Efficiency and Road System Management
Outcome: Reliable and efficient movement of people and goods
The Efficiency Service seeks to improve the efficiency, capacity and utilisation of the existing road network whilst the Road System Management Service seeks to optimise real-time management of the network, provide traveller information, asset management planning and to support service delivery throughout the organisation. Together these services contribute to achieving the outcome. We demonstrate this through the following measures:
| % Community Satisfaction |
|
|
90 |
88 |
| Road network permitted for use by heavy vehicles |
B Double – 27.5m %
Double RT – 27.5m %
Double RT-36.5m %
Triple RT-53.5m %
|
96
96
78
44
|
97
97
80
45
|
| % Network configuration |
Roads |
|
90 |
92 |
| % Network configuration |
Bridges |
Strength
Width
|
91
96
|
94
96
|
| % of contracts completed on time |
90 |
83 |
| % of contracts completed on budget |
90 |
100 |
| Average $ cost of network management per million vehicle km travelled |
5,300 |
5,388 |
Effectiveness Indicators
Community Satisfaction
This indicator represents how satisfied the community is with Main Roads’ overall performance in the management and operation of the State road network. 88% of survey participants rated Main Roads’ performance as okay or better, a slight increase on 2017 results. Three regions either met or exceeded the 90% target with the Kimberley region achieving 96%. Wheatbelt had the lowest overall performance rating of 61%.
Road Network Permitted for use by Heavy Freight Vehicles
This indicator relates to the efficient movement of goods within Western Australia and the percentage of available State roads accessed by the following types of vehicles B-Doubles, Double road trains and Triple road trains. The use of larger vehicles with greater payloads can increase the overall efficiency of freight transport operations, resulting in lower transport costs. However, to maintain road safety and guard against infrastructure damage, restrictions are placed on some trucks. Because of the relatively high efficiency of these vehicles, the proportion of roads accessible to them is an important factor in the overall efficiency of freight transport in this State. Over the past four years the trend has remained relatively consistent with minor fluctuations in results attributed to changes in ownership of roads between State and Local Government.
Network Configuration-Roads
This indicator shows the percentage of travel undertaken on roads meeting specific criteria for seal width, carriageway width and curve rating. The indicator gives a measure of the ability of Main Roads to plan for and maintain roads to desirable standards. In 2018, 92% of travel was undertaken on roads meeting the seal width, carriageway width and curve rating criteria which is above the target of 90% for that period. The results over the four-year period are relatively consistent and demonstrate that Main Roads continues to plan and program works to address roads that are below the criteria.
Network Configuration – Bridges
Like the roads measure, bridges are assessed for strength and width using agreed investigatory criteria. The monitoring of bridge strength and width needs to ensure a safe and efficient road network relating to improved access and transport efficiencies. These measures are indicators for the number of bridges that meet, or are above, the investigatory criteria, recorded as a percentage of the total number of bridges on main roads and highways. Bridges that do not meet the investigatory criteria for strength or width are considered in assessing, scoping and prioritising works, as part of the ten-year bridge strategy. Strength – The results of this indicator show that 94% of the bridges meet the agreed criteria for strength against a target of 91%.
Width – In relation to width, 96% of bridges meet the criteria against a target of 96%. It should be noted that a minor modification was made to the methodology for Bridge strength criteria this year which resulted in a slight increase in the number of bridges meeting the criteria. The modification excluded the vehicle category of “quads” from the calculation due to these types of vehicle rarely being used by operators and therefore not truly reflecting the access needs of the network. Prior year’s figures have been amended and are included in this report for consistency in reporting previous results. The modified outcome for each previous year was immaterial i.e. less than a 2% change and is still meeting the respective years targets.
Efficiency Indicators
Percentage of Contracts Completed on Time
This indicator represents the percentage of contracts delivered on time in the Road Efficiency Service. The result achieved was 83%, which is below the target of 90%. Of the four contracts that were late, one is on hold pending further approvals being received, whilst two of the contracts were late due to contractor issues with resourcing and non conformance with Australian Standards for barrier railing. The final late contract was delayed due to inclement weather, an extension of time has since been granted however, at the time of reporting had not been approved. Percentage of Contracts Completed on Budget This indicator represents the percentage of contracts that were delivered on budget in the Road Efficiency Service. There are no contracts over budget for this Service therefore the result achieved was 100% which is above the target of 90%.
Average Cost of Network Management
This indicator measures the financial efficiency of the Road System Management program in terms of cost per million vehicle kilometres travelled to manage the road system. In order to compare current figures with previous years all figures have been adjusted and reported in terms of current year’s dollars. In respect of the current year, the result of $5,388 per million vehicle kilometres travelled is slightly higher than the target of $5,300.
