如果您想要在一个交通机构升级它的GTFS文件时获得通知，您可以订阅一个rss提要，您可以有选择地指定某个交通机构(见参考资料)。
If you want to be notified each time a transit authority updates its GTFS files, you can subscribe to an RSS feed, which you can optionally limit to a specific transit authority (see Resources).
你可以选择不同规模的公司工作，以此获得你想要的自由。
You can adjust the amount of freedom you get by scaling the size of company you work for.
这个方法的问题是选择哪个服务器来储存键/值对，以及当想要重新获得一个值时，如何决定要与哪个 memcached 服务器对话。
The problem with this approach is choosing which server to store your key/value pair on and how you determine which memcached server to talk to when you want to recover a value.
应用推荐