Differences between the app and the web

First I found out there are different scales between the web and the app.

In the app, the transfer time scales are 
1, 2, 3, 4, 5 min, 10, 15, 30 min, 1h , 2h, 3h

In the web version, the scales are

0m, 10m,
20m,
30m,
40m, 50m, 60m

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What do our competitors do?

I began researching what our competitors are doing and noticed that most of them offer no more than five fixed options. In NS, they use single-select buttons with a default of 0 minutes transfer time, showing all search results, which can be seen as a "no value applied" option. In SNCB, they also use single-select buttons with a default 0 value. In SBB, they use radio buttons with a default value of "standard transfer time..."

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We created a 3 minutes survey to understand what users need, questions such as "How much time would you prefer for your train transfer at a station for most of your journeys? Please select the category that best suits your preference." and "Do you remember which transfer time you selected most?"

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To Sum up

we decided these values based on the survey:  

(At least) 1 min, 5 min, 10min, 15 min, 20 min, 1hr

In the survey result we found out:

• Most users select 20 mins transfer time on Reservation web planner
• Most users select at least 15 mins on App planner
• Users would like to keep 1 min transfer (they want to see minimal transfer time)
• Most users will choose a new journey if they want to explore a transfer city
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Final design based on data

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