问题
Does anyone know of a public API for historical traffic data?
Some quick googling pulls up an API from Yahoo which offers real-time data, but I'd be curious if anyone hosts a service for historical data - i.e., what was the "severity" (one of the attributes the Yahoo API returns) for a given location at a given date and time.
(I'm going to guess that such a thing doesn't exist today, or at least no public options, as this would be an immense amount of data to store, but it never hurts to ask...)
回答1:
While yahoo has shut down its traffic apis, there are a number of companies providing traffic information.
- HERE from Nokia
- Traffic API from Microsoft
- Traffic API from MapQuest
- Predictive Traffic API from INRIX
回答2:
These guys certainly have the data, but I don't know how easy it is to get access to the API: http://inrix.com/developers
来源：https://stackoverflow.com/questions/2104853/api-for-historical-traffic-data