Single induction loop

Measuring system equipped with a single induction loop

The use of a single induction loop is an unusual solution. It should be seen as a cost-saving solution, used for example when using an already installed sensor used for other purposes.

Required module:
1 loop – measurement module working with a single inductive loop

Required sensors:
induction loop

Module: 1 induction loop
Module: 1 induction loop

Measured parameters:

  • vehicle arrival time (with 0.01s resolution),
  • vehicle count,
  • interval between vehicles (0. 01s),
  • magnetic profile and vehicle classification based on it
    (4 classes are distinguished: passenger cars, vans, trucks, buses)
  • trailer detection,
  • speed measurement (single-loop) (measurement error from 5% for passenger vehicles to 18% for trucks),
  • length measurement (measurement error up to 20%),
  • classification by length (4 vehicle classes are distinguished).

Determined characteristics (variation as a function of time):

  • traffic density,
  • flow (of vehicles),
  • lane occupancy,
  • average speed,
  • number of vehicles by class (according to selected classification scheme).