In-House Product

Emergency Vehicle Alert

See It Before You Hear It

Emergency Vehicle Alert gives drivers real-time warnings when ambulances, fire trucks, or police units are approaching nearby. React sooner, yield safely, and help first responders move through traffic faster when every second counts.

Learn more in our LinkedIn article: A Siren You Can't Hear Is One That Kills

Coming Soon — iOS & Android

App StoreComing SoonGoogle PlayComing SoonWebComing Soon

Authoritative In-Vehicle Emergency Warnings — Delivered When They Matter Most

Every day, emergency responders race against time. Ambulances rush to cardiac arrests. Fire trucks respond to structure fires. Police units navigate chaotic intersections at speed. And every day, the gap between a siren and a driver's awareness creates dangerous, preventable conflicts.

Emergency Vehicle Alert exists to close that gap.

The Problem We Solve

Modern vehicles are quieter, better insulated, and loaded with audio systems that drown out the world outside. Add headphones, in-car entertainment, and the reality of an aging driver population, and the result is a collision risk that traditional sirens and lights simply cannot overcome. Emergency vehicle safety research indicates that a substantial share of crashes involving emergency responders occurs at intersections — the moment when drivers fail to yield right-of-way in time.

Source: National Institute for Occupational Safety and Health (NIOSH) and NFPA fire service injury reports have documented intersection risk as a leading factor in emergency vehicle collisions. EVA's design directly targets this documented gap.

The warning technology that protects our first responders hasn't kept pace with the roads they drive. Sirens are 19th-century tools trying to solve a 21st-century problem.

EVA is the solution.

What Emergency Vehicle Alert Does

EVA is a mobile-first public safety platform that delivers real-time, agency-authorized proximity alerts directly to drivers - inside the vehicle, on the device they already have, in the moment it matters most.

When an emergency vehicle goes Code 3, authorized responders activate EVA with a single tap. From that moment, the system continuously transmits live GPS location data to the EVA cloud every one to three seconds. Nearby drivers with the EVA app receive an instant alert: a visual banner, a haptic vibration, and approximate distance and direction - all before they could ever hear a siren.

When the run ends, the alerts stop. No noise. No fatigue. No spam.

Three Apps. One Unified Platform.

Agency App — For Responders

Police officers, firefighters, and EMS personnel activate Code Active on their authorized department device when responding to an emergency. The app securely authenticates the user and device, then broadcasts vehicle position in real time. When the call is complete, a single tap ends the broadcast. No hardware installation required. No CAD integration complexity. It works on the mobile devices your team already carries.

Driver App — Free for the Public

Available for free on iOS and Android once released, the EVA driver app is designed around one principle: intelligent restraint. Alerts are planned to activate only when the app detects the user is actively driving, using speed and motion pattern recognition. Parked drivers, people at home, and pedestrians would receive nothing. When an active emergency vehicle enters a dynamic 0.25 to 1.0 mile alert radius, the driver is designed to receive a clear, calm notification with direction and distance context. Apple CarPlay and Android Auto support are planned for hands-free, eyes-up awareness in the vehicle, subject to platform certification requirements.

Admin Console — For Department Management

Agency administrators manage device authorization, monitor active units, review incident history, and control billing - all from a secure web-based dashboard. Adding or revoking access takes seconds. No IT department required.

How the Technology Works

EVA is designed on enterprise-grade, serverless cloud infrastructure intended to scale to a high volume of simultaneous users with low propagation latency.

  • Real-Time Location Broadcasting: Agency vehicles are designed to transmit GPS position via AWS cloud infrastructure, targeting rapid propagation to nearby drivers.
  • Geohash-Based Spatial Indexing: EVA uses precision geohash spatial indexing to efficiently route alerts to only the drivers who need them - no broadcasting to entire cities, no unnecessary load.
  • Dynamic Alert Radius:The proximity threshold is designed to expand and contract based on vehicle speed, ensuring highway drivers get earlier warning while city drivers aren't over-alerted.
  • Radius-First Detection with Directional Urgency: Every driver within the configured radius receives an alert. Direction and heading data tune the priority and severity of the notification but never suppress a valid near-field warning.
  • Driving Mode Intelligence: Motion detection is designed to prevent alerts from firing when a device is stationary, reducing notification fatigue.
  • Privacy by Design: EVA collects no personally identifiable information from drivers. Location data is anonymous, ephemeral, and never stored for public users.

Built for the Agencies That Need It Most

The enterprise emergency alerting market has long served large metropolitan departments with complex, expensive platform integrations. EVA was purpose-built for everyone else.

EVA is designed to serve the approximately 60,000–70,000 police departments, fire stations, and EMS providers across the United States (estimated based on NFPA, FBI UCR, and NHTSA public counts) — the vast majority of which are small to mid-sized agencies protecting communities of 5,000 to 250,000 people. With transparent SaaS pricing, no hardware requirements, and a 60-to-90-day no-cost pilot program, EVA is designed to eliminate barriers to adoption that have kept smaller departments from accessing modern alerting technology.

The more agencies that deploy EVA, the more value every driver receives. The network grows, safety improves, and the cost per protected life continues to fall.

Why EVA. Why Now.

Smartphones are already in virtually every vehicle in America. Drivers trust app-based navigation, real-time traffic, and mobile alerts. The infrastructure for mass public adoption exists today. What has been missing is an authoritative, intelligent, restraint-first alerting system that agencies can deploy without enterprise IT, and that drivers will actually keep installed.

That is the problem EVA is designed to solve.

Responding faster. Yielding safer. Protecting the people who protect us.

Page last reviewed: August 2026. Emergency Vehicle Alert is in active development. Features and capabilities described on this page reflect the intended design and may change prior to release. This page does not imply collision prevention or guaranteed safety outcomes. EVA is a supplemental awareness tool and does not replace lights, sirens, traffic laws, or driver judgment.

Emergency Vehicle Alert is developed and operated in Des Moines, Iowa. For agency pilot inquiries, investor relations, or partnership opportunities, contact us at support@emergencyvehiclealert.com.

Questions about Emergency Vehicle Alert?

Reach out to the Geovanta Technologies team for support, partnership inquiries, or to learn more about our in-house product roadmap.

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