Lead
Take a measurement of the road. Hmm. It seems a bit too long. As you measure it, you continue down this road, wondering where it will lead you.
Roads are really long, so I imagine it would take a long time to measure it (if you want to go from end to end). Imagine yourself pulling a tape measure along with you, all the while thinking, "where will this lead me?"
どう
みちび
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Where does the road that you're measuring lead you? An awesome doughnut (どう) shop!
What a perfect way to end this road measuring. You're hungry. Nom nom nom. Imagine eating your fill, and taste the donuts in your mouth. You just walked a long ways!