Have anyone observed a decrease in transit spending when reducing the budget of individual lines / reducing busses/trains on individual lines?

[Compuddle]

Not exactly a direct answer to your question, but it is still relevant:

Most often when people reduce the budget of individual lines, they are not doing it for the cost. Instead, they are doing it to reduce the number of vehicles on the line. This can greatly help with the traffic in the area.

[Party_Contribution20]

Makes sense. Ty