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The lack of a tag on the windshield is no longer an obstacle to using the mandatory toll voucher on highways that accept identification by license plate. With payment linked to the trip, cameras recognize the truck and the system records the passage. For the driver, the alternative eliminates the need to install the device; for the transportation company, it facilitates the hiring of vehicles without a tag and toll expense management.

The modality is gaining ground with the expansion of free flow, a toll collection system without toll booths, but can also be used at conventional toll plazas. Its reach depends on agreements between toll voucher providers and concessionaires: license plate reading, by itself, does not g…

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