I was intrigued by the concept of the the Around The Big Paddock (ATBP) Certificate Ride, so I decided to read the Official Rules and I note that it must be completed by riding on the A1/M1 through Sydney.
I don't know much about other States, but I do know Sydney very well and our State Government has spent $-Billions and $-Billions building other motorways to get people off the A1/M1.
So this morning, just for giggles, I powered up Google Maps and plotted a route from the A1 at Sylvania (-34.00814, 151.10745) to the M1 at the Hawkesbury Bridge (-33.53947, 151.19847).
Google's preferred route has me departing Sylvania, and almost immediately leaving the A1 and taking the A3 to the A6, then onto the A28, NCX, and onto the M1. Hmmm, that would be the quickest and easiest route, but would also be a "fail" for the ATBP.
OK, lets place a via-point at Kyeemagh (-33.95159, 151.16117) to force Google to stay on the A1. Now, Google takes me along the A1 to the M1, through the Harbour Tunnel then off the M1 and onto the M2, A28, NCX and then the M1. Hmmmm, that would be another "fail".
OK, lets drop a third via-point at Roseville (-33.78754, 151.17910). Success. Google now takes me from Sylvania to the Hawkesbury Bridge via the A1 & M1.
I wonder how Garmin would plot things.