This post is the fifth in a series focused on examining the top investment needs of the Northeast Corridor. While earlier posts looked at general needs on the corridor, including priority investments and state of good repair, we are now looking at specific infrastructure investments. Our last post focused on the 140-year-old tunnels in Baltimore, and the series' final post, below, examines the critical capacity issues between New Jersey and Manhattan under the Hudson River.
»Increased capacity between New Jersey and Manhattan is essential for the continued growth of the NEC. With several proposals on the table, important questions of capacity, control, and political support must be answered before we can choose the best alternative.

Without new investments, the NEC will operate at 100% capacity in every major city by the year 2030. There is no question that we must invest in additional capacity for future demand. However, limited capacity is not just a problem for the future. The problem of too many trains and too few tracks already causes problems for one of the most congested stretches of the NEC: the set of tunnels beneath the Hudson River between New York and New Jersey.
Trans-Hudson Tunnels
View Trans-Hudson Tunnels in a larger map
The Trans-Hudson Challenge
Currently, two tunnels - one tube with an inbound track and one tube with an outbound track - carry trains on the NEC from the eastern edge of the New Jersey Meadowlands to Midtown Manhattan. Completed in 1910, the tunnels' creators used construction methods that would be considered crude today. As two teams worked their way from either side of the Hudson River, lacking GPS and other modern surveying tools, merely a cable strung underground from shore to shore ensured that they would meet in the middle. Workers, known as "sand hogs," used animals to cart out excavated materials. Known officially as the North River Tunnels (invoking an older designation for the lower portion of the Hudson), the tunnels are a major bottleneck on the NEC.
Despite their age, the Trans-Hudson tunnels are probably the most crucial link on the entire NEC. Thanks to growing demand for commuter and intercity service, they are currently operating at 100% capacity during peak hours. Technically speaking, the tunnels are part of a larger, two-track bottleneck that extends from Newark, NJ, to NY Penn Station, which also includes the Portal Bridge (named for its location just west of the portal to the Trans-Hudson Tunnels). Every weekday, the Trans-Hudson Tunnels and nearby tracks support 359 NJ Transit (NJT) and 100 Amtrak trains, including a remarkable 24-25 trains per hour in each direction during peak travel times.

Such high traffic poses problems for both NJT and Amtrak. With just two tracks, trains must run one after the other with as little space in between as safely possible. When something goes wrong in the tunnel (an all too frequent occurrence), like a stalled train or a power problem, delays cascade throughout the intercity and commuter systems on the NEC. According to an analysis by Infrastructurist (see above), a five minute delay can affect up to 10,000 riders. A small derailment in early August, for example, caused delays as far away as Washington and Boston and delayed NJT commuters for almost two days. But the bigger problem is demand. Both operators would like to run additional train service, but simply have no room. Not only does limited capacity constrain current service, but it makes it nearly impossible to meet future demand on the NEC. By 2030, NJT expects commuter ridership to double.
Interestingly, additional Trans-Hudson capacity was not actually included in the Phase 1 Priority Investments outlined by the NEC Master Plan (PDF). When the Plan was published in May 2010, the now-canceled ARC project was still in the works and about to break ground. The ARC project, led by NJT, was going to add two new, single-track rail tunnels under the Hudson River. Operationally, ARC would have provided Amtrak with capacity for four additional trains and NJT with capacity for 25 additional trains during the peak hour.
Proposed Solutions
In the wake of ARC's cancelation in October 2010, different stakeholders in the Northeast have proposed a number of different solutions to the trans-Hudson question. In general, none of these proposals are new. Some were already being developed for the future and were rushed forward. Others had been on drawing boards in the past, only to be taken off the shelf once ARC was terminated.
Gateway Project
In February 2010, Amtrak announced the Gateway Project, which would specifically address the whole NEC bottleneck in northern New Jersey. With an estimated cost of $13 billion, Gateway would add two single-track tunnels under the Hudson (like ARC), replace the Portal Bridge with a new, three-track span, and add two new tracks between Newark and New Jersey. Unlike ARC, which had trains ending in a station eleven stories below 34th street, the Gateway proposal calls for trains to serve an expanded Penn Station, just below street level, between 30th and 31st Streets. (The current Penn Station extends from 31st to 34th Street.)

In its February announcements, Amtrak did not make clear enough that the Gateway Project is not meant to replace ARC, but to supplement it. In fact, the infrastructure included in Gateway is actually a part of Amtrak's Vision for High-Speed Rail on the NEC (PDF), introduced in September 2010 (before ARC was even canceled). In March 2011, Amtrak's application federal high-speed rail funding, included a $188 million request to begin engineering and environmental review of the project, which went un-funded.
As part of Amtrak's plans for future growth, Gateway is focused more heavily on expanding intercity services than supporting commuter rail. During the peak, Gateway would add eight Amtrak trains (for a total of 12) and 13 NJT trains (for a total of 34). In contrast, ARC would have added four and 21, respectively. Since true HSR service will rely on additional NEC infrastructure, it is unclear what role Gateway would play in this service and how true HSR would impact commuter service.
MTA 7-Train Extension
In November 2010, New York City announced plans to study the extension of the 7-train from the west side of Manhattan to Secaucus, NJ. Right now, the city is already funding the line's extension within Manhattan, from 42nd Street and 8th Avenue, to 34th Street and 11th Avenue. The new capacity is meant to serve the development of the far west side, where developers are planning office and residential development over the Hudson Yards (land currently occupied by rail yards and former industrial space).

By serving Secaucus, NJ, the 7-Train would enable NJT customers to transfer from commuter trains to the subway before crossing the Hudson River. According to the Tri-State Transportation Campaign's (TSTC) Mobilizing the Region blog, the project may also include a bus transfer, taking pressure off of trans-Hudson bus services (see below). The appeal of the 7-train extension is that it would provide access to Grand Central Terminal and the east side of Manhattan, home to a significant number of jobs but more removed from west-side location of Penn Station.
Optimistic projections peg the project's cost as low as $5 billion, since expensive tunneling in Manhattan would already be complete as part of existing projects, but ridership projections remain anyone's guess. In February 2011, the city hired an independent firm to initiate a study of the extension. According to Mobilizing the Region, insiders suggest that the results of the study have been pushed back.
Bus Expansion
A third proposal that is on the table is to make improvements to the trans-Hudson bus infrastructure. In general, trans-Hudson bus proposals are usually not discussed in the same conversation as trains, but they have the potential to provide big increases in capacity at potentially far less cost than a major rail investment. Right now, bus riders already outweigh rail commuters. While approximately 300,000 commuters ride the bus across the three Hudson crossings (the Lincoln and Holland Tunnels and the George Washington Bridge), only about 70,000 commuters take the train to Penn Station and approximately 90,000 riders utilize PATH trains between New York and New Jersey.
A number of solutions have been proposed to increase trans-Hudson bus capacity. For example, the Port Authority is planning a new garage for buses in Manhattan, which would allow buses to skip the slow trip they must take to enter the city to collect passengers during the evening rush. In 2009, the Tri-State Transportation Campaign released a report (PDF) advocating for the introduction of a west-bound express bus lane (XBL) during the evening, to complement the eastbound XBL that provides a dedicated lane for buses during the morning rush. Another proposal has called for adding a high-occupancy toll lane, also in the Eastbound direction, to provide additional capacity for buses during the morning rush. Finally, as mentioned above, NYC is also considering a bus transfer station in its study of the 7-train extension, which could free up more space for in the Lincoln tunnel by directing bus passengers to the new subway link.
Picking the Right Project
With different proposals on the table, the question is: which one to choose? Of course, you'll get a different answer depending on whom you ask. Amtrak obviously supports its Gateway project; the real estate developers of the Manhattan's far West Side have been interested the 7-train extension; the Port Authority of New York and New Jersey is already planning some bus improvements; etc. When we take a more objective approach to assessing these proposals, several key questions rise to the surface:
1. Additional Capacity For Whom?
Right now, the trans-Hudson bottleneck is an issue that affects two primary markets: commuters between New York and New Jersey and intercity passengers along the NEC traveling through Manhattan. With public dollars so limited, the challenge is to figure out how to provide more capacity capacity for both.
At first glance, this question might seem easy; only the Gateway proposal serves both intercity passengers and rail commuters. But this is misleading. The 7-Train extension, for example, could hypothetically carry enough existing rail commuters that NJT could actually reduce service to Penn Station, which would effectively provide more capacity for Amtrak trains.
And yet, even if a new tunnel like Gateway is the answer, then which market deserves more capacity? On the one hand, it would seem that commuter rail riders vastly outnumber intercity passengers. Every year, approximately 58 million commuters use the current Trans-Hudson Tunnels, compared to just 1.5 million Amtrak riders. On the other hand, Amtrak riders are generally traveling significantly longer distances (as measured in passenger-miles) and paying much higher fares. There is no obvious solution to how new capacity should be distributed among these two ridership markets.
2. Local Growth or Regional Development?
The question of capacity inevitably leads to a bigger question: what are our goals for economic development and growth at the local, regional and megeregional level?
Different kinds of capacity can affect development in different ways. On the local level, increased commuter capacity can improve local communities in New Jersey, by reducing automobile congestion, promoting transit-oriented development, and curbing sprawl. On the regional level, increased commuter capacity is essential for economic growth, by connecting the fast-growing labor market west of the Hudson to the high-paying jobs in Manhattan. Finally, with respect to the larger Northeast Megaregion (from Maine to Virginia), increased intercity capacity is essential for the Northeast economy, which, by some estimates, loses $30 billion a year in productivity as a result of automobile and air travel delays. The information and innovation-based industries that are powering our growth rely on a dependable and rapid transportation system.
3. Who Should Run the Service?
Currently, the New York City metropolitan area is served by three public transit agencies, numerous private bus and ferry operators, and Amtrak. Traditionally, transit services are defined by regional boundaries. NJT serves communities west of the Hudson River, MTA operates in New York State (with services contracted to Connecticut), and the Port Authority operates services that cross state lines.
The chosen project will have to respect these arrangements or, at the very least, be able to resolve the obstacles inherent in crossing state lines. Consider the 7-Train extension, which could pose serious political risks for the leadership at MTA. As a state-level agency, the MTA is funded by New York and not New Jersey. The extension to Secaucus would for the first time bring the NYC Subway to another state. While this would be good news for New Jersey residents (who could potentially fund the service in special ways), New Yorkers might reject any move that they see directing New York's resources to New Jersey.
The other issue is, which agency will actually want it? The MTA is already experiencing severe constraints in both its operating and capital budgets. And back in November, MTA chairman Jay Walder expressed surprise at the city's proposal. As for the Port Authority, the agency has shown no real interest in initiating a major new rail service and is also fighting to raise money for its own capital budget. Under Governor Christie's administration, the state of New Jersey has proven an unreliable partner for major investments and in 2010 cut subsidies to NJT, forcing the largest fare increase in the agency's history.
4. Who Will Support It?
The 2010 cancelation of ARC was a reminder that the trans-Hudson issue is rife with political and institutional obstacles. Since the trans-Hudson dilemma is a question for the entire New York City metropolitan area, the institutional and political framework makes progress difficult to achieve. In addition to the various transit agencies mentioned above, the region is controlled by three separate governors, the mayor of NYC, and local municipal leaders that are seemingly countless (particularly in New Jersey, which is home to more municipalities than the entire state of California). It is incredibly difficult to get all of these many stakeholders on board for a single project and, as Governor Christie recently demonstrated, it only takes one major defector to bring down a project of regional significance.
Conclusion
With so many proposals on the table, now is the time for a serious evaluation of the trans-Hudson issue. The questions about capacity, economic objectives, control, and political support must be addressed first, before we can identify the best option for relieving the trans-Hudson bottleneck.
What we do know is that we must act soon. Virtually every leader in the New York City metropolitan area recognizes that we need additional transportation capacity between New York and New Jersey. Not only is the current, century-old system failing to meet our current needs, it will be woefully inadequate for the projected growth in travel demand and could place major constraints on the economic potential of the New York metropolitan area and the larger Northeast Megaregion.
Images
North River Tunnels Portal: NJ Transit.
ARC Tunnel Graphic: The Infrastructurist.
Gateway Project: Amtrak.
7-Train Extension: Wall Street Journal.
Chris Christie: Wikimedia Commons.