Industry: Retail and leisure
Country / region: United Kingdom (Glasgow, Scotland)
Model: RFID-6M long-range UHF barrier with 4 m boom
System scope: Two lanes, UHF windscreen tags, 6 to 12 m read distance, 3-hour free-parking logic
The park has a three-hour free-parking rule but the staff car park and the customer car park share one entrance. Staff vehicles were indistinguishable from customers, so overstays could not be charged.
Staff and tenant vehicles now carry UHF windscreen tags read 6 to 12 m before the barrier, which lets the controller separate staff from customers before the vehicle reaches the lane. Customer vehicles follow the tariff logic and overstays are charged automatically.
Staff and customer traffic is separated automatically and overstay income is now collected without extra staff. Entry throughput reached twelve vehicles a minute on the busiest Saturday.
Test condition: single lane, UHF tag on the windscreen, vehicles at 10 to 30 km/h, tags read from 6 to 12 m. Measured value: 100 % of tag reads captured before the vehicle reached the stop line. Benchmark: proximity RFID used at 10 to 80 cm forces each vehicle to stop, which halves lane throughput.
Reading the tag early is what makes the tariff logic possible; a short-range reader would force a stop and defeat the purpose of a free-flow car park.