Reproducibility archive for "The Braking-Energy Effect of Freeway Lane Expansion Can Reverse Across Synthetic Driver Populations: A Prospectively Predicted SUMO/EIDM Study"

Complete reproducibility archive for a two-study preregistered microsimulation experiment testing whether the braking-energy effect of a four-to-five-lane freeway expansion can be predicted in advance from a fleet's string-stability characteristics. Contains: both preregistration texts; all six freeze records with per-file SHA-256 hash manifests; OpenTimestamps proof files, upgraded to Bitcoin attestations, with verification instructions; the complete source tree (population generation, the braking-energy operator, the capacity operator, the transition and decision scripts, the figure generator); the frozen 152-point candidate universe; run manifests with per-run seeds; per-file seals of all raw outputs; the derived analysis artifacts; the 642-record literature corpus and its search protocol; the post-outcome predictor search; an F0-versus-Study-2 protocol-difference table; and MANIFEST.txt, giving a SHA-256 for every deposited file.The raw run directories themselves (1,973 runs, 592 MB) are not included; the deposited manifests account for every run and record its configuration and seed, and the seal lists give each raw output's digest.