TOP QUOTE: “The problem with socialism is that sooner or later you run out of other people’s money.”
Generation 5 of the digital enforcement technology is now out - 2017 doppler test
TOP QUOTE: “The problem with socialism is that sooner or later you run out of other people’s money.”
TOP QUOTE: “The problem with socialism is that sooner or later you run out of other people’s money.”
I'd strongly suggest avoiding the tunnels on a bike until we find out how well the ventilation works, and how bad are the traffic jams exiting the tunnels onto the NW motorway.
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No idea, but I happened to see the new control systems for the Wgtn tunnel upgrade a few years ago.
Like I said, a lot of HP involved, apparently there's a reasonably heavy incoming breeze at both tunnel entrances at peak flow.
One of the changes to the system was driven by a fire in a tunnel in Europe, where the ventilation made the fire dramatically worse, but I don't know how they manage that.
Go soothingly on the grease mud, as there lurks the skid demon
I reviewed the tunnel ventilation for Waterview a few years ago, and was not impressed. They certainly weren't working to what I'd call an appropriate standard back then.
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They had engaged a consultant to recommend limits within the tunnel. But I don't think either NZTA or the consultant had a good understanding of the issues.
As an example, they planned to turn the fans off at a certain time every evening to save power and rely on vehicle motion to move the air. Maybe that is a reasonable approach when traffic is light, but they hadn't thought that using the measurements from their air quality instruments might be a better way to do it.
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