Every Ride Should Be a Journey, Not a Gamble.

Because getting home safely should never be a matter of luck.
Every time we get on a bicycle, we have a destination in mind.
A morning commute. A weekend ride with friends. A training session. Or simply the freedom to explore somewhere new.
We think about where we're going, not whether we'll make it home.

And that's how it should be.

Yet every ride comes with something cyclists cannot fully control: the traffic around them.
A vehicle approaching from behind. A driver who hasn't noticed a cyclist. An overtaking maneuver with too little space.
These situations can develop in seconds.
But what if technology could help us recognize potential danger before it becomes an emergency?

Road Safety Is Improving. But Not Equally for Everyone.

According to the European Transport Safety Council's 2026 report, 1,926 cyclists lost their lives on EU roads in 2024.
Over the previous decade, cyclist fatalities declined by only 8%, compared with a 19% reduction in deaths among vehicle occupants.
The same report found that approximately 65% of cyclist fatalities involved collisions with motor vehicles.
These figures tell us something important.
Road safety technology has advanced significantly, but cyclists remain among the most vulnerable road users.
Recent cycling incidents around the world serve as reminders of why continued progress matters.

The question isn't only how we respond after something happens. It's how we recognize risk before it happens.

A Few Seconds Can Make a Difference

Consider a simple scenario.
A vehicle approaches a cyclist from behind at a relative closing speed of 60 km/h.
That means the distance between them is decreasing by approximately 16.7 meters every second.

At that constant closing speed:

• From 100 meters away, the vehicle is approximately 6 seconds from reaching the cyclist's position.

• At 60 meters, only 3.6 seconds remain.

• At 30 meters, that window has narrowed to just 1.8 seconds.

These are simplified calculations, not predictions of a collision. The vehicle might slow down, change lanes, or overtake safely.

But they illustrate how quickly the situation can change.
For a cyclist focused on the road ahead, recognizing a rapidly approaching vehicle can be difficult.

The earlier we understand what is approaching, the more opportunity we may have to respond.

This is where intelligent sensing technology becomes relevant.

From Visibility to Awareness

Traditional bicycle safety has focused heavily on visibility.
Brighter lights. Reflective clothing. Better illumination.
These measures remain essential.
But visibility alone doesn't tell cyclists what is happening behind them.
Radar introduces another capability: the ability to detect and track approaching vehicles.

Modern Frequency-Modulated Continuous-Wave (FMCW) radar uses frequency-modulated radio signals to estimate target distance and relative velocity.
For example, a 24 GHz FMCW radar operating with approximately 200 MHz of sweep bandwidth has a theoretical range resolution of around 0.75 meters.
Range resolution is only one aspect of radar performance. Actual detection distance, accuracy, and reliability depend on antenna design, signal processing, target characteristics, and environmental conditions.
More importantly, radar measurements can be combined over time to track how vehicles move relative to a cyclist.

Instead of relying only on what riders can see or hear, these measurements offer an additional source of information about surrounding traffic.

Detection Is Only the Beginning

Knowing that a vehicle is approaching is useful.
Understanding how it is approaching can be even more valuable.
An intelligent bicycle safety system can be designed to consider several dimensions of traffic behavior:
Distance: How far away is the approaching vehicle?
Relative speed: How quickly is the distance changing?
Position: Where is the vehicle relative to the cyclist?
Movement patterns: Is the vehicle maintaining its distance, closing rapidly, or moving laterally?
Warning priority: When should the rider receive an alert?
The challenge is not simply collecting more sensor data.
It's transforming that data into meaningful awareness without overwhelming riders with unnecessary warnings.

The goal is not to warn more often. It's to warn when it matters.

Making Active Safety Part of Every Bicycle

At TeraSilIC, we believe advanced sensing technology shouldn't be limited to cars.
Our work in 24 GHz radar ICs, antenna modules, signal processing, and detection algorithms supports bicycle and e-bike applications.
We see bicycle active safety evolving through three connected capabilities:

1. Detection — Knowing what is nearby
Radar detects approaching traffic and estimates its relative distance and motion.

2. Understanding — Recognizing what is happening
Tracking and scene-understanding algorithms help distinguish traffic behavior and identify situations that may deserve attention.

3. Intelligent Warning — Communicating what matters
Context-aware warnings aim to provide relevant information at the appropriate moment, helping riders maintain awareness without unnecessary distractions.
Combined with cameras, connected displays, and other sensing technologies, these capabilities can form the foundation of more comprehensive bicycle active safety systems.
Our vision is to make these technologies increasingly accessible to bicycle and e-bike manufacturers through integrated OEM solutions.

Every Ride Deserves a Safe Return

Technology cannot eliminate every road hazard.
Radar cannot guarantee collision prevention, and no single sensor can replace responsible driving, safer infrastructure, and careful riding.
But many dangerous situations develop through measurable changes in distance, speed, and movement.
Those changes create opportunities for earlier detection and better awareness.
And those opportunities are worth pursuing.
We believe that every cyclist deserves the freedom to enjoy the road without treating safety as a matter of chance.

Every ride should be a journey, not a gamble.

Because getting home safely should never depend on luck alone.

At TeraSilIC, we're working to turn sensing technology into meaningful rider awareness — one ride at a time.
Building a safer future for bicycles, e-bikes, and connected mobility.

Interested in integrating radar sensing or active safety into your next bicycle or e-bike platform? Connect with TeraSilIC to explore OEM collaboration opportunities.

References

• European Transport Safety Council (ETSC), Improving the Safety of Cycling in Europe, April 2026.

• Infineon Technologies, FMCW RADAR Digital Signal Processing, 2022.

• Analog Devices, How to Build a 24 GHz FMCW Radar System.

The closing-speed examples are illustrative calculations. They do not represent measured collision-prevention performance or a guaranteed warning time for any TeraSilIC product.

mmWave radar and AI sensor fusion for safer bicycles and e-bikes. Defining the standard of sensing for urban micromobility safety.

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