FreeFlow is a payment technology that uses control gantries at the charging points where this system has been implemented.

In Bizkaia it is currently located in the following infrastructures:

• “AP8 Variante Sur Metropolitana” at the Arrigorriaga control point at the connection with the AP-68, in the Vitoria-Gasteiz direction, for all types of vehicles.
• In the Artxanda Tunnels.
• In the Pay per Use (PPU) infrastructures for heavy goods transport:
  • N240 Tarragona-Bilbao (Barazar), from the El Gallo junction (km 55,773) to the Ubidea bypass (km 23,050) only for heavy goods vehicles over 3,500 kg.
  • BI625, from Laudio (km 372.560) to Basauri (km 37.310) only for N24 heavy goods vehicles over 3,500 kg

When passing through each of these points, the equipment on the metal structures (control gantries) detects the characteristics of the vehicle that is travelling and charges the corresponding amount for its passage through that point.

It can be done in two ways:

• If the vehicle has an OBE (remote payment device or electronic toll), there is no need to do anything. The control devices of the gantries detect the device as it passes through the control point and will charge the corresponding amount against that device.
• If the vehicle does not have such a device, it is necessary to link the vehicle licence plate to a valid form of payment (CARD) on the Interbiak website on the Bidesaria platform. The control devices on the gantries detect the vehicle's licence plate as it passes through the control point and the payment system will link this licence plate to the associated form of payment.

If the journey is carried out without an OBE device or without having the licence plate linked to a form of payment, the journey is recorded as “pending payment” and the system will send this status to the owner of the licence plate, indicating that in order to settle the debt they must provide a valid form of payment to which the pending journey can be linked. They may also leave this means of payment linked to the licence plate for future journeys through the points where FreeFlow technology is implemented in Bizkaia.

If the journey is carried out through free-flow infrastructures without an OBE device or without having the number plate linked to a payment method, the journey will be recorded as “to be paid”.

After detecting such a situation, the system will send the holder of the registration a communication informing him or her that

1. To pay the amount owed, through the Bidesaria platform, a valid payment method must be in place to which the journey pending payment can be linked.
2.  If you wish, you can link this payment method to the number plate for future journeys through the points where free-flow technology is implemented in Bizkaia.

If you have any outstanding journey payments for free-flow journeys

• And you are registered on the platform, log in with your username and password. The system will then tell you if it has detected any number plates for vehicles you own with outstanding free-flow journeys and will show you the steps to follow to paid the amount owed.
• If you are not yet registered, register (you can do so through this link) and follow the steps provided by the system.