Testing automatic schedule computation.

From Train Director 3.7e, a schedule file can specify arrival and departure times as deltas from the train entrance time or from the trains previous scheduled departure time.

A normal train's schedule is specified like this:

Train: TEST1
Enter: 00:01, A
	00:03, 00:04, B
        00:07, 00:08, C
	00:10, 00:11, D
	00:14, -, E
.

This specification requires the author of the scenario to enter all times for all stops. If another train has similar speed (thus it takes the same time to travel from station to station), the author has to enter all times again.

Moreover, the above specification does not allow to specify a minimum stop time at stations. The default 30 seconds time will be applied at all stops.

The following syntax can now be used to specify arrival and departure times:

Train: TEST1
Enter: 00:01, A
	00:03, 00:04, B
        +180, +30, C
	+120+90, +60, D
	+180, -, E
.

Here, station B's arrival and departure time are specified with the old syntax, but station C's arrival is computed to be 180 seconds (3 minutes) after the train's departure from station B. Additionally, the departure time from C is computed to be 30 seconds after the scheduled arrival time.

Station D's line is similar: it computes the arrival time to be 120 seconds after the train's departure from station C; in addition, it specifies that the train must stop for at least 90 seconds after its arrival, no matter what the departure time is.

Of course you can also specify a delta time based from the entry time, as in the following example:

Train: TEST2
Enter: 00:20, A
	+120, +60, B

This mechanism can be combined with the specification of a random delay and a minimum stop time after assignment, as in the following example:

Train: TEST4
Wait: TEST3 120
Enter: 00:52!300/50, C
	+120, +60, D
	+120, -, E
.

This train will wait the arrival of TRAIN3. Then it will compute the departure time using the following logic:

• We start with the base departure time of 00:52;
• If TRAIN3 arrived after 00:50 (i.e. 120 seconds before our base departure time), we add 120 to TRAIN3's arrival time, and we use that as the estimated departure time for TRAIN4;
• A random delay of 300 second is considered with a 50% probability, and applied to the estimated departure time, becoming the effective departure time for TRAIN4.