it looks like you could trim a couple of miles with a mountain bike and some park riding
Where exactly?
The trip is already pretty orthogonal. The only way I could see making it shorter is cutting the hypotenuse, but the Interstate is a big barrier, with only a certain number of over/underpasses to cross it when going north-south. Where do you think you see shortcuts?
And a lot of the green space you see is probably not as passable as it seems from the air.
looks like the bike trail has some oneways, if so that's the route. ![Face Palm! :facepalm:](http://www.armedpolitesociety.com/Smileys/default/smack.gif)
edit: the mitchell one looks like it's just turning around instead of making a left.
That's not the path itself. Google Maps is having a hard time following the path at those two weird spots in the eastern end of the route, and just follows the GIS coordinates of traffic directions and intersections. I think the cycling .org that provided the bike path overlay into Google Maps wanted to denote that the path abrupts on certain roads, but that screws up the pathing algorithm. It's one long straight shot that follows the train tracks and high-tension lines. But when I try to remove those dead-end loops by dragging the waypoint dots, it either gets even worse, or just refuses to go away.
Is the bike trail paved or dirt?
It's partly paved, or gravel. If you looked at it from street-view, you're probably seeing the paved aprons that go up to the car-gate with pedestrian/bike sized gaps in them. The path has been there since the 70's, so it's not very loose, it's like a compacted gravel driveway. And Wisconsin Electric also uses it as their right-of-way to access the towers, so there are service trucks packing it down every now and again too.
Although I think a "hybrid" would probably be the best kind of bike for this commute in the long-run. Especially so I can exploit any curb-hopping or other shortcuts to make my ride as fast/short as possible. So I'm thinking that would have the best compromise of road efficiency and coasting and off-road characteristics that I'd want.
My only concern from what I have read so far is the shape your bike is in.
If this works out you might consider a new bike. I recently picked up my first "real" bike, a 2009 Trek 4300 mountain bike. If I get a job closer to home (I might soon) I will definitely commute on my bicycle regulary.
~Norinco
My bike is certainly showing it's age. Although when my kids started riding two-wheelers, I took mine to a local bike shop for an inspection and tune-up etc.
However, if I do wind up doing this often enough, I will be in the market for a hybrid for the reasons I mention above.