OBU Manual
Version 3.0 August 27, 2020 28
BGria
Menu => Axles trailer
The OBU display shows the sum of tractor unit axles + trailer axles.
Number of trailer axles must be updated if a trailer is coupled or
uncoupled to the tractor unit.
For Bulgaria, the maximum permissible gross weight for the vehicle
combination according to the vehicle certificate is already stored in
the system during vehicle registration and is automatically displayed
on the OBU screen, e. g. 11.8t.
HUgo
Menu => Axles trailer
The OBU display shows the sum of tractor unit axles + trailer axles.
Number of trailer axles must be updated if a trailer is coupled or
uncoupled to the tractor unit.
5.5 Service specific Toll Lanes
General information
While entering a toll road, the OBU has to be fixed in his holder. In the toll lane the OBU must not be manipulated.
For an optimal detection of the OBU in the toll lanes:
- The driver needs to ensure to keep 4m to the car in front of him
- Respect the signage in the toll lane
- Only pass the toll barrier when the light shows green
If the OBU is detected successfully, it will make a sound, the light at the lane will turn green and the barrier will open.
Emergency procedure in case of malfunctions / defects
In case of persistent malfunctions at an entry gate, eventually the driver needs to take a ticket when entering the toll road, then return this ticket and
pay with an alternative means of payment. Please note that the driver should have (and in France must have) always an alternative means of payment
with him (fuel card, credit card, or cash). The list of accepted payment methods can be found on the website of the respective toll operator.
If necessary, the driver can push the emergency button and then follow instructions of the toll staff. If the OBU is defective, the service partner needs to
be contacted.
The following signs are used to direct the driver to the correct toll lane:
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