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UTMC car park counters

  • Monitor car park entrances and exits
  • Detect vehicles with internal inductive loop detector or any external detector
  • Fully compliant with UTMC Technical Specifications
  • Used in 80+ car parks and with several different UTMC Common Databases
  Download a datasheet


IDT's fully UTMC-compliant car park counter will collect data from inductive loops cut into the entrances and exits of car parks and send that data to a UTMC-compliant Common Database.

If inductive loops are not available then our counter can accept inputs from other vehicle detectors such as TrafiCam® or Heimdall® detectors.

Car parks with multiple entrances/exits are supported using either secondary counters or remote loops connected via meshI/O. Our counters have been deployed with most currently available UTMC Common Databases - please contact us for confirmation.

Counters in Park and Ride office

Counters in car park cabinet


IDT's car park counter presents data via its ethernet (RJ45) port on the front. This means it can use any available IP communications link such as a corporate LAN, a nearby iMesh link or i3G router (for example, if you have a UG405-compliant UTC junction in the vicinity).

Example deployment

A typical solution using IDT's car park occupancy counter is shown below. This drawing shows a UTC instation communicating with a car park counter (bottom right) which is counting cvehicle movements via two inductive loops.  The car park counter is in a cabinet together with one of IDT's GPRS routers. The UTMC common database requests data periodically from the counter (the interval is set by the system operator at the instation).

The instation processes the count data along with information obtained from other datasources in the UTMC system such as air quality monitors and UTC. By following strategies at the instation (such as car park fill rates, congestion at specified junctions), system managers can set messages on the variable message signs (shown top right).

Click image to enlarge

Because the system is fully UTMC-compliant it can use our counters along with VMSs from several suppliers - all inter-connected with a communications network independent of the end devices. In the example above the sign has a GPRS router but it could equally use an iMesh router to connect to a nearby traffic signal controller without any changes required to the sign.

Operational features
Single loop, dual loop, uni-directional or bi-directional
Determines occupancy, fill/empty rates plus individual entry/exit counts
Support thresholds and alarms (via UTMC-interface)
Stores up to 4 weeks worth of data
Remote diagnostics and maintenance
1 x 10/100baseT Ethernet RJ45
2 x RS232 (9-way D-type) for terminal
4 x Opto-isolated digital inputs
245 x 225 x 88 mm (w x d x h)
2.0 Kg
110/230V (auto switching) 10W Max
IP rating: IP54
Operating temperature
-15 to +60 °C

iCell routers

Our iCell routers provide the connection between our car park counters and the UTMC instation. Over 75 UK car parks use this method to transmit their count data to the instation.
View details »


Our iMesh router can be used to connect a car park counter to a nearby iMesh network and share an existing backhaul link. Counters at the Park and Ride sites in Edinburgh, Sheffield and Scarborough share iMesh links with variable message signs and UTC-controlled junctions.
View details »