[FoxtrotGolfXray 5.0]

Originally Posted by Trendseeker

No, not like that. Here’s a result from a search.

A dividing line is a road marking formed by a white line or two parallel white lines (broken or continuous) designed to separate the parts of a road to be used by vehicles travelling in opposite directions. You must keep to the left of these lines (Examples 1 and 2).

Must have been a lot of side-swipes or near misses on that stretch of road.

Thanks. Following your prompt, I did a google search and came across a Queensland government reference and this pdf.

The article suggests that the wide strip may be placed to provide additional space when cars are passing other vehicles on the shoulder, and given these went in at the same time as the safety barriers, I suspect they are there for this scenario.