User:Pikkabird

Cost calculations: For ease of balancing, vehicles use the same number for purchase and running cost, but with different base multipliers. The standard base multipliers are:

Running cost bases in NFO / NML: 07 / -1 locomotive purchase cost 0b / 3 locomotive running cost (steam locomotive basecost used for all locomotives, regardless of type) 0b / 3 wagon purchase cost 05 / -3 wagon running cost (diesel locomotive basecost used)

0a / 2 road vehicle purchase cost 0a / 2 road vehicle running cost

08 / 0 aircraft purchase cost 0d / 5 aircraft running cost

I usually include a GRF parameter to halve all purchase and running costs (by decreasing the bases by 1).

Variable running cost:

You should reduce the running costs of vehicles to 25% when the vehicle is stationary (current_speed == 0) for rail locomotives (ie not wagons), road vehicles and ships, or when an aircraft is on the ground (variable e6 != 12). This balancing feature improves profitability of shorter connections, vs the meta of building the longest possible routes from one side of the map to the other.

Cost formulas:

"p" may be either metric or imperial horsepower; these units are similar enough that the results will be comparable. For those using SI units, the conversion factor is 1 kW = 1.35 hp.

Locomotives: (p * 0.025) + (s * 0.1) + (c * 0.1) + ((2000 - y) * 0.1) Where p = power in hp, s = speed in km/h, y = year of introduction, c = passenger capacity.

Wagons: (s * 0.5) + (c * l) Where s = speed in km/h, c = capacity, l = "luxury" value (1 for passengers, 0.5 for freight).

Road Vehicles: (p * 0.1) + (c * l) + ((2000 - y) * 0.1) Where p = power in hp, c = capacity, l = "luxury" value (1 for passengers, 0.5 for freight), y = year of introduction.

Aircraft: (s * s / 25000) + (c * 0.2) + ((2000 - y) * 0.1) Where s = speed in km/h, c = passenger capacity, y = year of introduction.

Ships: TBD

If you have very overpowered vehicles in your set, the calculated numbers may exceed 255; in that case, you'll have to increase the relevant bases by 1, and divide costs by 2.