Sentris – Crime Intelligence and EMS Performance Analysis

One of the things I’ve learned while building Sentris is that raw data isn’t enough—especially when it comes to public safety.

When people hear sirens, see crime, or worry about their family, they don’t care about CSV files or dashboards.
They care about how fast help shows up and whether it shows up at all.

That’s what led me to create the Triage Performance Index (TPI)—a real-time, transparent way to measure how well emergency services are responding to incidents across Detroit.

The problem

While working with 911 data from the City of Detroit, I noticed a major gap.
Sure, we can see when a crime was reported and when the first unit arrived—but there’s no easy way to interpret that information in context.

Is an 8-minute response time good or bad?
How does that vary by neighborhood, time of day, or type of emergency?

And more importantly—are things improving, or getting worse?

Most people don’t have the time or tools to answer those questions. That lack of visibility leads to frustration, mistrust, and inaction.

Why this matters to me

I grew up in Detroit. I know what it feels like to wait for help that never comes.
Sometimes police didn’t show up. Sometimes they came too late.

As a kid, those delays weren’t abstract—they were terrifying.

Now that I have the technical skills, I’m turning that experience into something meaningful.
The Triage Performance Index gives everyday people a simple, clear signal:

• Is the system working?
• Is my neighborhood being treated fairly?
• Can I trust that help will come when I need it most?

How it works

The TPI isn’t just a number—it’s a composite performance score calculated using factors like:

• Average response time by zone and call priority
• Deviation from the city-wide baseline
• Call volume and density
• Emergency type (violent vs. non-violent)
• Historical trends (improvement or decline over time)

Each neighborhood or zip code gets a live score that updates continuously—so residents can track how their area is being served, in real time.

It’s a way to convert noise into signal. Data into accountability.

What’s next

Sentris is still evolving, and I’m actively refining the TPI algorithm using historical benchmarks and new data every week.

Eventually, I want this score to be as familiar and useful as a credit score—but for public safety.
A number that helps citizens understand how their city is performing and where improvements are needed.

Sentris isn’t just another crime map—it’s a tool for awareness, empowerment, and systemic accountability.

Detroit doesn’t need more data—it needs context, transparency, and action.
That’s what I’m building.

Follow the project or try it out at Sentris