Actually there's a better one in the ironworks where the moving tiles are. you step on a tile and it takes you round in a cicle. Just selotape the button down overnight and save yourself the effort. Then there's cycling road, where you hold up for 8 seconds and let go for 5, it's less effort than your suggested route. I used to use yours until i found the above.
But the one that cuts across Solaceon town goes straight past the day care centre. That means, if hatching eggs, you can pick more and more up every 5 minutes, which makes it very convenient.