Northern New England Intercity Rail Initiative : Boston, Springfield, New Haven, Montreal : alternative analysis report
Bibliographic record
Abstract
The Northern New England Intercity Rail Initiative (NNEIRI) examines the implementation and operation of more frequent and higher speed intercity passenger rail service along the NNEIRI Corridor.The Corridor is made up of two overlapping routes, one that connects the cities of Boston, Massachusetts and New Haven, Connecticut via Springfield, Massachusetts, and one that connects the cities of Boston, Massachusetts and Montreal, Quebec via Springfield, Massachusetts.This Alternatives Analysis Report presents the process and data used to develop three Build Alternatives and a single No Build Alternative.At the beginning of the process, 18 rail service options were developed with ranges of speed, frequency, and equipment.These options were analyzed to assess impacts on ridership and train performance.Documentation of the initial option screening is included the Preliminary Service Options and Performance chapter.Data from the analysis was then used to determine the three Build Alternatives and one No Build Alternative that would be further analyzed in the Alternatives Analysis process.The Build Alternatives include potential service, speed and equipment improvements that will provide a range of preliminary costs, ridership, and travel times between Corridor locations.The No-Build Alternative was developed based on data from existing and proposed projects that are expected to be in service regardless of NNEIRI implementation.The four alternatives include:No Build Alternative: Assumes no NNEIRI service on the Corridor.This Alternative is the base case against which each of the Build Alternatives are measured.This Alternative includes existing and anticipated transportation improvements in the NNEIRI Corridor area, including improved New Haven-Hartford-Springfield rail service, Springfield Union Station improvements, Boston South Station expansion, extension of the Amtrak Vermonter to Montreal, and improvements to the Montreal-area rail network.Alternative 1 -Corridor Service: Improved speeds up to 60 mph, where operations are currently slower, and new passenger service providing six daily departures from Boston, three from Montreal, and 5 from New Haven.Initial capital cost, including infrastructure upgrades and equipment purchases is expected to be $615-785 million.Ridership on Alternative 1 is expected to be 597,000 passengers annually and the service is expected to require $24million in operating funding.Alternative 2 -Corridor Service with Speed Improvements: Improved speeds up to 79 mph, where operations are currently slower, and new passenger service providing 11 daily departures from Boston, 5 departures from Montreal, and 11 from New Haven.Initial capital costs are expected to be $1.062-1.350billion.Ridership is expected to be 1,052,500 annually and the service is expected to need $76 million in annual operating funding.Alternative 3 -Corridor Service with Speed and Equipment Improvements: Improved speeds up to 90 mph, where operations are currently slower, utilization of tilting train equipment, and new passenger service providing 16 daily departures from Boston, 5 from Montreal, and 11 from New Haven.Alternative 3 is notable for the inclusion of 5 additional shuttle trains between Boston and Springfield to provide increase connectivity between city pairs in the Boston to Springfield segment.Capital costs in Alternative 3 are expected to cost $1.255i Executive Summary 1.590 billion.Ridership is expected to be 1,170,700 annual riders and $88 million in operating funding will be required each year.Additionally, an environmental analysis for all three Build Alternatives was completed and compared with the No Build Alternative.The screening analyzed major environmental issues, including natural resources, human environment, land use, construction impacts, and historical implications.The analysis found that impacts along the Corridor are anticipated to be generally minor and moderate with some increased in impacts in specific locations due to operations and infrastructure needs, however no impacts are anticipated to be significant.The three Build Alternatives provide significantly different levels of cost, ridership, and required operating funding on the Corridor.Subsequent to the Alternative Analysis Report, a Recommend Alternative will be developed.The Recommend Alternative will be either one of the Build Alternatives or a compilation of the portions of the three alternatives that are most feasible and beneficial and will be determined based on public input, stakeholder input, and final determination of the project management team.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.003 | 0.007 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.004 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.087 | 0.011 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".