I have updated the description to make it clearer. Good suggestion.

I agree, new name sounds better!

Well spotted. There was a small error with the Haskell tests. Please try it now.

The answer you seek can be found in the second last sentence of the description ;) How many minutes is the walk in your test case?

Here's a hint: When walking to and from the bus stop, what speed are you travelling?

Well spotted. I have updated the ruby solution so that only walking time is taken into account in this case.

Updated ruby description and solution to fix this.

I certainly did. My first approved kata. Thanks a lot!

Nice kata. I enjoyed that. Ruby translation kumited.

Nice kata. Nice tests too!

Ermahgerd that last bit was tricky er mah!

Fun kata. Lot's a ways to solve it too!

Needs some random test cases. I was able to pass with a dodgy solution.

Nice kata. Might be a bit easy for a 5 kyu though. Also, how about a few more test cases, including some random ones?

I have added a little example diagram to the description to make sure this is clear.

I'll add it to your Haskell translation as well.