When a taxi trip passes through an urban toll bridge or expressway toll plaza, how are toll fees allocated under standard municipal taxi pricing rules?

1. The driver must pay all expressway and bridge tolls from their personal earnings
2. The passenger bears the actual highway/bridge toll incurred for that specific occupied trip, added directly to the total fare
3. The toll fee must be multiplied by three and billed to the passenger
4. Tolls are automatically waived for all commercial taxis under national law