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Hill Descent Monitoring (HDM)

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Hill Descent Monitoring (HDM) is a scheme associated with the Telematics Monitoring Application (TMA) of the National Telematics Framework. TMA is a Level 2 Assurance application.

HDM – Bedfordale Hill Scheme

The Bedfordale scheme is administered by Main Roads Western Australia (MRWA) to monitor:

  • the estimated speed of 36.5-metre A-Double combinations (prime mover, semi-trailer towing a 5 or 6-axle dog trailer) operating under permit on part of the MRWA road network, namely Bedfordale Hill (the permit to operate is related to this section of road only; any other permits that vehicles operate under will be considered separately)
  • whether enrolled vehicles stop in the Bedfordale Road Train Assembly Area for a sufficient period before descending Bedfordale Hill
  • whether enrolled vehicles exceed the 40 km/h speed limit when descending Bedfordale Hill.

HDM – Roelands Hill Scheme

The Roelands Hill scheme is also administered by Main Roads Western Australia (MRWA) to monitor:

  • the estimated speed of Category 7 (A) AB-Triples operating under permit on part of the MRWA road network, namely Roelands Hill (the permit to operate is related to this section of road only; any other permits that vehicles operate under will be considered separately)
  • whether enrolled vehicles stop for a sufficient period before descending Roelands Hill
  • whether enrolled vehicles exceed the 40 km/h speed limit when descending Roelands Hill.

Participating in an HDM scheme

To participate in the scheme, transport operators must conform with the requirements specified within the access approval (e.g. a Notice or permit). Enrolment in TMA is one of these requirements.

Find out more details on the scheme by downloading a copy of the Hill Descent Monitoring Schemes document.

To offer services for this scheme, an application service provider (ASP) must be certified by TCA to offer TMA services. TCA must also approve telematics devices used in the scheme. If mass will be monitored using an on-board mass (OBM) system, TCA must approve this device to Category B or C.

TCA will analyse data received through the TMA application, and reports will be made available via the Telematics Analytics Platform (TAP).

For more information on this scheme, please contact us.