Considerations7

TRAVEL SPEED PERFORMANCE INDICATORS

CONSIDERATIONS

The following requirements of the agreed methodology should be noted when considering the qualifications of each of the member authorities:

Urban

  • Travel data collections are undertaken up to three times during the financial year — in March/April, July/August and October/November.

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  • Traffic volumes used for weighting purposes are measured during the financial year.

Tasmania and the Northern Territory are not participating in the measurement of Travel Speed performance indicators.

Less than 1% of both the Northern Territory’s and Tasmania’s arterial networks are in urban areas where congestion is an issue of major concern.

Rural

  • Roads included in the rural network sample have traffic volumes and environments that are predominately rural and are generally associated with the start of the rural speed zone.

  • The surveyed network is a 15% sample of all ‘M’, ‘A’ and ‘B’ classification roads and any ‘C’ road carrying more than 2000veh/day (AADT).

  • The 15% sample is surveyed once per year between February and April with a maximum interval between surveys of three years. The next scheduled reporting year is 2001/02.

 

Queensland

The methodology for the measurement of Variability of Travel Time was reviewed by Queensland in 2003.  As a result, standard deviation is now calculated for the average route time (by considering inbound and outbound direction) instead of directional standard deviation.  Therefore, 2002/03 results and onward should not be compared against previous years.

A new time series will commence from 2002/03 financial year.