Moving Operations, Published Live
Striping, sweeping, mowing, crack-sealing — work zones that travel down the road at walking speed, invisible to every planning-based system and crowdsourced map. DTCD is built to publish them.
The Most Dangerous Work Zone Is the One That Moves
A static lane closure appears on 511 because someone planned it. A striping crew doesn't — it appears around a curve at 8 mph with a truck-mounted attenuator between the crew and traffic. No planning system can publish what changes minute by minute. A crew-carried app can.
How It Works
Standards-Native
Mobile operations publish through the same CWZ 1.0 / WZDx feeds as static closures — typed, machine-readable, and listed in the USDOT Work Zone Data Feed Registry. If your platform consumes work-zone data, moving operations arrive in the schema you already parse.
How DTCD Maps to 23 CFR 630 — Subparts J & K
DTCD's role across the rule is to document, monitor, and publish — it produces the evidentiary record each provision leans on. It doesn't place devices, supply barriers or attenuators, train workers, or make the compliance determination; those stay with the contractor and agency.
| What the rule calls for | Cite | How DTCD supports it |
|---|---|---|
| Subpart J — Work Zone Safety & Mobility | ||
| Work-zone impact monitoring | §630.1008, .1014 | Produces the contemporaneous, GPS- and time-stamped daily diary and day/night inspection log that is the monitoring record. |
| Trained personnel, on record | §630.1008 | Captures each crew member's traffic-control certification (TCS / flagger), tracks renewal dates, and ties the certified worker to the closure they worked — the trained-personnel record the rule asks for, and the roster that stands behind the workers-present signal DTCD publishes to its CWZ feed. |
| Biennial process review | §630.1008 | Every closure is retrievable on demand behind a tamper-evident audit trail, so a reviewer can pull a project's full history without a paper chase. |
| TMP — Temporary Traffic Control | §630.1012 | Documents the devices actually deployed against the plan and MUTCD typical application. |
| TMP — Public InformationOnly DTCD | §630.1012 | Turns the same field capture into a live, published WZDx / CWZ feed on the USDOT registry that 511 systems, mapping partners, and navigation apps source from — the work zone reaches the map in real time, automatically. |
| Subpart K — Temporary Traffic Control Devices | ||
| Device condition & placement | §630.1108, .1110 | Per-device photo capture; on-device AI flags missing, damaged, or misplaced signs and channelizing devices. |
| Positive protection deployed | §630.1108 | Documents that barrier, crash cushion, or attenuator was in place, and flags when positive protection appears absent for exposed workers. DTCD records and monitors; it does not supply the hardware. |
| Mobile operations & the shadow vehicleOnly DTCD | §630.1108 | Moving Operations captures the traveling work zone live — position, projected route, workers present — that no planning-based system can see, and produces the record that the shadow vehicle / TMA was trailing the crew. This is how you document the mobile-operation protection Subpart K calls for. |
| Worker exposure control | §630.1108 | Opt-in worker-presence pings record who was on foot inside the zone, and when. |
| Flagging & law-enforcement measures | §630.1108 | Documents flagger stations and checks for the STOP/SLOW paddle and advance flagger warning (W20-7). |
| Device maintenance | §630.1110 | The inspect-and-correct trail records each deficiency found and the re-check that closed it out. |
| Related federal rule | ||
| Worker high-visibility apparel | 23 CFR 634 | AI photo analysis flags any worker in frame without visible ANSI/ISEA 107 high-visibility apparel. |
DTCD supports compliance with these provisions by producing and maintaining the required records and the standards-based data feed; it does not replace trained personnel, temporary-traffic-control device placement, or positive protection. General information, not legal advice — confirm requirements with the contracting agency. See the full write-up in The 2026 Work-Zone Documentation Deadline.