Parametric Railway Line Capacity Modeling

Amendment 2 is issued to complete the responses to contractors and correct the reference to Attachment J-4 on page 27 of the solicitation. The reference should have been to Attachment J-5. Amendment 1 is issued to modify the solicitation in accordance with the attached documents. Please note that the submission date for the Performance Work Statement, i.e., Volume III, has been changed to March 23, 2026. Please contact me if there are any

questions. This is a combined for commercial products or commercial services prepared in accordance with the format in subpart 12.6, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; quotes are being requested and a separate written solicitation will not be issued. The solicitation number is 693JJ626Q000005 and being issued as full and open competition. This notice and the incorporated provisions and clauses are those in affect through the Federal Acquisition Circular FAC 2025-06. Clauses and Provisions are available in full text at www.acquisition.gov. All responsible sources may submit a quote. North American Industry System (NAICS) Code: 541330, Engineering Services, Small business size standard $25,500,000 Eligible business size: All Competition: Full and Open Competition Product and Service Code (PSC): AS12, Transportation and R&D services: Surface Transportation, Public Transit, and Rail FAR Provisions/Clauses: 52.212-1, 52.212-2, and 52.212-4 apply to this procurement. For full text and wording visit www.acquisition.gov. The Government contemplates an award of a single Firm Fixed Price (FFP) purchase order/contract resulting from this solicitation. Contract Line Item (CLIN): To be developed by awardee in their response to the Statement of

Objectives (SOO) See Attachment 1 Statement of

Objectives.

Objective: This effort will result in a railroad parametric capacity model that will be validated based on “real world” operations data. Description of Requirement: Description: The U.S. Department of Transportation (DOT), Federal Railroad Administration (FRA) anticipates awarding a Firm Fixed Price type contract for the development of a new Parametric Railway Line Capacity Model (PRLCM). FRA believes that a new parametric capacity model would have the potential to serve as an important adjunct to existing railroad operations simulation tools and could find application in high-level operations analysis that is performed as part of early project feasibility studies, regional intercity passenger rail planning, and as an aid in developing hypotheses for operating and infrastructure changes for subsequent evaluation using operations simulation. This effort will result in a validated, reproducible Railroad Parametric Capacity Model (RPCM), associated documentation, and code that the Government can independently develop. (The full description is to be found on pages 1-2 of Attachment J.1 Statement of

Objective (SOO).). Place of delivery and FOB point Federal Railroad Administration 1200 New Jersey Avenue, SE, Washington. DC 20590 Clauses and Provisions 52.212-1