I am writing to enquire about the availability of estimated bus times for
buses in Hong Kong in GTFS-RT format. GTFS-RT is the de-facto standard for
public transport agencies to deliver real-time data, including vehicle
positions, trip updates (delays and cancellations).
I would like to produce a unified journey planner which allows passengers to
plan journeys according to their customised preferences, in an operator-
neutral way, on a real-time basis. In order to achieve this, I need the
timetable data and the real-time updates in an international standard (GTFS-RT
or SIRI-ET). However, I could not find any useful information about the
endpoints to access these information for your transport operator with a web
search.
Therefore, I would like guidance how I can obtain the timetable and real-time
data in GTFS / GTFS-RT formats, such that I can run a journey planner across
all transport modes and all transport operators and plan connections according
to the real-time data.
之後追問係：
Following up to your previous reply, are the estimated times available in SIRI-ET format, which is the European de-jure standard? Otherwise, what is the proper way for a third-party journey planner to load estimated times on a whole-network basis, such that we can plan the fastest connections across the whole territory, using the real-time estimated times?
For your reference, this is done by one of the two methods below, either by downloading a snapshot of the whole network at once, or for a larger transport network, by streaming estimated times as they become available for each trip.
I would appreciate a reply from the technical team on the enquiry above.
Citymapper 嘅問題係你一長途，過咗某啲 arbitrary boundary 就即刻唔 work （佢唔係全國通用），例如我想由我屋企去 Solihull 某個 Bridge Club ， Citymapper 用唔到 （雖然呢點喺香港無關係，因為香港有 hard border ）。 Google 就出名垃圾大家都知。
bustimes 同 realtimetrains 唔係 journey planner ，佢唔能夠話你知你來緊星期日由屋企去80公里外某個山旮旯地方要搭咩車，我間中都有用來睇資訊（睇時間表同巴士嘅實時位置，主要係因為我隻 app 未整好呢個功能），但係唔多用； realtimetrains 加上因為 data licence 限制（佢唔用 National Rail 嘅 data - National Rail 嘅 licence 唔容許 mix with other predictions ，而 realtimetrains 有自己 predictions ），所以睇唔到即時 skip stop 同埋 last minute platform change due to set swap ，唔能夠用來依賴搭車，只能夠用來事後孔明（例如 Delay Repay ）。
