What this is
Traffic Safety Wiki is a US-only reference site: a plain-English encyclopedia of traffic-safety compliance. The rules that govern a lane closure, an accessible parking lot, a work zone, or a valet operation are real and enforceable, but they live in dense primary sources that are hard to find and harder to read. We collect those sources, pull out the discrete requirements, and write them in language a working professional can act on, with the citation attached to every fact.
Who it serves
The people who answer for compliance are rarely the people who wrote the standards. We build this for the businesses and staff who hold that responsibility on the ground:
- Contractors and construction crews setting up temporary traffic control.
- Facility and property managers responsible for accessible parking and site access.
- Municipalities and utilities working in the public right-of-way.
- Valet operators, event organizers, and crowd-control planners.
Why it exists
When something goes wrong in a work zone or a parking lot, the liability lands on the business, not on the manual. The answers are scattered across the MUTCD, the ADA Standards, OSHA regulations, 23 CFR, state statutes, and state DOT plans, each written for a different reader and updated on its own schedule. We take a specific question, such as what a given job requires in a given state, and answer it with a cited, dated record instead of a stack of PDFs.
Every published fact traces back to primary law, carries a verbatim quote and the exact section, and shows when it was last verified. You can read more about how we verify each requirement, or browse by scenario to see the approach in practice. Questions or corrections are welcome through contact.
Informational only, not legal advice. Always confirm against the current edition of each standard and your state manual.