From Here to There: Regional Rail for Metro New York
Designing the “Tri-State Solution”—a policy and technical framework to transform the region’s fragmented commuter railroads into a unified, metro-style through-running network.
Middle Zone Reconstruction
The estimated capital cost to completely reconstruct just the middle zone of the Platform Level was approximately $2.7 billion to $3 billion in 2020 dollars.
Once Phase I is operational, two tracks and one platform can be removed in the central zone of the station, making room for 5 wide platforms and 10 through-tracks for Amtrak, LIRR, NJ Transit, and future Metro-North service. This reconstruction would involve:
- Demolition and replacement of all concrete-embedded tracks.
- Modification of the interlockings on either side of the station.
- Reconstruction of the original network of utility tunnels beneath the tracks.
- Extensive relocation of structural columns supporting Penn Station and MSG.
- Replacement of all stairs, escalators, and elevators with modern, wider vertical circulation.
Projected Performance:
- Wide platforms allow simultaneous boarding and detraining, with pre-announced platform assignments.
- Average through-running dwell time reduced to approximately 6 minutes (from current 7–15+ minute averages).
- Projected 65% capacity increase in addition to the capacity gained from Phase I.
- Crossing conflicts eliminated through dedicated through-running operations in the central zone.
| 2020 Estimate (Class 5) | $2.7 – $3 Billion |
| 2026 Adjusted (40% escalation) | $3.8 – $4.2 Billion |
Phase II would begin after Phase I (Alt 12 + 14) is completed and operational. This phased approach allows capacity relief from Phase I before the disruptive middle zone reconstruction. The FRA’s Service Optimization Study (Oct 2025–Summer 2027) is expected to evaluate these track and platform configurations independently.
Alternative 12: New Platform A
Alternative 12 is a complex infrastructure project that entails significant structural and civil engineering work due to its location beneath existing rail lines and buildings. The Tri-State plan acknowledged spatial limitations beneath 31st Street and proposed acquiring the necessary space on the northern half of Block 780, between 7th and 8th Avenues, to construct two additional tracks and a platform—a critical distinction from the consultant’s later analysis, which modeled only one track.
Key Work:
- Building a new platform and track alignment beneath 31st Street and Block 780.
- Excavating deep shafts down to the rock level in stages.
- Drilling micropiles into the rock to support existing building columns.
- Decommissioning existing Track 1 is part of the process.
- New connections to the North River Tunnel for turnback service from Platforms 1 and 2.
| 2020 Base Cost (excl. escalation) | $679,948,107 |
| 2020 Estimate (with escalation) | $766,981,464 |
| 2026 Adjusted (40% construction inflation) | ~$1.07 Billion |
Note: Base figures from NJ Transit’s PCIP Report (January 2020). 2026 adjustment reflects ~40% construction cost inflation (ENR/Turner indices) from 2020 to 2026. The project is designed to preserve as much of Block 780 as possible while providing the operational flexibility needed for Phase II construction.
Alternative 14: Platform Extensions
Alternative 14 primarily involves extending the physical length of the existing Platforms 1 and 2 to accommodate longer, 12-car trains. Additionally, the expansion allows for all platforms to be accessed from the West End Concourse.
Key Work:
- Platform and Track Extension: Physically extending Platforms 1 and 2 westward to increase seat capacity per train.
- 8th Avenue Subway Underpinning: Managing interference with existing transit infrastructure running beneath 8th Avenue.
- West End Concourse Access: New connections enabling all platforms to be reached from the West End Concourse.
- Tunnel Connections: New connections to the North River Tunnel for turnback service.
| 2020 Base Cost (excl. escalation) | $231,476,245 |
| 2020 Estimate (with escalation) | $251,846,154 |
| 2026 Adjusted (40% construction inflation) | ~$353 Million |
Note: Base figures from NJ Transit’s PCIP Report (January 2020). 2026 adjustment reflects ~40% construction cost inflation (ENR/Turner indices) from 2020 to 2026. Combined with Alternative 12, these Phase I investments provide the operational capacity needed to maintain service during Phase II middle zone reconstruction.