ArcGIS: Road Line Markings Map Layer

Road Line Markings

Road line markings on local roads are the responsibility of the Local Council and thus digitising road line markings becomes a major advantage for anyone managing the lifecycle of those assets. Simply knowing where your assets are in relation to the road makes it that much more useful in reports because you're often trying to secure funding to maintain these assets. Nothing like looking at decision makers and showing them a big map of your assets and explaining that "this is what I have to work with and I want more money to maintain all this".

The alternative of not getting funding is well... road line markings fade or get destroyed over time.

Road lines are divided into two feature classes: a point based feature class for symbology and a line based feature class for both traverse and longitudal lines.

Traverse lines are any road line markings that run across or perpendicular to the direction of the road. Longitudal lines follow the direction of the road. An example of a traverse line is any give way holding lines, stop lines or zig zag crossing warnings. Correspondingly the center line or double line markings running down the middle of the road to separate the road would be classified as a longitudal line.

This is important to know because the asset owner classifies all road line markings into traverse and longitudal lines, then further classifies those lines into specific types of markings or symbology. However in GIS we don't really care about the classifications, only what we can demonstrate on the maps and linking that feature back to the corporate asset management system using the unique key. Useful attributes from a layer management perspective include the Street Name, Locality and Description (type of asset) which would help us symbolise the lines differently if required by the asset owner.

Generally we don't want to store the attributes of the road line marking in GIS because it would require the asset owner to learn to use our platform. There's no reason to do that if the asset owner is already familiar with the corporate asset management system as database joins are a pretty basic operation.




arcgis, road infrasture, assets, data management, digitisation, classifications