Choosing the wrong toll tag can lead to reading failures and traffic congestion. The correct tag must be compatible with your reader, toll lane, vehicle, and operating environment. An RFID tag for toll transmits a unique identification code to the reader. The system then verifies the vehicle account linked to the tag and processes the toll payment.

This guide explains how RFID tags for toll work and how to choose the right one.

What Is an RFID Tag for Toll Collection?

An RFID toll tag is a digital identification device for a car. The unique number is stored in the tag’s chip, and the antenna allows this number to be transmitted wirelessly.

When the vehicle approaches the toll road, the tag is scanned, and the vehicle number is identified in the system so the toll can be charged to the correct account.

The tag does not “pay” the toll itself. It simply helps identify the car electronically, much like an identification card.

How RFID Toll Collection Works

The components of a typical RFID tolling system include:

• RFID toll tag
• RFID reader and antenna
• Lane controller
• Toll system software
• Vehicle database
• Payment gateway
• Barrier gate
• Camera or automatic number plate recognition (ANPR) system

The process begins when a vehicle enters the toll lane.

1. The reader sends a signal to the RFID tag. A passive RFID toll tag draws power from the reader’s radio signal, while an active tag uses its own battery.
2. The tag sends its unique identifier to the reader, which then passes the information to the toll system software.
3. The software checks the linked vehicle account and applies the toll charge.
4. Once the transaction is approved, the barrier gate opens. In an open-road tolling system, the vehicle continues without stopping.

Most tolling systems also use cameras to identify vehicles with unreadable tags, missing payments, or other tolling issues.

Types of RFID Tags Used for Toll Collection

The choice of the appropriate tag depends on the vehicle and the mounting location. Other factors to consider include whether the tag needs to be reused, its exposure to weather, and the risk of tampering.

Windscreen RFID Tag

This tag is mounted inside the front windscreen of the vehicle. It’s suitable for passenger cars, taxis, and light commercial vehicles. It’s easy to install and less expensive. Most windscreen tags break once removed, making them difficult to transfer to another vehicle. However, metalized glass can reduce their effectiveness.

Hard RFID Vehicle Tag

This type of tag comes with a durable plastic enclosure. It can be installed using screws, clamps, or adhesive. It’s suitable for trucks, buses, and construction vehicles.

Licence Plate and Headlight Tags

A licence plate tag is mounted near the vehicle’s licence plate. It does not block the driver’s view through the windscreen, although nearby metal can affect its performance. A headlight tag may be used on vehicles with metalized windscreens. It must be able to withstand rain, sunlight, and chemicals.

Tamper-Evident RFID Tag

This type of tag shows obvious signs of damage after removal. A tamper-evident tag may break, tear, or leave visible marks.

RFID Frequencies Used in Toll Systems

LF RFID

LF RFID operates at around 125 kHz. Because of its limited read range, it’s not suitable for applications such as motorway toll lanes.

HF RFID

HF RFID operates at 13.56 MHz. It’s suitable for access control and card-based applications but is not used in most toll lane systems, which require longer read ranges.

UHF RFID

UHF RFID operates between 860 MHz and 960 MHz, depending on local regulations. Most toll lane systems use UHF RFID toll tags because of their long read range. Common standards include EPC Gen2 and ISO/IEC 18000-6C, but not all systems based on the same standard perform in the same way.

Reader power, antenna placement, and other factors can affect performance.

Active RFID

An active RFID tag uses a built-in battery to operate and can work over long distances. Some toll lane systems still use active transponders, but they are more expensive. Passive UHF tags are cheaper and do not require batteries.

Key Features to Look for in a Toll RFID Tag

More than just a properly functioning chip is needed for a toll tag.

Read Range

The tag should meet the lane’s required reading distance. However, the actual range also depends on the reader’s power supply, antenna angle, vehicle speed, type of glass, and nearby metal. Your lab results may differ from actual toll lane performance. Always conduct on-site testing using samples.

High-Speed Recognition

In some cases, vehicles pass through without slowing down. This means there’s only a limited amount of time available to read the tag. The reader, antenna, and lane setup should be suitable for high-speed detection.

Reader Compatibility

Your tags must be compatible with the reader’s frequency and protocol. In a UHF system, you must check whether it supports EPC Gen2 and ISO/IEC 18000-6C. You must also check the chip type, memory size, and encoding guidelines. Even a slight mismatch could make the entire batch unusable.

Tamper Resistance

Most tolling systems use a one-to-one mapping between a tag and a vehicle. If you use a removable tag, it could be transferred to another vehicle without authorization. A destructible label can help prevent this.

Windscreen and Weather Resistance

A metalized windscreen can reduce the performance of an RFID tag. Many cars have an RFID-friendly area around the rear-view mirror. Heat, sunlight, rain, and dirt can damage low-quality materials. You need to consider the entire tag design, not just the chip.

Printing and Encoding

Your project may require logo printing, barcodes, QR codes, or serial numbers. You may also require EPC encoding or locked memory. The printed and encoded information should be consistent.

Common Applications of RFID Toll Tags

Some applications for RFID toll stickers include:

• Motorways and expressways
• Bridge and tunnel tolls
• Open-road tolling
• Parking
• Access control
• Ports and logistics centers
• Border crossings
• Smart city transportation

The same sticker can be used for both tolling and parking. However, both systems must follow the same data standards.

RFID Toll Tags vs Other Vehicle Identification Technologies

A single technology cannot be applied to every toll project.

RFID is better suited for registered users. ANPR handles cases where the tag cannot be read. Most tolling systems use both RFID and ANPR technologies.

How to Choose the Right RFID Toll Tag

Think about your actual project requirements. Do not choose the least expensive tag right away.

1. Define the Project

Make sure the tag is suitable for tolling, parking, or vehicle access. Determine whether vehicles will come to a complete stop, slow down, or pass through at speed.

2. Check the Reader

Write down the reader’s brand, model, frequency, and protocol.

3. Set the Read Distance

Measure the actual distance between the tag and the antenna. Don’t rely only on the distance used in another project.

4. Choose the Mounting Area

Choose between windscreen, license plate, headlight, or hard mounting. Consider the effects of glass, metal, weather conditions, and tampering.

5. Select the Chip and Memory

Choose the chip according to your data and security requirements. Some applications may require only an EPC number, while others may need more memory or stronger security.

6. Confirm Custom Needs

Specify your printing, encoding, serialization, and packaging requirements.

7. Test Samples

Test the samples using your actual reader and real traffic conditions. A small test can save you a lot of trouble.

Why Choose a Professional RFID Toll Tag Manufacturer

Large toll projects may require thousands or even millions of tags. Production mistakes can become major system-wide issues, so a pre-project analysis by an experienced RFID toll tag supplier is essential.

JLTRFID can assist you with tag selection, chip selection, and mounting type. Samples of the selected RFID toll tags can also be provided before bulk production.

JLTRFID offers customized RFID toll tags, OEM and ODM services, and serial numbering. The printed numbers on the RFID tags can be matched with the encoded data. For bulk orders, please ask about quality assurance, certifications, lead times, and production capacity.

Please provide the following information when contacting JLTRFID:

• Project country
• Type of toll system
• Reader model
• Required frequency
• Read distance
• Vehicle speed
• Mounting area
• Required quantity
• Printing requirements
• Data format
• Delivery schedule

Conclusion

RFID tags for toll help identify vehicles and process payments efficiently. However, the RFID tag must also be compatible with the reader, toll lane, vehicle, and surrounding environment. Compatibility, mounting, vehicle speed, weather resistance, and tamper resistance should all be checked before deployment.

Frequently Asked Questions

Can RFID tags work at highway speed?

Yes, RFID can support high-speed vehicle recognition. However, the entire system must be able to handle the target speed. Reader power, antenna location, and tag placement all affect performance.

How long do RFID toll tags last?

The lifespan of a tag depends on its design and environmental conditions. Exposure to heat, UV rays, moisture, and physical damage may shorten its service life. Passive RFID tags do not have batteries, but the label and adhesive still need to remain stable.

Do windshield films affect reading?

Yes, some windscreen films may weaken the RFID signal. Windscreen films with a metallic coating usually have the greatest effect on performance. Use the vehicle’s RFID-friendly area whenever possible.

How to get RFID for toll?

Drivers should contact their local toll authority to learn how to register and set up an account. System integrators can contact JLTRFID for custom RFID toll tags. Please provide the reader details, required quantity, and project specifications before placing an order.