Portique de péage en flux libre de Boulay

At the Boulay free flow tollgate (A4 exit 36): how does it work and how to pay the toll? We tell you everything here!

What is the free flow toll?

Since 2004, the Sanef Group has been committed to a toll modernisation programme in order to offer the best quality service to its customers and meet their new needs.

Sanef’s “free flow toll” solution was initially rolled out in Dublin, Vancouver and then Dartford.

Building on these successful experiences, the Sanef Group is now introducing this barrier-free tolling system for the first time in France, at the Boulay toll on the A4 motorway.

The traditional tollgate, with its payment lanes and canopy, will be replaced by a gantry fitted with equipment (antennas, cameras and laser technology) that detects vehicles.

With barrier-free tolling, there’s no longer any need to stop and pay so that means your journey is more free flowing and quicker.

Payment solutions

You have several solutions to pay the toll at Boulay:

Boulay barrier-free tolling

Performance and innovation serving our customers

Exploring today the tolling system of tomorrow is in line with the Sanef Group’s innovation process.
The aim of free flow toll is to enable vehicles to effortlessly drive through the tollgate (without stopping or slowing down) and to prioritise your safety and comfort at each moment of your journey.

So what does this change?

The Boulay site has particularly dense traffic at peak commuting times. Indeed, during the morning rush hour when people are driving to work and in the evening when they are heading home, vehicles have to drive at reduced speed in this section of the motorway due to the significant flow of traffic circulating within a limited period of time.

Based on this observation, the Sanef Group chose the Boulay tollgate to roll out this innovative free flow toll solution. It addresses the specific requirements of traffic at this site and puts an end to the recurring hold-ups.

And how does it actually work?

You just drive under the gantry without even slowing down! What could be simpler? The gantry detects your vehicle according to the equipment that you have chosen: vehicle number plate or payment tag installed on your windscreen.

Stopping at the tollgate and hesitating over which lane to take in order to pay is a thing of the past with the free flow tolling system. You just keep driving!

So what are the advantages for motorists?

+Free-flowing traffic no more stopping at the tollgate
+Reliablebye-bye queues and hold-ups
+Easierno more hesitating about which way to pay


So how do I pay?

When you go to the free flow toll, you have the choice between 3 payment solutions.

1. Liber-t toll tag

If you already have a Liber-t toll tag, then just keep driving…you don’t need to do anything! The gantry detects the toll tag (provided that it is correctly installed on your windscreen).

Haven’t subscribed yet? We have a special offer waiting for you here!

I want to subscribe

2. Payment tag

You can choose the “payment tag” solution (install the tag on your windscreen), with 2 possibilities:

  • if you regularly use the toll: a Subscriber Pass, with monthly direct debit
  • for more occasional use: a Prepaid Pass, which is rechargeable

Information: the Passes only work at the Boulay toll!

I want to order my Pass

You can also:

  • order your Pass from the payment terminal located in the Boulay toll car park,
  • or contact the customer services department on +33 (0)9 708 08 709.

3 solutions to pay automatically

3. Each time after going through the toll

If you want to pay each time you go through the toll (within 10 days):

I want to pay on line

Payment terminals are also available after the Boulay toll gantry (n°38).

Online Payment

For more information, visit our online support page!