Before we launch into this, if you haven't seen, promoted or signed the current petition which is trying to capture the level of motorcycling interest in legitimising filtering, then go here: http://www.gopetition.com/petitions/define-and-legitimise-motorcycle-filtering/signatures.html and sign up, spam your facebook and email lists and encourage your mates to sign. Ok, that's the housekeeping... Road authorities are looking at road utilisation. Road authorities see a congestion crunch in their future. There are moves afoot to look at how roads can be better utilised and there are boffins writing papers on how this can be achieved. Lane sharing is being discussed as a possibility, however, they really aren't looking at motorcycles. Instead they are looking at motorcycle like vehicles. Have a look at this paper: https://www.onlinepublications.austroads.com.au/items/AP-R351-10 (you may need to sign up to download it - it's free). There are lots of mentions of motorcycles in the above paper, but they aren't really talking about PTW's. Instead, the focus is on three wheeler light vehicles, small cars, four wheel pedal vehicles, electric powered bicycles etc and by papers like it. We need our own submission We need to write our own paper and submit it for consideration. Rider5 has a paper on the Motorcycling Australia facebook page (link TBA) that you can download and have a read. He'd really like your input. I suspect it will need a concise (read: enforceable) series of words that defines what filtering is. If it gets up, it would allow riders to filter traffic should they wish too, with all its safety and environmental benefits, in a manner that would avoid them copping a ticket. If we don't give something for consideration, we're going to get what the non riding boffins consider filtering. Savvy? What I'm interested in is what defines filtering for you. Filtering broadly defined The UK, California and other jurisdictions allow filtering, but AFAIK don't have a legal definition - Australia may end up being the first! In the UK and often in the US, they generally follow a guideline called the 20:20 rule. Here's my take on the rule: "Filtering defines a motorcycle moving safely forward between columns of vehicular traffic, the traffic not having a speed greater than ~20mph, the motorcycle at a speed no more than ~20mph greater than the overtaken traffic." In Australia that would be a 30:30 rule. (conversion to metric). Does that kind of concept work for you? Is there a better way to wordsmith the definition? The broad UK guidelines, were discussed in this thread: https://netrider.net.au/forums/showthread.php?p=1979682 Input So what say you? Are you willing to cop what the boffins define or do you want to go on the front foot?