full hours, from 7 a.m. to 7 p.m. on Saturday, the countdown clocks along the East and West Side IRT lines will be off. Transit says the temporary outage is due to “system maintenance on the Automatic Train Supervision system.” The clock themselves will not be touched, and they’ll go back on tomorrow evening.

This temporary move makes me laugh a bit. I’ve become so accustomed to riding on lines with the countdown clocks that I find myself far more impatient during waits on B Division platforms. Tomorrow, we go back to staring into dark tunnels awaiting the next train.

Meanwhile, it’s Friday, and you know what that means. Subway Weekender has the map.

From 12:01 a.m. to 6:30 a.m., Sunday, February 26 and from 12:01 a.m. to 5 a.m. Monday, February 27, uptown 4 trains run express from Brooklyn Bridge to 14th Street-Union Square due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection and station painting at Astor Place and Spring Street.

From 12:01 a.m. Sunday, February 26 to 5 a.m. Monday, February 27, downtown 4 trains run local from 125th to Grand Central-42nd Street due to station time signal enhancements.

From 8 a.m. to 10 p.m., Sunday, February 26, downtown 5 trains run local from 125th Street to Grand Central-42nd Street due to station time signal enhancements.

From 12:01 a.m. Sunday, February 26 to 5 a.m. Monday, February 27, uptown 6 trains run express from Brooklyn Bridge to 14th Street-Union Square due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection and station painting at Astor Place and Spring Street.

From 12:01 a.m. Saturday, February 25 to 5 a.m. Monday, February 27, there are no 7 trains between Times Square-42nd Street and Queensboro Plaza due to track panel installation and CBTC work south of Queensboro Plaza, ADA work at Court Square and station renewal at Hunters Point Avenue. Customers should take the N, R, E or F between Manhattan and Queens. Free shuttle buses operate between Vernon Blvd-Jackson Avenue and Queensboro Plaza. In Manhattan, the 42nd Street shuttle (S) operates overnight. (Repeats next five weekends through March 31-Apr 2.)

From 12:01 a.m. Saturday, February 25 to 5 a.m. Monday, February 27, A trains run local in both directions between 145th Street and 168th Street and from 6:30 a.m. to 11 p.m., Saturday, February 25, and Sunday, February 26, there is no C train service between 145th Street and 168th Street due to track maintenance. Customers should take the A instead.

From 12:01 a.m. Saturday, February 25 to 5 a.m. Monday, February 27, Brooklyn-bound D trains run via the N line from 36th Street to Coney Island-Stillwell Avenue due to station and line structure rehabilitation near 9th Avenue. Note: Free transfers are available at New Utrecht Avenue-62nd Street with MetroCards. This out-of-system transfer at street level via New Utrecht Avenue is available until May 2012. Look for instructions on station signs.

From 12:01 a.m. Saturday, February 25 to 5 a.m. Monday, February 27, there is no L train service between Broadway Junction and 8th Avenue due to signal removal. The M train, M14 bus and free shuttle buses provide alternate service.

• M service is extended to the 57th Street F station.
• Customers may take to M14 bus between 1st Avenue and 8th Avenue.
• Free shuttle bus operates in three sections:
1. Between Broadway Junction and Myrtle-Wyckoff Avs.
2. Between Myrtle-Wyckoff Avs and Lorimer Street-Metropolitan Avenue (G)
3. Between Lorimer Street-Metropolitan Ave (G) and Marcy Ave (J, M)

Note: Manhattan-bound customers may transfer to the A, C or J train at Broadway Junction or the M at Myrtle-Wyckoff Avs or Marcy Ave.

From 6 a.m. to 12 midnight, Saturday, February 25 and from 8 a.m. to 11 p.m., Sunday, February 26, M service is extended to the 57th Street (F) station due to L suspension.

From 7 a.m. to 9 p.m., Saturday, February 25, and from 9:30 a.m. to 7 p.m., Sunday, February 26, some N trains operate between Ditmars Blvd and 34fh Street-Herald Square due to track panel installation and CBTC work south of Queensboro Plaza, ADA work at Court Square and station renewal at Hunters Point Avenue.

From 12:01 a.m. Saturday, February 25 to 5 a.m. Monday, February 27, N trains stop at DeKalb Avenue in both directions all weekend in order to provide a transfer to and from Q trains.

From 12:01 a.m. Saturday, February 25 to 5 a.m. Monday, February 27, there is no Q train service between 57th Street-7th Avenue and DeKalb Avenue. Q trains will operate to and from Whitehall Street on the R line. Customers may take the N between 57th Street-7th Avenue and DeKalb Avenue or the R between 57th Street-7th Avenue and Whitehall Street.

(42nd Street Shuttle)
From 12:01 a.m. to 6 a.m., Saturday, February 25, Sunday, February 26 and Monday, February 27, 42nd Street operates overnight due to the 7 line suspension between Queens and Manhattan.

The FASTRACK express heads to 6th Ave. on Monday night, and Transit has laid out the week’s service closures. From 10 p.m.-5 a.m. each night beginning on the evening of Monday, February 27 and ending in the morning on Friday, March 2, there will be no service along 6th Ave. between 57th St. and West 4th St. in both directions. Here’s how service will operate instead:

• D trains are rerouted and operate in two sections:
• D trains will operate between 205th Street and 59th Street-Columbus Circle, then via the C line between 59th Street-Columbus Circle and West 4th Street, then via the F line between West 4th Street and 2nd Avenue, the last stop.
• D trains will operate between Coney Island-Stillwell Avenue and 36th Street in Brooklyn, then via the R line between 36th Street and Whitehall Street in Lower Manhattan, the last stop.
• F trains operate via the E line between Roosevelt Avenue and West 4th Street in both directions. For service to Lexington Avenue/63rd Street, Roosevelt Island and 21st Street-Queensbridge, customers should take the Q. Q service will be extended to 21st Street-Queensbridge via the F line after 57th Street-7th Avenue.
• Manhattan-bound B and M service in Brooklyn and Queens ends at 9:30 p.m. Service in Manhattan is available until 10 p.m.
• Free Shuttle buses provide connecting service between the Grand Street D station and both the Canal Street N/Q/R/6 and Broadway-Lafayette D/F stations.

With the various routes along 6th Ave. branching off to numerous locales both north and south of Manhattan’s so-called Central Business District, this is a tricky FASTRACK to run, but things seem to make sense. F trains will run via the E until West 4th St. before heading into Brooklyn, but any D trips from Manhattan to Brooklyn require a pair of transfers. I’d say anyone needing a D train late at night next week is better off finding a different route if possible.

It’s a three-day weekend for many folks, and the MTA is taking advantage of the long weekend to tack on some extra hours of work. Take note how many of this weekend’s diversions extend until 5 a.m. on Tuesday. Thus, there is no Q service, for instance, on Monday, and there is no uptown 6 local service until Tuesday. As always, Subway Weekender has the map.

From 12:01 a.m. to 6:30 a.m., Saturday, February 18, Sunday, February 19 and Monday, February 20 and from 12:01 a.m. to 5 a.m. Tuesday, February 21, uptown 4 trains run express from Brooklyn Bridge to 14th Street-Union Square due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection and station painting at Astor Place and Spring Street.

From 12:01 a.m. Saturday, February 18 to 5 a.m. Tuesday, February 21, there are no 5 trains between East 180th Street and Bowling Green due to work on the East 180th Street Interlocking. For service between East 180th Street and 149th Street-Grand Concourse, customers should take the 2 instead. For service between 149th Street-Grand Concourse and Bowling Green, customers should take the 4 instead. Note: 5 shuttle trains run every 30 minutes between East 180th Street and Dyre Avenue until 5 a.m. Monday.

From 10 p.m. Friday, February 17 to 5 a.m. Tuesday, February 21, uptown 6 trains run express from Brooklyn Bridge to 14th Street-Union Square due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection and station painting at Astor Place and Spring Street.

From 12:01 a.m. Saturday, February 18 to 5 a.m. Monday, February 20, Manhattan-bound 6 trains run express from Hunts Point Avenue to 138th Street-3rd Avenue due to station maintenance at Cypress Avenue, East 143rd Street, East 149th Street and Longwood Avenue.

From 12:01 a.m. Saturday, February 18 to 5 a.m. Tuesday, February 21, there are no 7 trains between Times Square-42nd Street and Queensboro Plaza due to track panel installation and CBTC work south of Queensboro Plaza, ADA work at Court Square and station renewal at Hunters Point Avenue. Customers should take the N, R, E or F between Manhattan and Queens. Free shuttle buses operate between Vernon Blvd-Jackson Avenue and Queensboro Plaza. In Manhattan, the 42nd Street shuttle (S) operates overnight. (Repeats next six weekends through March 31-Apr 2.)

From 12:01 a.m. Saturday, February 18 to 5 a.m. Tuesday, February 21, uptown A trains run via the F line from Jay Street-MetroTech to West 4th Street, then local to 59th Street due to track maintenance north of Jay Street-MetroTech.

From 12:01 a.m. Saturday, February 18 to 5 a.m. Tuesday, February 21, A trains run local in both directions between 145th Street and 168th Street and from 6:30 a.m. to 11 p.m., Saturday, February 18, Sunday, February 19 and Monday, February 20, there is no C train service between 145th Street and 168th Street due to track maintenance. Customers should take the A instead.

From 6:30 a.m. to 11 p.m., Saturday, February 18, Sunday, February 19, and Monday, February 20, downtown C trains skip 50th, 23rd and Spring Streets due to electrical and substation work at Jay Street-MetroTech.

From 6:30 a.m. to 11 p.m., Saturday, February 18, Sunday, February 19, and Monday, February 20, uptown C trains run on the F line from Jay Street-MetroTech to West 4th Street due to track maintenance north of Jay Street-MetroTech.

From 12:01 a.m. Saturday, February 18 to 5 a.m. Monday, February 20, Bronx-bound D trains run via the N line from Coney Island-Stillwell Avenue to 36th Street in Brooklyn due to station and line structure rehabilitation near 9th Avenue. Note: Free transfers are available at New Utrecht Avenue-62nd Street with MetroCards. This out-of-system transfer at street level via new Utrecht Avenue is available until May 2012. Look for instructions on station signs.

From 12:01 a.m. Saturday, February 18 to 5 a.m. Tuesday, February 21, D service operates in two sections due to track maintenance north of Bedford Park Boulevard:

• Between Coney Island-Stillwell Avenue and Bedford Park Blvd.
• Between Bedford Park Blvd. and 205th Street

From 12:01 a.m. Saturday, February 18 to 5 a.m. Tuesday, February 21, Brooklyn-bound F trains run via the A line from West 4th Street to Jay Street-MetroTech due to electrical and substation work at Jay Street-MetroTech.

From 10 p.m. Friday, February 17 to 5 a.m. Tuesday, February 21, Queens-bound F trains run via the M line from 47th-50th Sts. to Queens Plaza due to station work at Lexington Avenue-63rd Street for the Second Avenue Subway Project.

From 4 a.m. Saturday, February 18 to 10 p.m. Monday, February 20, Queens-bound J trains skip Kosciuszko Street, Gates Avenue, Halsey Street and Chauncey Street, due to track panel installation at Halsey Street and Gates Avenue.

From 7 a.m. to 9 p.m., Saturday, February 18, from 9:30 a.m. to 7 p.m., Sunday, February 19, and from 7 a.m. to 9 p.m. Monday, February 20, some downtown N trains terminate at 34th Street-Herald Square skipping 49th Street due to track panel installation and CBTC work south of Queensboro Plaza, ADA work at Court Square and station renewal at Hunters Point Avenue.

From 12:01 a.m. Saturday, February 18 to 5 a.m. Tuesday, February 21, N trains stop at DeKalb Avenue in both directions all weekend due to track work at Atlantic Avenue.

From 12:01 a.m. Saturday, February 18 to 5 a.m. Tuesday, February 21, there is no Q train service between 57th Street-7th Avenue and Prospect Park due to track replacement at Atlantic Avenue. Customers may take the N or R between 57th Street-7th Avenue and Atlantic Avenue-Pacific Street. Free shuttle buses are available between Atlantic Avenue-Pacific Street and Prospect Park.

(42nd Street Shuttle)
From 12:01 a.m. to 6 a.m. Saturday, February 18, Sunday, February 19, Monday, February 20 and Tuesday, February 21, the 42nd Street shuttle operates overnight due to the 7 line suspension between Queens and Manhattan.

It might snow! One to three inches! Therefore, most weekend work is canceled. Here are the remaining service changes. Stay warm.

From 11 p.m. Friday, February 10 to 5 a.m. Monday, February 13, uptown 1 trains run express from Chambers Street to 14th Street due to rail and tie renewal at Houston Street and track replacement south of 14th Street.

From 12:01 a.m. to 6:30 a.m., Saturday, February 11 and Sunday, February 12 and from 12:01 a.m. to 5 a.m. Monday, February 13, uptown 2 trains run express from Chambers Street to 14th Street due to rail and tie renewal at Houston Street and track replacement south of 14th Street.

From 12:01 a.m. Saturday, February 11 to 5 a.m. Monday, February 13, there are no 7 trains between Times Square-42nd Street and Queensboro Plaza due to track panel installation and CBTC work south of Queensboro Plaza, ADA work at Court Square and station renewal at Hunters Point Avenue. Customers should take the N, R, E or F between Manhattan and Queens. Free shuttle buses operate between Vernon Blvd-Jackson Avenue and Queensboro Plaza. In Manhattan, the 42nd Street shuttle (S) operates overnight. From 7 a.m. to 9 p.m. Saturday, February 11 and from 9 a.m. to 7 p.m. Sunday, February 12, Q service is extended to/from Ditmars Blvd. due to the 7 line suspension. (Repeats next seven weekends through March 31-Apr 2.)

From 12:01 a.m. Saturday, February 11 to 5 a.m. Monday, February 13, there are no L trains between Lorimer Street and Broadway Junction due to CBTC signal work. Free shuttle buses provide alternate service between Lorimer Street and Broadway Junction, making all station stops.

From 7 a.m. to 9 p.m. Saturday, February 11 and from 9 a.m. to 7 p.m. Sunday, February 12, Q service is extended to/from Ditmars Blvd. due to the 7 line suspension.

(42nd Street Shuttle)
From 12:01 a.m. to 6 a.m. Saturday, February 11, Sunday, February 12 and Monday, February 13, the 42nd Street shuttle operates overnight due to the 7 line suspension.

An end-of-week announcement for Monday before jumping into the service advisories: Jarret Walker, the voice behind Human Transit, will be in town on Monday to give a talk related to his new book. He’ll be speaking at the CUNY Graduate Center from 3 p.m. to 5 p.m., and his talk is entitled “Human Transit: How Clearer Thinking about Public Transit Can Enrich Our Communities and Our Lives.” For more info and to RSVP, check out this page.

On that note, it’s Friday, and thus, service advisory time. Subway Weekender has the map.

From 4 a.m. Saturday, February 4 to 10 p.m. Sunday, February 5, downtown 2 trains operate express from East 180th Street to 3rd Avenue-149th Street due to track panel installation at East 180th Street.

From 6 a.m. to 10 p.m., Saturday, February 4 and from 8 a.m. to 10 p.m., Sunday, February 5, downtown 5 trains run express from East 180th Street to 3rd Avenue-149th Street due to track panel installation at East 180th Street. Note: Trains run every 20 minutes during this time.

From 12:01 a.m. Saturday, February 4 to 5 a.m. Monday, February 6, there are no 7 trains between Times Square-42nd Street and Queensboro Plaza due to track panel installation and CBTC work south of Queensboro Plaza, ADA work at Court Square and station renewal at Hunters Point Avenue. (Repeats next eight weekends through March 31-Apr 2.)

From 12:01 a.m. Saturday, February 4 to 5 a.m. Monday, February 6, uptown A trains run via the F line from Jay Street-MetroTech to West 4th Street, then local to 59th Street and from 6:30 a.m. to 11 p.m., Saturday, February 4 and Sunday, February 5, uptown C trains run via the F line from Jay Street-MetroTech to West 4th Street due to electrical and substation work at Jay Street-MetroTech.

From 12:01 a.m. Saturday, February 4 to 5 a.m. Monday, February 6, A trains run local in both directions between 145th Street and 168th Street and from 6:30 a.m. to 11 p.m., Saturday, February 4 and Sunday, February 5, there is no C train service between 145th Street and 168th Street due to track maintenance. Customers should take the A instead.

From 12:01 a.m. Saturday, February 4 to 5 a.m. Monday, February 6, there is no D train service between Pacific Street and 34th Street-Herald Square due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection. F, N and Q trains and free shuttle buses provide alternate service. D trains operate in two sections:

• Between 205th Street and 34th Street-Herald Square
• Between Pacific Street and Coney Island-Stillwell Avenue

Free shuttle buses operate between Grand Street and West 4th Street, stopping at Broadway-Lafayette Street.

From 11 p.m. Friday, February 3 to 5 a.m. Monday, February 6, Brooklyn-bound F trains run via the M line after 36th Street in Queens to 47th-50th Sts in Manhattan due to station work at Lexington Avenue-63rd Street for the Second Avenue Subway Project.

From 4 a.m. Saturday, February 4 to 10 p.m. Sunday, February 5, Queens-bound J trains skip Kosciuszko Street, Gates Avenue, Halsey Street and Chauncey Street due to track panel installation at Halsey Street and Gates Avenue.

From 6:30 a.m. to 12 midnight, Saturday, February 4 and Sunday, February, 5, N trains run local in both directions between DeKalb Avenue and 59th Street in Brooklyn due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection.

From 12:01 a.m. to 6:30 a.m., Saturday, February 4 and Sunday, February 5, and from 12:01 a.m. to 5 a.m. Monday, February 6, Brooklyn-bound N trains run via the Manhattan Bridge from Canal Street to DeKalb Avenue due to station painting at City Hall. (Note: N trains stop at DeKalb Avenue in both directions all weekend.)

From 7 a.m. to 9 p.m., Saturday, February 4 and from 9 a.m. to 7 p.m. Sunday, February 5, Q service is extended to Ditmars Blvd. due to the 7 line suspension.

From 6:30 a.m. to midnight, Saturday, February 4 and Sunday, February 5, Brooklyn-bound R trains run via the Manhattan Bridge from Canal Street to DeKalb Avenue due to station painting at City Hall. Customers should use nearby 4 stations instead.

From 12:01 a.m. to 6:30 a.m., Saturday, February 4 and Sunday, February 5 and from 12:01 a.m. to 5 a.m. Monday, February 6, there are no R trains between 59th Street and 36th Street in Brooklyn due to work on the Broadway/Lafayette-to-Bleecker Street transfer connection. Customers should take the N instead.

(42nd Street Shuttle)
From 12:01 a.m. to 6 a.m. Saturday, February 4, Sunday, February 5 and Monday, February 6, the 42nd Street shuttle operates overnight due to the 7 line suspension.