ROAD MAINTENANCE EFFECTIVENESS
QUALIFICATIONS
New South Wales
Roads and Traffic Authority (NSW) does not report Road Maintenance Effectiveness as a National Performance Indicator.
Victoria
Roughness data is collected on the whole arterial network every two years (50% each year)
Queensland
In Queensland a new system for collecting roughness data was introduced in 2000. Caution should be taken when comparing previous years' data with this figure.
Western Australia
RME is not available because of lack of expenditure data due to the implementation of term network contracts.
South Australia
Roughness data is collected on the whole arterial network on a rolling four year cycle. National Highway and Urban Arterial Roads are surveyed each year.
Tasmania
1. Results are reported for "All Roads" only as the network is predominantly rural in nature (less than 1% urban).
2. Maintenance expenditures are as per the 1999-2000 Budget Expenditure Summaries, with pavement, shoulder and drainage activity costs being apportioned according to historical data.
New Zealand
1. Austroads methodology and procedures for data collection and calculation are followed as closely as possible, but approximations have been made to distinguish raw expenditure data into "rural" and "urban" and to separate on-road expenditure data. Performance data for 1995-96 and 1996-97 was calculated on the average of rationalised historical expenditure data of 1994-95 to 1996-97. Data for 1997-98 has been re-calculated using 1997-98 expenditure only, and data for 1998-99 has been calculated on the average of the 1997-98 and 1998-99 expenditure. 1999-2000 data has been recalculated using actual 1999-2000 maintenance expenditure.
Methodology for 01/02 has been changed to reflect the instructions. (we are now using a 3-yearly average for the expenditure figures form RAMM, previously we had used the total for all year figures).
2. All costs are in Australian dollars. NZ dollars converted at NZD$1.00 equal to AUD$0.90.
3. The climatic conditions and land terrain in New Zealand require a high level of maintenance intervention frequency, contributing to greater maintenance expenditure. In New Zealand, pavement rehabilitation, short length area-wide-treatments and drainage control improvements by maintenance are done on about 1.5% of the total length of highways per annum. This also contributes significantly to maintenance expenditure. Expensive resurfacing treatments, thin asphaltic surfacing and pavement rehabilitation of urban motorways in Auckland and Wellington contributed to the significant increase in maintenance expenditure on urban highways during 1997-98 to 1998-99.