Tunnels - Citilog Video Incident Detection
Products / Citilog Video Incident Detection / Tunnels|
Safety and Security of Tunnels
Safety and Security of tunnels have become major issues over these past years.
are sensitive and vulnerable infrastructures and any incident, even
minor, if not tackled early enough can turn into major events such as
Accidents, Smoke or Fires.
Aside from ensuring mobility through the
tunnel, Traffic Control Centers now need to keep an eye on the
This is the reason why Tunnel Managers
want faster, more exhaustive and more reliable incident detection means
for their tunnels in order to ensure maximal security of the
infrastructure and optimum Safety of their Road Network.
Why use video based detection in your tunnel?
Video Detection is the only solution that meets these 3 criteria of:
tunnel operators around the world have already appraised the situation
and are now using video detection as the main component of their safety
- speed of detection
- and exhaustiveness
Firstly, it allows real time detection of an event: alarms
are most of the time triggered before any consequence on the traffic
can be observed.
Secondly, it provides a wide spectrum of detectable
events, from the stopped vehicle, the pedestrian and the wrong way
vehicle to fire detection and smoke detection. By combining all these
possibilities, image processing appears as the most comprehensive means
of detecting accidents in tunnels.
Thirdly, it offers real time
incident validation tools for operators in the control room such as pre
and post incident video recordings. These tools are highly valuable
when it comes to assessing the gravity of an incident. Being able to
instantly look at the seconds preceding the detection time allows
operators to better understand accident scenes and therefore react
quickly and efficiently to all situations.
How does a Video Detection System work?
Existing video signals from the bridge CCTV system (analog or digitally encoded) are fed into a Video Detection Unit.
Video Detection Unit runs a Detection Algorithm. This algorithm is
based on tracking techniques and trajectory analysis and detects
stopped vehicles within the field of view of the camera.
Detection Units are linked to a Supervisor that receives and dispatches
the alarms to Workstations and/or ATMS / SCADA systems. Operators are
then, instantly provided with the location of the incident, its type,
the live video image and the recording of the seconds preceding the
All these elements combined together allow for a fast and efficient response to incidents.
Can it be installed at any tunnel?
Citilog Video Detection solutions have been designed to fit into
Tunnels security systems with no disturbance of the existing video and
safety systems architectures.
The Video Detection System operates on
standard existing video signals: either analog signals or digitally
encoded signals over IP.
Video Detection Units are located wherever
the video signals are available (in the field, in a hub or at the
tunnels Traffic Control Center). The systems architecture is flexible
and Citilog offers a wide range of communication solutions.
Citilog also offers solutions that can run reliably on Pan-Tilt-Zoom cameras, with or without preset positions.
extensive experience in this field have lead us to adapt our algorithm
to extreme situations, be it a low clearance tunnel, a heavy traffic
urban tunnel, a high speed motorway tunnel or high performance
Why Citilog is recognized Wold leader in Automatic Incident Detection
From its earliest development 20 year ago to its most recent
enhancements, Citilog Video Image Processing algorithms have been
focused on incident detection and the transportation industry. Because
this algorithm is not based on Traffic Data variation or Loop Emulation
but on true Vehicle Tracking, our systems are far more accurate and
Citilog is recognised as the leader in Automatic Incident
Detection because Vehicle Tracking techniques have proved their
superiority in both detecting the right event but also in presenting
Traffic Operators information that they can rely on.
Incident Detection Systems are field-proven and have been successfully
deployed worldwide to enhance Safety and Security on various types of
road infrastructures: highways, expressways, bridges and tunnels.