I am writing to provide a few insights on the Interborough Express (IBX) proposal from a long-time Brooklynite and NYC Transit rider, who has written over 40 articles about the IBX, which are posted at
http://bqrail.substack.com.
While I differ on many of the details of the proposals by the MTA and its consultants, the proposal as a whole is being addressed in a politically effective way and has a very good chance of being fully funded proceeding to completion.
I also share the view of many that transit construction costs in the United States, and New York City in particular, have gotten out of hand. See generally, the NYU Marron Institute Transit Costs Project report here, their IBX study comments here, and a recent article in Vital City, here.
Ridership - Most importantly, practically the entire IBX line will have heavy use. The MTA’s ridership predictions have focused on travel within Brooklyn and Queens, a politically savvy move. The predictions have been conservative, which is consistent with US DOT’s apparent fear of over-projections.
In the January 2022 Interim Report, the MTA predicted 88K daily riders for the light rail mode. The MTA said then, “If built, the IBX would see higher daily ridership than nearly any new transit line built in the U.S. over the last two decades.” The most recent MTA ridership prediction I have obtained is 118.7K weekday riders. That is approaching the average weekday riderships of the much longer BART and Philadelphia subway systems (both ~140K). Many New Yorkers, have predicted much higher IBX ridership.
Non-residents may not recognize the potential demand for this line, which is indicated by several studies and the comments on the MTA’s IBX project page. New York City subways typically have had substantial non-work ridership. The NYU Tandon Institute recently predicted IBX ridership would be 254K. See generally here and here.
Build the Entire IBX Line – Some comments have suggested that there is little need for portions of the proposed IBX line, and that they could built later if needed. Respectfully, I disagree. It appears likely that funding can be obtained soon for building the entire line. Postponing construction of one section risks the future unavailability of funding and the likely greater future cost. Many opportunities exist for housing and business development along the IBX line, which will only proceed when construction is assured.
Bridges - One comment has suggested that replacement of many bridges is unnecessary. There are unspoken reasons why bridge replacements are included in the IBX project. The bridges are 50-100 years old. It is better to replace them before transit is operating on the right-of-way every few minutes. Also, the state and federal government will pay a significant share of the costs if they are included in the IBX plan. The fact that the MTA proposes to make the bridges a bit longer than some people might consider necessary should not have a significant effect on the project costs.
Light Rail – There are many reasons why light rail vehicles (LRVs) are not a good choice for the IBX line. They are compromise vehicles designed to permit street-running, which is not a good idea for the IBX line either. They will cost more to buy and maintain than NYC Transit A Division railcars, used on the numbered lines. See several articles about light rail here.
Street-Running- One comment suggests a street-running loop to provide a better connection at the Roosevelt Avenue terminus of the IBX line. I too have been critical of the gap between the proposed IBX station and the nearby subway stations. One of the planners involved in the original studies, which led to the 2022 IBX Interim Report, has told me that a great amount of time was spent in study of that connection. Street running in that already congested area was rejected and rightly so. See here, here and here. A street-running route would also preclude ever adopting driverless operation on the line. See here.
Catenary or Third Rail – Use of a high voltage catenary, rather than a much lower voltage third rail, requires fewer power stations and has the advantage of less obstacles to freight tracks crossing transit tracks. However, a catenary is more easily damaged and may place a height limitation on freight trains. I understand from the IBX consultants’ progress reports that the MTA and its consultants are considering both alternatives.
Freight Track & Transit Platform Locations – A comment suggests that the freight track(s) be centrally located in the right-of way, with transit tracks on either side and transit side platforms at every station. That would require freight trains to cross transit tracks to access every siding, the LIRR Bushwick Branch and the LIRR main line. Stations with two side platforms would be more expensive to construct and maintain than those with a single central platforms, for example, because of the need for more platform area, and more stairs, elevators and (hopefully) escalators.
Broadway Junction & East New York Tunnel – I share concerns about the MTA IBX PEL Report’s proposal for a station south of Atlantic Avenue and none at Broadway Junction. See here and here. However, the proposal for a platform in the tunnel above the existing jet fuel pipeline probably would not satisfy fire safety regulations. It appears that the pipeline could be moved. See here
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Fortunately, it appears that the MTA and its consultants are now considering locating a station in the East New York Tunnel, north of Atlantic Avenue, closer to Broadway Junction. See here.
Metropolitan Avenue (All Faiths Cemetery) Tunnel - I share commenters’ concerns about the old Metropolitan Avenue/All Faiths Cemetery Tunnel proposal, see articles here, but I disagree with the proposed solution of widening it on either side. The good news is that it appears the MTA and its consultants are considering alternatives at the cemetery. See here. It should also be remembered that this section of the Right-of-Way is the Freemont Secondary, owned by CSX Transportation.