Bruce Highway Ramp Metering - Throughput increase

While looking at Queensland traffic count data. I wondered what had happened on the Bruce Highway on the ramp metering section when it opened, having worked on the traffic modelling a few years earlier in the Business Case stage.

So the ramp metering opened southbound in Aug 2018, so the traffic flows at the main pinch-point north of Dohles Rock Road. Counts in 2017 (before opening) and 2019 (after opening) show post opening an increase in traffic flow throughputs between 6-10 am, the main operational times for the ramp-metering. While traffic flows decreased 4-5 am, probably meaning some people re-timed to later travel and got perhaps 1/2 or 1 hour more sleep.

Great to see it was successful. On the plus side, our modelling showed an increase in throughput, but I think it was not quite so great, so a better success than the Business Case Modelling, which helped secure funding. Searching for the speed data, but the traffic analysis the aim was to maintain traffic flows and speeds on the mainline, although a proportion of traffic gets delayed at the on-ramps.