Traffic Loop Detector

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Traffic Loop Detector

• Los Angeles Signal Construction, Inc.

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• A traffic loop detector is buried in the pavement
  at an intersection (you can often see rectangular
  cuts in the road). When metal is placed on the
  vehicle, the loop will electromagnetically
  trigger the signal.
• In order to operate properly, the loop detector
  requires ideal placement. This is important for
  the safety of motorists and for optimum traffic
  light function.

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Durability

• Traffic Loop Detector is a long length of wire
  that has a repetitive pattern that can detect the
  presence of vehicles. It has been the workhorse
  of the signal industry for years due to its
  relatively low initial installation cost.
• It has become a standard for vehicle detection in
  parking lots, and car park boom gate systems. A
  circular cut is made in the road surface and wire
  is wrapped around it. When a vehicle drives over
  the loop it disturbs the magnetic field and tells
  the intersection controller there are cars
  waiting to go through the red light.
• It is not as prone to false triggers as other
  traffic sensors. This is especially important
  when it comes to scooters, motorcycles and
  bicycles stopped at a traffic signal on
  fixed-time cycles. They can easily pass over the
  loop without triggering it because they do not
  have the mass of larger metal vehicles. This can
  result in unnecessary signal delays.

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Reliability

• A traffic loop detector is a very reliable
  device. In the automated gate industry we use
  them to trigger gates for access and egress. The
  vehicle detection loops are made up of a
  continuous length of wire that repeats at a set
  frequency. When something big and metal rolls
  over the loop it changes the frequency and the
  loop detector detects this change and sends a
  signal to the controller.
• Detectors like these are also used at
  intersections and on motorways to extend green
  lights. When something passes over the detector
  it disturbs the magnetic field and signals the
  intersection controller there are cars waiting to
  pass. Traffic loop detectors are not the only way
  to detect vehicles, passive infrared, ultrasonic
  and acoustic can all be used for vehicle count,
  presence, or lane occupancy. These sensors all
  operate differently but they are all just as
  reliable as a traffic loop detector.

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Installation

• If you've ever driven into an intersection and
  the traffic light is telling you to wait, there
  may be several reasons why. Perhaps the
  pedestrian pushbuttons are faulty, or maybe the
  signal controller isn't properly programmed. But,
  one of the most common culprits is a faulty loop
  detector.
• A traffic loop detector is a sensor used to
  detect vehicular traffic and trigger automated
  gates to open. You've probably traveled over
  thousands of them without even realizing it.
• A loop detector consists of wire "coiled" into a
  square, circle or rectangle shape that's
  installed in the road surface and works like a
  metal detector. When a car drives over the loop,
  it creates a magnetic field that tells the
  controller there is a vehicle in the
  intersection. Unlike telecoils, which pick up
  audio frequencies, loop sensors are specifically
  designed to detect vehicles and only vehicles.
  They are considered the most reliable vehicle
  detection method available.

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Maintenance

• Traffic Loop Installation are the most popular
  kind of traffic sensor used to trigger traffic
  lights. They are easy to install and operate,
  reliable and long-lasting and automate a large
  majority of vehicle detection.
• However, the quality of these sensors can be
  affected by a variety of factors like sun glare,
  fog or temperature. These factors can cause
  vehicles to be incorrectly classified and result
  in the signal turning red even though no cars are
  present.
• Fortunately, there are some great solutions for
  this problem that can solve these issues and
  improve the overall performance of your loop
  detectors.
• One option is to switch over to a more advanced
  system like video detection. This is an excellent
  alternative that uses cameras to see what is
  happening at the intersection in real time. This
  allows the system to better understand demand and
  run a more efficient light cycle. This can save a
  huge amount of money on electricity and time.

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Thank You

• Address 155 N Eucla Ave, San Dimas, CA 91773
• Email info_at_lasignal.com
• Number [phone]
• Website https//lasignal.com