This year, the Inframatic company was again present at the NAT conference 2024 in Nashville, Tennessee and informed each other about the latest developments in tunnel technology.
Our Stefan Haydn was there as always and was able to have many good discussions with all the companies involved and those responsible for the tunnel industry and the authorities.

Have you ever wondered why you keep standing at red lights at intersections for so long and no one comes from the other side?
The answer is very simple: these intersections are controlled by simple timers that have no idea whether a vehicle is there or not.
And our solution to this problem is even simpler.
Rely on our traffic management server.

If you think that sounds complicated and expensive, you’re wrong.
Where the relays and timers are now mounted, we simply replaced the old control components with a single control unit that processes and switches everything. To detect wheter a car or bicycle stands in front of the intersection we use cameras and detect the objects. Of course separeted by the different lanes. Depending on the local weather or environmental influences, we supplement the cameras with radar or lidar detection devices.

In addition to the advantage that no one has to wait unnecessarily in front of an intersection, our solution also offers many other advantages free of charge:

• Cam images can be used also for law enforcement
• Recording of the images
• Cascading of following intersection is possible – Green light section over multiple controllers
• Interface to other devices or control systems is available (e.g. BacNet, TCP, etc.)
• Multiple fallback levels are integrated (in the event of failure of individual or all sensors)

Inframatic is proud to have attended this year’s NAT conference. Our colleague Stefan Haydn presented the topic of flow control in tunnels as a co-speaker.

For more informations please visit NAT conference 2022

What is a tunnel with a safety ventilation without a serious test of the same? Nothing to be exact.
Inframatic changes that by testing the safety-relevant aggregates.
Fire ventilation, using ultrasonic measuring devices in a cross arrangement, to test whether the air speed achieves sufficient performance even in the event of an incident. At the same time, we tested airflow visually, using smoke grenades.
These show “mercilessly” where any defects are.
In the case of the extension of the San Francisco Metro from Union Square to China Town, no doubt about it. The following tests were carried out:

• Ultrasonic cross-measurements of the airspeed across the whole tunnel section, 4 pcs. at the same time
• Smoke grenade test to make visible where the airflow goes
• Door force measurements to comply with regulations
• Noise measurements
• Anemometer measurements