https://thunderstore.io/c/cities-skylines-ii/p/Jimmyok/CustomVehiclePathfind/
Configurable path-finding cost of unsafe behaviors (violating intersection rules and making unsafe u-turns) for vehicles. Higher cost restricts vehicles from making these moves.
Recommended value: 0 for everybody breaking rules, 10000 or larger to forbid rule-breaking.
Configurable path-finding cost of lane changing for vehicles. Higher cost makes vehicles more costly to change lanes during running.
The effect is hardly observable under low lane changing cost, but devastating to your city if the lane changing cost is set to extremely high values.
Configurable path-finding cost of simply driving for vehicles. Higher cost effectively reduces the usage of vehicles for citizens (cargo and service vehicles are not affected).
Recommended value: 0.01 is the default value of the game, 1.0 results in significantly reduced vehicle traffic.