GS Paper 3 10 marks · 150w 9 min Medium
What is the technology being employed for electronic toll collection on highways? What are its advantages and limitations? What are the proposed changes that will make this process seamless? Would this transition carry any potential hazards?
Subtopic: Science & Technology · electronic toll collection technology
How to structure your answer
Introduction (FASTag/RFID-based ETC) → technology explained → advantages → limitations → proposed changes: GNSS/GPS satellite tolling, ANPR, barrier-free → potential hazards: privacy, data security, digital divide → Conclusion
Detailed model answer
182 words · target 150 words · 9 min
The Technology
India's electronic toll collection (ETC) runs on FASTag, using passive RFID (Radio-Frequency Identification). A windscreen tag is read by overhead antennae at the plaza and linked to a prepaid/bank account under the National Electronic Toll Collection (NETC) programme run by NPCI and NHAI, enabling automatic deduction.
Advantages
- Cashless, near-cashless transactions reduce queues, wait times and fuel wastage.
- Transparency in toll revenue and reduced leakage/pilferage.
- Lower emissions from reduced idling; interoperability across plazas.
Limitations
- Vehicles still slow/stop at barriers; congestion persists at peak hours.
- Tag misreads, blacklisting errors, insufficient balance and occasional double deduction.
- Requires functioning connectivity and tag maintenance.
Proposed Changes for Seamless Tolling
- GNSS/GPS-based (satellite) tolling: distance-based charging via on-board units, with no physical barriers—vehicles pay only for the stretch used.
- ANPR (Automatic Number Plate Recognition) for barrier-free, free-flow corridors.
Potential Hazards
- Privacy and surveillance: continuous GPS tracking of movement raises data-protection concerns under the DPDP Act, 2023.
- Cybersecurity risks—spoofing, data breaches, billing disputes.
- Digital divide and grievance-redress gaps for non-tech-savvy users.
Conclusion
A phased shift to GNSS tolling with robust data-protection safeguards can deliver truly seamless, equitable highway mobility.
What an examiner expects to see
- FASTag uses passive RFID; windscreen tags read by plaza antennae under NPCI/NHAI's NETC programme with automatic prepaid deduction.
- Advantages: cashless transactions, shorter queues, fuel savings, revenue transparency, lower idling emissions, interoperability.
- Limitations: vehicles still stop at barriers, tag misreads/blacklisting, insufficient balance, double deductions, connectivity dependence.
- Proposed change: GNSS/GPS-based satellite tolling with on-board units for distance-based, barrier-free charging.
- ANPR (number-plate recognition) enables free-flow, barrier-free corridors.
- Hazard: continuous GPS location tracking raises privacy/surveillance concerns under the DPDP Act, 2023.
- Hazards: cybersecurity risks (spoofing, breaches), billing disputes, and digital-divide exclusion.
Concrete cases, schemes and judgments
- FASTag and the National Electronic Toll Collection (NETC) programme by NPCI and NHAI
- Government's move to GNSS-based (satellite) tolling on select highways
- ANPR-based barrier-free tolling pilots
- Digital Personal Data Protection (DPDP) Act, 2023 relevance to location data
Terminology to weave into the answer
FASTag / RFIDNETCGNSS-based tollingANPRbarrier-free free-flow tollingdata privacy