Digital Train Radio System Como Site Review of Environmental ...

• It is the only rail-specific communications standard and has the highest levels of safety
and reliability in its design.
• It is an open standard with a large number of equipment suppliers.
• It achieved a higher level of compliance with the RailCorp functional requirements when
compared to the other systems.
• It is deployed by major rail operators in Europe and Asia, some with networks
comparable in size and complexity to RailCorp’s network.
• It operates on a spectrum of 1800 MHz which was available for purchase by RailCorp.
The other options would have required the leasing of a radio spectrum from a
telecommunications licence holder.
• It is a scalable network that can grow in step with RailCorp operations and network.
• It is compatible with the Australian Rail Track Corporation’s communication system.
• It provides a platform for future enhancements and increased operational safety,
including a Level 2 Automatic Train Protection (ATP) System, as per the
recommendations of the Waterfall inquiry.
• It will deliver the best value for money solution with the least risk.
3.5 Alternatives to the Como site
The following options were considered for the development of the Como site:
• to do nothing;
• install the antennas on existing communication facilities in the Como area; or
• Install a new BTS within the rail corridor near Como Station.
The do nothing option was rejected for the reasons listed below.
• The inability to meet the requirement of 100% network coverage.
• A ‘black spot’ in the DTRS network, resulting in a significant safety issue in the event of an
emergency call or a train incident.
• The increasing maintenance costs of the MetroNet facility and the limited reliability for
adequate operation for the next 10 – 15 years.
None of the existing communications facilities were in a suitable position or offered the required
height to provide adequate coverage to the rail network, and so were not selected for this
proposal.
Radio frequency modelling also indicated that a new BTS at Como railway station would not
provide adequate coverage to the rail corridor. A second site would then be required, increasing
the costs and environmental risks of the proposal.