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There are friends and there are friends..

If you’ve ever used “GottaGo“, you might have experienced it from time to time: The stations around you disappear on the “Closest” Screen.

Why does this happen? Let me explain.

So far, I used the nearby search from Google to get a list of stations around you. Fairly simple. But.. SBB.ch does i.e. not understand “Bäckeranlage” but “Zürich, Bäckeranlage” which makes sense. But Google only provides “Bäckeranlage” - not so nice to map here. I’ve seen a comment in the AppStore from someone who noted this problem.. And he is right. This gave me a hard time.. [The fact that I'm in the exam session was no helpful either but nevermind :)]

How was the problem solved so far? With reverse geocoding. With the (great) API provided by geonames.org, I could more or less flatten this problems out. More or less? Yes. In the logs (Yes, sorry, I keep logfiles, but it’s to improve the query results, nothing more. I don’t see any IDs or sth. Just from where to where you are going and what method was successful for your query) I saw that a lot of requests for simple station names had to be handled by the “Google Fallback” - which is obviously not intended. This “Google Fallback” should catch up, when/if you search for an address or a POI (like Subway Restaurant Zurich). Why is that? Because the city mapping from Swiss Postal Service and SBB are quite different. I.e. there is a “Klein-Basel” in their database, where there is only a “Basel” on the SBB side. Then there are various ambiguous names, like “Bern / Liebefeld” which is also no hit on SBB.ch .. I guess you see the point.

Summary: Google returns list a stations which do not have the same name on SBB.ch which cannot alway be corrected because the reverse geocoder is not always “right”.

What do you do in your darkest hours? Yes, you ask your friends. There are friends. I’d call them “GottaGo”’s Baywatch ;) I was looking for a solution. Since we plan to release the next iteration very soon and we need a lot of work to do. (Btw.: we is me and Stefan Sicher from sichr.com who is working on the new design like a crazy cow ;) - and no, that design from the last blogpost is not from him, that’s just a mock-design I used to illustrate the layout)

Again - solution. I asked the guys over at local.ch again to help me out. Guess what - they did. They didn’t even say “Yes, we will look into it” - no. Just “Yes, we do it. Just say what you need so I can do it _before_ holidays”. Really - how awesome is this? This will require a few more Horsepower to be squeezed out of my dear “gonzo” but it’s a real breath of fresh air - the light at the end of the tunnel ;)

So you might wonder, what they will provide me.. A lot. First of all: Station-names as on SBB.ch (really exactly the same) together with coordinates (WGS coordinates, they used CH1903 so far). Together with their superfast services and customized XML interface, this will free us from bloated information we don’t really need and exact information we really need.

Then there is autocomplete. I was really worried about that.. (Really really worried. I set this up on another server so I could do it with a different IP-Address in case SBB.ch would block this). I got full permission and a customized API to do autocomplete stuff on local.ch .. Again: superfast! (I know, SBB.ch does a lot more computing for that stuff, but it was really slow :))

As I read these lines, I wanted to tell Joel to bake a big cake so I could give it to the local team. For all those who asked me to open a Paypal account for donations or sth: abandon search.ch and use local.ch from now on! ;) that would result in a win - win situation for all of us :)

Again: I just want to thank you guys over at local.ch, namely Vasile, Patrice, Ebi and Joel for your effort. I hope the users will appreciate it as much as I do :)

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Filed under: GottaGo, Information, Tech, iPhone on August 22, 2008 at 12:06 am by marc.
Tags: GottaGo, iPhone, nearby, sbb, sdk, stations