What if there was a solution?

The problem with existing
vehicle detection systems


INDUCTIVE LOOP DETECTORS break. You have to stop traffic just to replace a broken loop. Replacement takes quite a bit of time as well. Moreover, they are invasive.

And while the loop remains broken, the max recalls snarl up your traffic. And citizen complaints mess up your entire day.

We know… we've been there.


WIRELESS MAGNETOMETERS die early. Cold weather is their Kryptonite. The battery drains, and water seeps into them, killing them. And, they are costly. Wireless interference nails them too.


A CAMERA is like the human eye. The eye can't see if it gets blinded. The sun, reflected light, shadows of trees, moving clouds, blooming headlights, shadows of cars, rain, snow, etc. affect detection accuracy.

All it takes is one foggy day, and the phone rings off the hook.

Nothing works.

The situation seems hopeless.
Is there a solution?


What if we told you there is a solution.

What if we told you that there is a technology that looks 1000 feet down the road and starts tracking vehicles.

This technology classifies the vehicles accurately too.

Pause and think about what we said. 1000 feet. Unprecedented.

But wait, there is more. It tracks the vehicles by lane too.
It knows when cars are changing lanes.

It detects stopped cars. It knows when they pull up to a stop.

Cars, trucks, bicycles, pedestrians get detected and tracked accurately.

It will detect a toddler on a tricycle.

Need we say more?

Radar: the technology that is redeeming VEHICLE DETECTION


Introducing the latest generation of radar detection.

In the 19th century, Heinrich Hertz discovered that metallic objects reflect radio waves. In the 20th century, German inventor Christian Hülsmeyer started using this principle to avoid ship collisions early detection of ships. Then the military took over the technology. Military scientists started broadcasting short pulses of radio energy and timing the pulses on an oscilloscope.

Armed with this information and the direction of the antenna, they could determine the range and angular locations of the targets to blow up.

During the World War II, both militaries honed the technology to the highest possible degree of precision. It was either blow up or be blown up.

Over the decades, the military has continued research on using radar for various types of detection. The advances in technology both in hardware and algorithms have perfected the radar technology to the point that it can detect and track mosquitos carrying the Zika virus, a mile away.

Radar is the technology of the future.

And the technology once controlled by the military has found its place in the civilian application.

By the way, we forgot to mention. About the mosquito-detecting radar being hyper-sensitive.

When the radio waves are reflected back after hitting the mosquito, the receiver can identify the species, gender, flying speed and direction, and even whether the insect has eaten.

Another recent civilian application of radar technology is making a traffic professional's life easier. Detecting vehicles with military precision.

We introduce the Hawkeye radar with 3Dimensional-Ultra High Definition (3D-UHD) technology.

Vehicle detection will never be the same again.

Other Forms of Vehicle Detection vs. Hawkeye


Automated Signal and Freeway
Performance Measures (ATSPM/AFPM)

As a Traffic Engineer You want to Know what’s happening in the streets before you start getting complaints.

You have all the hardware, detection, controllers, etc. but if you don’t process the data you collect, it doesn’t exist. How do you operate your traffic network more efficiently and proactively?

The answer lies in implementing Automated Signal/Freeway Performance Measures.

Hawkeye ATSPM/AFPM is a comprehensive solution for collecting and visualizing high-resolution data. It allows continuous monitoring of intersections and freeways, using highly accurate, 3D-UHD Radar technology.

This represents a whole new universe of data granularity and powerful reporting.

Two separate inventories of data charts help grasp both the performance issues at your local intersection and those on freeways.

Hawkeye ATSPM/AFPM reports real-time data that traffic engineers have longed to have for decades.

Introducing the latest generation of radar detection.

Intersection Metrics


Message from Reggie Chandra, Ph.D., P.E.

President and CEO of Rhythm Engineering

I've been a traffic engineer for nearly three decades now.

It has been a fun journey. Mostly.

I am grateful that I've been able to work with a bunch of crazy geeks to invent the In|Sync Adaptive Traffic Signal System. In|Sync is a rule-based Artificial Intelligence (AI) system with an eye and a brain.

We selected video detection as the eye (both optical and thermal) since In|Sync optimizes traffic based on real-time queue lengths at the stop bar.

Inductive loop detection or magnetometers could not provide queue lengths deep enough for the In|Sync model.

Only cameras could provide queue lengths 100'-200' deep.

But, the cameras came with a price. They missed cars, generated false positives, and the sun and inclement weather blind them.

If the eye can't see, then the brain can't process. The quality of vehicle detection limits the performance of any signal optimization system.

So, I was ecstatic when I stumbled across the new and evolved radar technology (3D-UHD) that could accurately detect vehicles with nearly 100% accuracy.

Not only detect vehicles at the stop bar but about 1000' away. If this is not enough, the radar can track and classify vehicles through individual lanes.

This detection and data collection capability is unprecedented.

It means that we have information about vehicles arriving at the intersection about 20 seconds ahead of time.

This information is a game changer.

Radar detection is catapulting traffic modeling to a new era.

We can calculate HCM Stopped Delay, Level of Service (LOS), high-resolution data and Purdue Metrics accurately, out of the box.

We can tell you how many cars ran the red light (or sneaked through on amber) on any day, out of the box.

I am working feverishly with my team to develop a new and improved traffic signal optimization model (both for developing timing plans and for In|Sync) based on the unprecedented breadth and accuracy of data provided by the radar.

So, my fellow traffic professional: it is with joy that I submit the Hawkeye 3D-UHD Radar for you to examine and consider
for your use.

Very respectfully,
"The quality of your signal operations is
directly proportional to the quality of
your vehicle detection."