DTCD

DTCD

Digital Traffic Control Diary
For Traffic Control Contractors

Stop Doing
Paperwork.
Start Getting
Paid.

DTCD replaces clipboards, separate apps, and hours assembling PDFs — with one app your crews already know how to use.

Built for contractors. Useful to DOTs. Ready for real-time work zone data.

Traffic Control Contractors Striping & Mowing Crews Inspection Services
Auto-Capture Sign Detection
Auto-Capture
Lock Screen Countdown
Lock Screen
Closure Map
Closure Map
Mobile Work Zone
Mobile Work
Invoice
Auto Invoice
The Requirement Already Exists

Every State DOT Already Requires the Same Thing

A 50-state review confirmed that every state DOT requires a daily traffic-control record. The names differ — diary, daily inspection report, work-zone checklist, device record, project diary, logbook, daily work report — but the requirement is the same.

DTCD generates the right output for your state automatically. Tap any state below to see its specific form.

50-state DOT traffic control documentation coverage
Coverage confirmed — click for state spec Iowa Regulatory Exclusion (see ToS)
View 50-State Coverage → Request Brief
How It Works
1

Drive Through

AI-assisted MUTCD sign detection during drive-through capture, where safe and appropriate. Designed for daytime and low-light use. Decision-support only — verify all output.

2

App Does The Rest

GPS, lane config and closure type auto-fill from sign detection.

3

Instant PDF Diary

Map, photos, hours & entries generated in seconds. Submit or invoice.

Key Features

Auto-Capture Sign Detection

AI-assisted MUTCD sign detection during drive-through capture. Decision-support only — verify all output.

Lock Screen Countdown

Live timer on lock screen & Dynamic Island.

GPS-Tagged Photos

Every photo GPS-stamped, timestamped & cloud-synced.

Personnel & Cert Tracking

Hours auto-calculated. ATSSA, IMSA, OSHA expiry alerts.

WZDx 4.2 & CWZ 1.0 Compliant

Public data feed available · API endpoints on request · Customization options.

Mobile Work Zone Tracking

Live WZDx feed moves with striping & mowing crews.

PDF Diary Generation

Road-snapped map, GPS photos, logs & daily entries — instant PDF.

Multi-Format Export

WZDx, KML, and invoice-ready data — one tap from any closure.

Auto-Generated Invoice

Line items from closure data — no spreadsheets, no double-entry.

AI Safety Alerts

Photos analyzed for non-compliant setups — alerts sent to DOT.

📣

Agency Messaging

Two-way communication with DOT inspectors built into every closure. Send and receive messages from the field — no phone tag, no email chains.

WZDx v4.2
Auto-Feed
MUTCD
Signs
AASHTO
DOT Aligned
PDF/A
Archival
KML 2.2
Google Earth
ISO 8601
Timestamps
PurposeBuilt Systems
Right tool. Right now.
dtcd.purposebuilt.systems App Store · Google Play · WebFree 14-day trial · $9.99/mo
Iowa Regulatory Exclusion (Form 105023): PurposeBuilt Systems' apps are not authorized for use by Iowa DOT or Iowa-regulated contractors. Whether your organization falls within the excluded class is determined by the Iowa Ethics & Campaign Disclosure Board or Iowa DOT, not by PurposeBuilt — contact those agencies directly before installing or subscribing. See Terms.
Contact
The Integrated Suite

Two Apps.
One Workflow.

DTCD and DRU aren't just two products — they're a connected system. Every utility install links to its live work zone. Permits flow between both apps. One data model, two specialized tools working together on the same job site.

DTCD
Traffic Control
↔ Live Data Sync
DRU
ROW Utilities
01

Linked Permits

Every utility install in DRU links to a live work zone in DTCD. Open permits from either app — data stays in sync.

02

Shared Asset Registry

Features captured in DRU surface in DTCD when planning traffic control. One source of truth across both apps.

03

Unified Compliance

Export coordinated PDF packages combining traffic diaries and ASCE 75-22 as-builts for single-submission projects.

From Field to Feed

From Daily Diary to Real-Time Work Zone Data

Real-time work zone data starts with what happens in the field. DTCD captures closure type, location, lane impacts, start and end times, photos, inspections, deficiencies, and corrections in one structured workflow. The diary becomes the data source.

That same record can support WZDx-style feeds, 511 systems, work zone dashboards, traffic management centers, navigation providers, connected vehicle applications, corridor-level coordination, and AI-assisted safety review.

WZDx v4.2
Work Zone Data Exchange feeds for navigation + 511
CWZ v1.0
ITE/AASHTO/NEMA Connected Work Zone standard
CIFS
Closure & Incident feed for Waze, Google Maps
DATEX II
European traffic data exchange standard
Get Paid Faster

Reduce Traffic-Control Quantity Disputes

Traffic-control pay items are difficult to verify after the fact. Memory fades. Photos get lost. Spreadsheets disagree. DTCD documents — automatically, contemporaneously, with GPS and timestamps:

✓ What devices were installed
✓ Where they were placed
✓ When they were installed
✓ How long they were deployed
✓ Whether they were inspected
✓ Whether deficiencies were corrected
✓ Which records support payment
✓ Who approved the setup

Timestamped, GPS-tagged, photo-supported records help contractors and owners resolve questions in minutes — not weeks.

Two Audiences. One Tool.

Built for Contractors. Useful to DOTs.

For Contractors
  • → Faster daily documentation
  • → GPS-tagged photos
  • → Auto-generated PDF diaries
  • → Quantity and invoice support
  • → Better records for disputes and claims
  • → Proof of setup, inspection, removal
For DOTs & Agencies
  • → Consistent traffic-control documentation
  • → Closure setup quality review
  • → Digital inspection records
  • → Work zone dashboard data
  • → WZDx and 511 readiness
  • → Nighttime work zone safety support
  • → Payment and quantity verification
For Agencies →
Field to Plan, Plan to Field

Improve Closure Setup Quality

DTCD helps document whether the traffic-control setup in the field matches the plan. Capture and review:

• Advance warning signs
• PCMS boards
• Arrow boards
• Drums and channelizers
• Tapers
• Buffer spaces
• Attenuators
• Temporary barrier
• Flagging stations
• Lane closure limits

Optional AI-assisted review can flag potential setup issues from field photos — decision-support only, not a compliance determination. Users must independently verify all AI-assisted output.

Spec-Binding Coverage

13 States With Verified Daily TC Documentation Specs

DTCD’s 50-state compliance analysis classifies every state DOT into four tiers based on the strength of their daily traffic-control documentation requirements. 13 states have verified contract-binding spec language requiring the contractor to perform daily TC documentation; 8 more are likely-binding pending PDF page verification. Every claim is anchored to a specific spec citation, federal CFR section, or documented DTCD capability.

Arkansas Delaware Florida Iowa Kentucky Louisiana Maryland Mississippi Ohio Oregon Texas Washington Wyoming
Read the full 50-state analysis →
FHWA Alignment

Aligned With FHWA Every Day Counts (EDC-8)

PurposeBuilt’s field-grade apps turn site documentation into structured, usable infrastructure data — directly supporting several FHWA EDC-8 priorities (2026–2027 cycle). DTCD covers the work-zone tracks; DRU (Digital ROW Utilities) covers the subsurface-utility track:

Nighttime Work Zone Safety

Digital photos, timestamps, inspections, deficiency tracking, and corrective-action records document nighttime setups when visibility, risk, and documentation challenges are highest.

Connected Corridors

Field-level closure and traffic-control data supports WZDx, 511, dashboards, traffic management centers, and multi-state corridor visibility.

Integrated Digital Project Delivery

Traffic-control diaries, inspections, photos, device records, and payment support become part of the digital project record.

Beyond Bid-Build

Alternative delivery (DB, CMGC, P3) requires defensible field-condition records. DTCD provides the digital evidence.

Subsurface Utility Engineering (SUE) · DRU

Digital ROW Utilities (DRU) captures field-grade SUE Quality Level data — locator marks, potholing, GPR readings, locator confidence, and as-built positions — the digital evidence EDC-8’s SUE track is asking owners and contractors to put in the project record.

Roadmap
UAS 2.0 · DTCD + DRU

Drone-captured deliverables become first-class inputs across the portfolio: DTCD aerial-orthomosaic overlay (drop a georeferenced drone image over a closure map for as-deployed work-zone visualization) and DRU drone-DXF import (planned-vs-as-built ROW + utility geometry from aerial photogrammetry). Targets EDC-8’s UAS 2.0 track for innovative infrastructure management.

Sources & Standards

Primary Research & Industry Standards

Coverage and compliance claims on this page are backed by primary state-DOT, federal, and industry sources.

50-State Coverage Map →
Per-state spec citations with primary-source links to every state DOT
FHWA EDC-8 ↗
Federal Highway Administration Every Day Counts Round 8 priorities
WZDx Specification ↗
USDOT Work Zone Data Exchange specification
ITE/AASHTO/NEMA CWZ v1.0 ↗
Connected Work Zone industry standard
Sample DTCD PDF Diary ↓
Example output (the actual file your inspector receives)
Download 50-State Brief (PDF) ↓
Federal/AASHTO-audience one-pager
DRU

DIGITAL ROW UTILITIES

Digital Right-of-Way Utilities · iOS · Free
ASCE 75-22 Compliant WFS — 230+ Sources AI Detection AR View LiDAR Depth
For Utility Contractors, Agencies & Municipalities

Capture.
Certify.
Export.
From The Field.

DRU replaces paper cert logs, disconnected GIS apps, and hours of manual data entry — with one app your field crews already know how to use.

Utility Contractors DOT Inspectors GIS / Asset Mgmt Utility Engineers
AI Detect 100%
AI-Assisted Detection
Permit Work Area
Permit Work Area
AR Visualization
AR Underground
11 Export Formats
11 Export Formats
How It Works
1

Capture Assets

Walk the site. Tap to log. AI detects hydrants & infrastructure in real time.

2

Certify In Field

ASCE 75-22 attributes auto-filled. Scan cert tags with OCR in seconds.

3

Export & Submit

11 formats: GeoJSON, KMZ, DXF, ASCE 75-22 JSON, PDF Report & more.

Key Features

Point & Linear Capture

GPS trace for full pipe runs with method auto-logged.

AI Asset Detection

AI-assisted detection of hydrants, manholes, and valves. Decision-support only — verify all output.

Material Cert OCR

Scan cert tags — material, diameter, wall thickness auto-fill instantly.

AR Visualization

Overlay WFS utilities in live camera, color-coded by utility domain.

ASCE 75-22 Certified

All Table 2-4 mandatory attributes, Quality Levels A–D auto-calc.

LiDAR Depth Measurement

LiDAR-assisted depth capture on supported iPhone Pro models. Field results vary; verify against your project's accuracy requirements.

11 Export Formats

GeoJSON, CSV, KML, KMZ, DXF, PDF Report, ASCE 75-22 JSON & more.

AES-GCM Encryption

Military-grade encryption option for sensitive infrastructure data.

SHA-256 Audit Trail

Cryptographic integrity verification generated per export session.

GNSS / RTK Support

External GNSS receivers and RTK centimeter accuracy (beta).

WFS Catalog

230+ nationwide utility data sources — Electric, Gas, Water, Telecom.

18 State CORS Networks

Iowa IaRTN and 17 other networks pre-loaded for GPS accuracy.

🔗

DTCD Integration

Links every utility install to a live work zone via Digital Traffic Control Diary. DRU alerts you when no work zone is linked — open DTCD directly from the app.

ASCE 75-22
Certified
WGS84
Geographic
GeoJSON
Export
GNSS_SBAS
Positioning
RTK
Centimeter
SHA-256
Audit Trail
PurposeBuilt Systems, LLC
Right tool. Right now.
purposebuilt.systems Free on iOS App Store
Iowa Regulatory Exclusion (Form 105023): PurposeBuilt Systems' apps are not authorized for use by Iowa DOT or Iowa-regulated contractors. Whether your organization falls within the excluded class is determined by the Iowa Ethics & Campaign Disclosure Board or Iowa DOT, not by PurposeBuilt — contact those agencies directly before installing. See Terms.
Contact
See It In Action

iOS. Android. Web Dashboard.

Field demos and feature walkthroughs from the PurposeBuilt Systems YouTube channel.

iOS App Demo

Quick walkthrough of DTCD in the field — Shorts format.

Web Dashboard

Agency-level visibility into every work zone, asset, and export.

Android App Demo

Same power, Android — built native in Kotlin, not a wrapper.

Resources

Download training materials and sample outputs.

📖
DTCD Training Manual
Complete 15-chapter guide · PDF
📘
DRU Training Manual
Digital ROW Utilities field guide · PDF
📋
Sample Closure Diary
Auto-generated PDF with map + photos
📑
50-State Compliance Analysis
Verified spec citations · 13 Tier-A states · 23 CFR mapping
💰
Sample Invoice
Auto-generated from closure data
Credentials
SBA-Certified SDVOSB SBA SDVOSB Certified
USDOT WZDx Registry — Listed
WZDx v4.2 & CIFS
ASCE 75-22 Compliant
Provisional Patent
Clive, Iowa

Let's Build
Something Useful.

Whether you're a traffic control contractor, a utility crew in the field, or a government agency exploring transportation technology — we'd love to talk.

matthew@purposebuilt.systems 515.451.9635