Okay! New map! The attachment is the first representation of dataset 1.1, using a lot of dotted green lines (as per the Seattle map legend) to show non-bike-signed routes commonly used by people biking.
(It's not full resolution because Mastodon shrinks it.)
It also includes a couple of actual bike-supporting routes I missed in dataset 1.0, and a lot more dirt/loose gravel trails, particularly in unincorporated King County and on the northern Eastside. But there's bits of adds everywhere.
The dotted green is experimental. Feedback is definitely requested.
Full resolution is at Github, select the map labelled "EXPERIMENTAL":
One thing working with the version 1.1 dataset is telling me is that if there are some pretty obvious-seeming ways that an un-notated map would tell you to go... but the heat data says nobody does that.
And that's the value of including these green dashed lines, because ... that lack of heat data says there's a reason not go do there.
That's where the bike lanes stop and everybody gets RIGHT the fuck off. People going to Woodinville divert out of their way over to Sammamish River and people going to Tolt Pipeline divert towards 112th via 156th, despite both of those being longer routes.
And I don't know the reason. I can make some pretty good guesses, but they're guesses.
But I don't need to; the heat map tells me what's up.
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