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Liam Blank

Carry passengers through Penn Station.

By Liam Blank · Updated

For a New Jersey rider heading to a job in Queens, Penn is a transfer along the way. Commuter trains end their passenger trips there, even when a train continues empty to a yard. Through-running lets a train stop at Penn and carry passengers onward. The rebuilding decision is which journeys to connect—and what station and timetable will make those trips reliable.

Explore the track connectionsSources
Penn between the Hudson and the Queens railwayA north-up geographic view of Penn, the North River and East River corridors, West Side Yard in Manhattan, and Sunnyside Yard and Harold Interlocking in Queens. Existing railway geography; main corridor lines generalized.NEW JERSEYMANHATTANQUEENSPenn StationWest Side YardLIRR · ManhattanSunnyside YardAmtrak / NJ TRANSITHaroldInterlockingHell Gate routeLIRR routes to Long Island →Hudson RiverEast RiverNorth River TunnelsEast River Tunnels · four linesN ↑Penn between the Hudson and the Queens railwayA north-up geographic view of Penn, the North River and East River corridors, West Side Yard in Manhattan, and Sunnyside Yard and Harold Interlocking in Queens. Existing railway geography; main corridor lines generalized.MANHATTANQUEENSPenn StationNew JerseyWest Side YardEast RiverHudsonRiverSunnysideYardHaroldInterlockingRegional routes continue beyond the map.Yard branches are shown dashed.N ↑
Read from west to east: trains from New Jersey cross under the Hudson to Penn, then reach Queens under the East River. Yards store and service trains; they are not passenger destinations. Main corridor lines are generalized. Map © OpenStreetMap contributors. 14

Choose the service the station must support.

Penn is the rail hub beneath Midtown Manhattan, between New Jersey to the west and Queens and Long Island to the east. NJ Transit serves New Jersey; the Long Island Rail Road (LIRR) serves Long Island. Amtrak carries intercity passengers through Penn, including on routes linking Boston and Washington. 1

Some NJ Transit trains already continue empty through Penn to Sunnyside Yard in Queens. Those movements demonstrate a physical path across the station. Turning that path into a commuter passenger service requires an onward destination and a timetable riders can use. The Federal Railroad Administration’s (FRA) study baseline records the yard movements and zero commuter passenger through trains. 1

Amtrak’s June 2026 rebuilding agreement includes at least limited regional through-running and public engagement during design in 2026–27. Riders and residents asked to support the project need to know which routes it will offer before permanent track and platform choices are fixed. 3

Trace the railway through the station.

An onward train needs a platform track it can reach from both sides of Penn. The drawing below answers that first physical question. An interlocking is a controlled set of switches connecting tracks; Penn’s 21 platform tracks have different routes through them. Tracks 5–19 reach both rivers and have overhead wire and third rail, the two ways trains receive electric power inside Penn. 1

Compare the eastern tunnel pairs to see how the choice of route changes the available platform tracks.

Penn tracks and their river connectionsTracks 1–19 reach the Hudson through A Interlocking. Tracks 14–21 reach East River Lines 3 and 4 through C; Tracks 5–17 reach Lines 1 and 2 through JO. Tracks 5–19 reach both rivers. This graph shows physical access, not a dispatch plan or capacity.Penn Station · river connections by platform trackWEST / NEW JERSEYPLATFORMSEAST / QUEENS212019181716151413121110987654321Platform 11Platform 10Platform 9Platform 8Platform 7Platform 6Platform 5Platform 4Platform 3Platform 2Platform 1North RiverTunnels · two tracksA InterlockingLines 3 & 4C InterlockingLines 1 & 2JO InterlockingEast RiverTunnels15 tracks connect to both riversTracks 5–19 all have overhead wire and third rail.21 platform tracks · 11 platformsTrack 18 serves two platform faces.Connection graph: river-access ranges retained; turnout locations, yard leads and Empire Connection omitted.Penn tracks and their river connectionsTracks 1–19 reach the Hudson through A Interlocking. Tracks 14–21 reach East River Lines 3 and 4 through C; Tracks 5–17 reach Lines 1 and 2 through JO. Tracks 5–19 reach both rivers. This graph shows physical access, not a dispatch plan or capacity.Trace a track across PennHUDSONPENNEASTLines 3 & 4Lines 1 & 2212019181716151413121110987654321Tracks 5–19 connect to bothriver approaches.Access ranges; simultaneouscapacity requires an operating test.

Both river approaches

Fifteen platform tracks feed a smaller set of river tunnels. A through timetable has to fit trains through those approaches as well as clear the platform.

Penn tracks and their river connectionsTracks 1–19 reach the Hudson through A Interlocking. Tracks 14–21 reach East River Lines 3 and 4 through C; Tracks 5–17 reach Lines 1 and 2 through JO. Tracks 5–19 reach both rivers. This graph shows physical access, not a dispatch plan or capacity.Penn Station · river connections by platform trackWEST / NEW JERSEYPLATFORMSEAST / QUEENS212019181716151413121110987654321Platform 11Platform 10Platform 9Platform 8Platform 7Platform 6Platform 5Platform 4Platform 3Platform 2Platform 1North RiverTunnels · two tracksA InterlockingLines 3 & 4C InterlockingLines 1 & 2JO InterlockingEast RiverTunnels15 tracks connect to both riversTracks 5–19 all have overhead wire and third rail.21 platform tracks · 11 platformsTrack 18 serves two platform faces.Connection graph: river-access ranges retained; turnout locations, yard leads and Empire Connection omitted.Penn tracks and their river connectionsTracks 1–19 reach the Hudson through A Interlocking. Tracks 14–21 reach East River Lines 3 and 4 through C; Tracks 5–17 reach Lines 1 and 2 through JO. Tracks 5–19 reach both rivers. This graph shows physical access, not a dispatch plan or capacity.Trace a track across PennHUDSONPENNEASTLines 3 & 4Lines 1 & 2212019181716151413121110987654321Tracks 5–19 connect to bothriver approaches.Access ranges; simultaneouscapacity requires an operating test.

Via JO Interlocking

A route using East River Lines 1 and 2 can reach Tracks 5–17. Those choices must fit around other trains using the same junction and tunnels.

Penn tracks and their river connectionsTracks 1–19 reach the Hudson through A Interlocking. Tracks 14–21 reach East River Lines 3 and 4 through C; Tracks 5–17 reach Lines 1 and 2 through JO. Tracks 5–19 reach both rivers. This graph shows physical access, not a dispatch plan or capacity.Penn Station · river connections by platform trackWEST / NEW JERSEYPLATFORMSEAST / QUEENS212019181716151413121110987654321Platform 11Platform 10Platform 9Platform 8Platform 7Platform 6Platform 5Platform 4Platform 3Platform 2Platform 1North RiverTunnels · two tracksA InterlockingLines 3 & 4C InterlockingLines 1 & 2JO InterlockingEast RiverTunnels15 tracks connect to both riversTracks 5–19 all have overhead wire and third rail.21 platform tracks · 11 platformsTrack 18 serves two platform faces.Connection graph: river-access ranges retained; turnout locations, yard leads and Empire Connection omitted.Penn tracks and their river connectionsTracks 1–19 reach the Hudson through A Interlocking. Tracks 14–21 reach East River Lines 3 and 4 through C; Tracks 5–17 reach Lines 1 and 2 through JO. Tracks 5–19 reach both rivers. This graph shows physical access, not a dispatch plan or capacity.Trace a track across PennHUDSONPENNEASTLines 3 & 4Lines 1 & 2212019181716151413121110987654321Tracks 5–19 connect to bothriver approaches.Access ranges; simultaneouscapacity requires an operating test.

Via C Interlocking

Tracks 14–19 reach the Hudson and East River Lines 3 and 4. Tracks 20–21 also reach that eastern pair, but have no Hudson connection.

Highlighting shows where a train can go. Trains using the same switches can still compete for a path. FRA §2.1.4 and Figure 3 supply the access ranges and platform pairings. 1

Make room for the next arrival.

A train at the platform occupies a track another arrival needs. A turning train unloads, prepares for its next trip and reverses direction. A through train leaves forward after exchanging passengers. A shorter stop can create room for another arrival when the approaches are clear and people can board safely.

An NJ Transit train and an LIRR train on opposite sides of a Penn Station platform, with columns and equipment between them.
NJ Transit and LIRR trains share a platform. Columns and equipment occupy part of its width. Photograph uploaded in 2022 by Bonnachoven, CC0.

Time at the platform

“Dwell” is a train’s time at the platform. FRA reproduces these minimum scheduling standards:

22 minutesNJ Transit turn
Alight → prepare → board → recovery
12 minutesPassenger through stop
Exchange passengers → depart

Tri-Venture Council standards, last revised December 2013, reproduced by FRA. These are scheduling standards, not observed average stops. FRA’s tested plans assume further reductions. 1

The service plan has to allow people to board comfortably and the next train to arrive on time.

The timetable has to work beyond Penn.

A direct ride also joins two lines’ punctuality. Beyond the East River tunnels, Harold Interlocking connects routes through Queens with Sunnyside Yard and the lines beyond. A train waiting for another movement at a junction can reach Penn late, then carry that delay into the next part of its passenger journey.

New York’s Metropolitan Transportation Authority (MTA) uses grade-separated routes in its Harold program: crossing train paths pass at different heights, like roads at an interchange. This reduces conflicts between trains using the tunnels, yard and onward lines. 4

Test the timetable across the entire planned passenger route, including the far end where the train turns back. The comparison must show how late arrivals at one end affect departures and passengers at the other.

What the federal tests tell us.

FRA is testing how the station and its surrounding railway can carry more trains. Its first phase compares two operating concepts—packages of station changes, train movements and future approach infrastructure. Concept 1 includes up to four commuter through trains per hour in each direction. 1

A capacity result tells readers how many trains fit under stated assumptions. A route map shows who gains an onward ride. Read them together, then check whether filling the timetable makes delays better or worse. That is how an increase in train count becomes a claim passengers can assess.

Federal operating tests · peak-direction trains through the Hudson tunnels
Operating conceptStation strategyTest result
Concept 1Extend Platforms 1–3 west; improve circulation and clear obstructions.Up to 32 trains an hour toward Manhattan in the morning; 30 away in the evening. Assumes future approaches and reduced stops at platforms.
Concept 2Wider central platforms and more integrated train flows.A timetable for 32 trains an hour did not pass the initial simulation when arrival times varied and yard movements became congested.

FRA Phase I, June 2026. Concept 1 at 32 trains produced slightly worse delays than the baseline; 30 produced slightly better delays. Concept 2 is due for further testing. 1

Ask to see the passenger service plan.

FRA’s wider study, due in 2028, covers the railway, trains and service management. Its comparisons should use the same infrastructure and reliability assumptions for terminating and through services. 2

If you ride these trains or are asked to support Penn’s rebuilding, start with a journey you need to make, out and home. Ask the rail agencies where a through train would take you, when it would run and how it would recover from a late arrival. In comments on station designs or discussions about funding, use the published route map, all-day timetable and delay results to judge the proposal against that journey.

Sources and drawing notes
  1. FRA, Penn Station Service Optimization Study, Phase I, June 2026. §2.1.4 / Figure 3: tracks, platforms and river access; §2.3.1: dwell standards; Table 4: baseline traffic; §4.3 and §5: concepts, simulation and infrastructure assumptions.
  2. FRA study overview, current program scope and Phase II timing.
  3. Amtrak, pre-development agreement announcement, June 22, 2026. Includes limited regional through-running in the announced transformation.
  4. MTA Capital Program Committee, July 2024, integrated projects update, printed pages 12–13. Harold route relationships and grade-separation program; the page does not assert that every project element is complete.

The corridor map uses OpenStreetMap cartography and railway geometry with generalized highlighted centerlines. The track explorer is a connectivity graph derived from FRA access ranges; it omits individual turnouts.