Passengers never leave the train

[NazgulCZ]

Simutrans 120.1.1, linux, pak128

I built a new train line, with one underground stop. The stop is connected to the ground via bus stop on the top.

It seems some passengers travelling to this never leave the train, the keep riding the train indefinitely. What could be wrong? Thank you.

[DrSuperGood]

The stop is connected to the ground via bus stop on the top.

Catchment area is not affected by stop placement height. There is no need to place anything on the surface if there is already a stop underground under the area. Think of the stop having subway access built into nearby buildings and on the pavements of roads.

It seems some passengers travelling to this never leave the train, the keep riding the train indefinitely. What could be wrong? Thank you.

The stop is not long enough to accommodate all vehicles of the convoy. As such the vehicles which overshoot the platform cannot be unloaded and people in them are trapped forever because they will only unload at that stop. To see the required stop length for the convoy you can open the convoy's status window and then go into details where it will list the required stop length.

It is important to note that stop length for a platform is counted from the end of the platform (relative to convoy direction) backwards. Every straight tile of way a stop tile on it belonging to the same stop as specified by the schedule will be counted. Since stop tiles cannot be placed on corners or slopes it means the entire stop platform must be straight and flat up to the required length. The cargo type of the stop tiles does not matter, a freight platform will deal with passengers as well as a passenger platform as long as the stop still accepts passengers (any stop tile or extension accepts passengers). Engines still need to be in the platform, this is not real life where you can park the engine off the end of the platform.

I have a few guess what might be happening in your case. You might have underestimated the convoy length when assembling it and accidently started one longer than all platforms. You might also have miscounted the stop length during construction, accidently missing out one or more intended tiles of stop.

It is also possible that when placing the underground stop you accidently have placed 2 separate platforms belonging to 2 different stops since ownership of joined stop tiles is always the stop directly on the tile at another height (if any) otherwise any nearby stops you own at any height. Some times the ownership of new stop tiles and extensions does not do the logical or desired, with it being assigned to the wrong nearby stop and not the one you wanted it to be. This problem is especially common if you are migrating from a bus system to a subway since subway stops can be 12 tiles long and so run near or under multiple bus stops.

[NazgulCZ]

It is also possible that when placing the underground stop you accidently have placed 2 separate platforms belonging to 2 different stops since ownership of joined stop tiles is always the stop directly on the tile at another height (if any) otherwise any nearby stops you own at any height. Some times the ownership of new stop tiles and extensions does not do the logical or desired, with it being assigned to the wrong nearby stop and not the one you wanted it to be. This problem is especially common if you are migrating from a bus system to a subway since subway stops can be 12 tiles long and so run near or under multiple bus stops.

Thank you, DrSuperGood. That was the cause. I wasn't aware that the two simultaneous platform tiles belong to different ground stops.