About this site
The physical mechanics of American highways, bridges, and traffic corridors, built from instrumented DOT field tests, federal bridge and crash inventories, and active construction ledgers.
Every episode published on YouTube (@MilePointIndex) has a companion field dossier on this site featuring high-resolution engineering schematics, redrawn telemetry charts, primary source links, and a classroom & seminar discussion guide.
Each Case File & Field Briefing has four parts: 01 // The Incident & Corridor Baseline, 02 // The Forensics, 03 // The Interrogation, and 04 // The Evidence Locker. The 01 summary is free on every episode page.
Public Dispatch (free): the weekly documentary and email alerts when new corridor investigations drop. Solo Investigator ($9 a month or $79 a year): full personal access to every Case File & Field Briefing. Department / Classroom License ($299 a year): every Case File, with rights to print, distribute, and project them for up to 100 students or team members, plus an itemized PDF tax invoice for school or corporate P-Card reimbursement.