Asset and Network Information

Routable Road Centreline A Main Roads Perspective

Steve BostonManager Asset & Network InformationAugust 2009

Asset and Network Information

Main Roads Western Australia is entrusted with providing access to one of the largest geographically spread roads networks in the world.

Our purpose is to provide safe and efficient road access that will enhance community lifestyles and ensure economic prosperity

We are road managers

Asset and Network Information

How do we manage our data ?

We manage our roads from an asset management perspective.

All road agencies worldwide manage their assets in a linear referencing manner.

Spatial is important to us, but not our main focus.

We are ‘roads’ centric, not ‘GIS’ centric with all our data management

Asset and Network InformationOur use of spatial is increasing All our road attribute data is spatial but we

don’t store it that way GIS applications are in use and are being

developed further Mobile solutions will see a greater use of

spatial data collection and GPS positioning in the field

Our external customers are demanding greater access to our data

Internally, our reliance on and preference for linear is unlikely to change.

Asset and Network Information

Integrated Road Information System (IRIS)

IRIS is a customised COTS solution IRIS manages most of our corporate

road data and information IRIS manages our Network Control

System (linear referencing) The NCS is essentially our x, y and

measure (slk) IRIS is based on a link / node model.

Asset and Network Information

Asset and Network Information

What’s in IRIS All State, local roads and PSP’s ~

150,000 km’s Administrative data eg road

hierarchy, RAV routes Inventory data eg speed zones,

lanes, surface. Road Use data eg traffic volumes,

vehicle classifications, travel time, crash

Road Condition data eg roughness, video

Asset and Network Information

How do we manage the data?

Integrated system (IRIS) that’s centrally managed

Data management plans and owners for all data

Standards and representation guidelines in place

Road Information Centre – Knowledge Base

On every desktop including remote access by contractors

Asset and Network Information

Maintenance of dataNCS and administrative data State roads are updated as a result of Main Roads

initiating ‘work’ on the network Local road updates are lodged with MRWA by LG using

ROMANInventory State and some Local road data updates by data

owners as part of change process Local road updates provided by LG within ROMAN /

IRIS update processRoad Use Continuous monitoring Programmed capture programsCondition Regular network surveys

Asset and Network Information

RRC Issues Main Roads spatial centreline suits asset

management requirements at present. We currently don’t have a business case to

capture some navigation attributes. Without a business need it’s impossible to

have sustainable data maintenance in place Customer service obligations are now driving

us towards evolving a Navigation capable centreline

The challenge for the RRC group has always been in understanding the gap

Asset Management ≠ Navigation ≠ Mapping

Asset and Network Information

Questions please