Difference between revisions of "Darwin:Gotchas"

Revision as of 18:19, 21 November 2023

A list of various non-obvious things Darwin (and LDBWS, in some cases) clients need to consider:

Trains can have multiple associations at the same station.
- For example, the Inverness, Fort William, and Aberdeen portions of the Caledonian Sleeper all merge at Edinburgh.
Passenger-relevant associations may occur at non-passenger stations.
- Both the Highland and Lowland Caledonian Sleepers do this, at Edinburgh and Carstairs respectively - though, on the highland sleeper, Edinburgh is a passenger stop for the Fort William portion only.
An intermediate station can become a destination if the train is cancelled short. This means:
- If you only display one time for the stop, it should be the arrival time, not the (no longer meaningful) departure time.
- Any future TS messages will only be identified by the pta/wta, not the ptd/wtd.
- I haven't encountered this, but similar considerations likely apply for stations becoming origins if trains start short.

@@ Line 7: / Line 7: @@
 * An intermediate station can become a destination if the train is cancelled short. This means:
 ** If you only display one time for the stop, it should be the arrival time, not the (no longer meaningful) departure time.
-** Any future [[Darwin:Train Status Element|TS messages]] will only be identified by the arrival time, not the departure time.
+** Any future [[Darwin:Train Status Element|TS messages]] will only be identified by the pta/wta, not the ptd/wtd.
 ** I haven't encountered this, but similar considerations likely apply for stations becoming origins if trains start short.