![]() ![]() Currently, you have a linear option for this instead. How original TTD and old OpenTTD simulated both transfers and longer routes with manual distribution? With quadratic town cargo generation. Symmetry helps to make sure that most lines will be equally busy in both directions, which can make things a bit easier.īut Cargo Distribution is best used when it isn't used alone. ![]() Then from work, a coworker could take her to a nearby transportation hub but would choose a stop closest to home. Some would let their partner take them to a hub near their home in the morning (as he goes that way anyway), go to work and choose the closest stop there. Hey, some of your drivers would perhaps start around a depot (stop D), finish at a stop E around noon, while their coworker would start at E and finish at D. Well, as long as you don't go from home (A), to work (B), then to shopping, banking, etc. And this is why you have an option to turn the symmetric option a "bit less symmetric" by specifying the returning amount. Some would say symmetric simulates normal traffic, like when you go to work in the morning and go back home in the afternoon. Symmetric and asymmetric options are again different from each other. But on a network designed for these options switching to manual would free up too much capacity and would be a financial disaster. With buses, trams, ships, and planes it is easy, but with trains, you would need at least some double track sections for this, and it would probably have to learn more about signals and your infrastructure would start to take up more space (and cost more to build).Īs you see the moment you have either asymmetric or symmetric cargo distribution and passengers would take a longer route you would quickly have capacity problems. So instead of adding a bit more capacity to your line, you might have to create a different line that goes from Station C to B and to A and finally back to C. The same problem is here with the D->E passenger traffic, but if you would lose them at any transfer stop, you would have to refund the ticket price so you can lose even more traffic. Passengers who would want to move from A to C, would pay for the distance between A and C, but they would use a longer route A->B->C so they would use up capacity for more time and you will pay more maintenance costs. So in addition to locally generated passenger traffic, you would have to deal with transfers too!Īnd we have a triangle there. To make things worse, you might also have passengers, who only arrived at station A on a different line from Station D, to use this line to get to station C, and from station C they would use another line to get to station E. So in the next round, you would still leave 4 people behind at A too. Guess what, at station C, you would have 5 passengers who remain on the bus, and you would take 15 from the stop, leaving 4 behind. From the 12 new passengers, 7 would want to go to C, and 5 would want to go to A. So you would leave 7 people behind, waiting for the next bus. Now with asymmetric option: At the first stop at A 19 people would board the bus, 11 wanting to go to B, 8 wanting to go to C when the bus reaches B, 8 people would remain on the bus, and for the remaining 12 seats, you would already have 19 people waiting. As in this round trip, 19 people would go from A to B, 19 more from B to C, and 19 more from C to A. ![]() ![]() What would we see with manual distribution? You would be happy, as all the stations are served, and you have 95% saturation. In the time required for the bus to complete the route once (and get back to A) each station would generate 19 passengers. Maybe this line forms a triangle, and there is a single bus on the line with 20 seats. Let's imagine a simple line between stations A, B, and C. You might wonder why it is a problem when you choose a more advanced option? So while others spoke about the differences between symmetric and asymmetric options, your problems started with moving away from the manual option. Switching between the manual option and the other 2 options usually is a very bad idea. So while a lot of people might recommend symmetric or asymmetric options, it makes sense to understand all 3 possibilities and learn why some guides might suggest symmetric or asymmetric options. Not only because it is how the original Transport Tycoon and other games worked, and before OpenTTD 1.4 it was the only option offered by official releases, but for quite a few reasons as well. Manual distribution is the default, for a few good reasons. ![]()
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