Direct answer: When payment is approved, the software issues a single-use exit grant for that parking session and gives the vehicle a period to leave the car park. The period is 20 minutes by default and can be changed per kiosk; the remaining time counts down on the kiosk screen. When the vehicle reaches the exit within the period, the camera reads the plate, the grant is verified on site and the barrier opens. If the period is exceeded, the grant closes and only the extra time is charged.
How is the exit grant created?
- The payment approval reaches the software.
- A single-use exit grant is issued for the parking session; the grant is tied to that session, not to the plate.
- The grant is sent to the site PC and stored locally.
- The remaining exit time is shown second by second on the kiosk screen.
- The exit camera reads the plate; the site PC verifies the grant locally and opens the barrier.
- The grant closes as soon as it is used; a second exit cannot be made with the same payment.
What happens if the period is exceeded?
When the exit period ends, the grant closes and the barrier does not open. The driver is directed back to a kiosk or exit terminal; the system takes the amount already paid into account and charges only the extra time. Expired grants are closed automatically every few minutes.
Does the exit grant work if the internet goes down?
Yes. Once the grant has reached the site PC, verification happens entirely on site. During an outage a paid vehicle can still leave; records are completed in the cloud when the connection returns.
How should the exit period be set?
| Situation | Recommendation |
|---|---|
| Kiosk inside the car park, near the exit | The default 20 minutes is usually enough |
| Kiosk in the shopping area, far from the car park | Can be extended for walking and getting into the car |
| Exit terminal in the lane | Payment happens at the exit, so the period can be short |
| Multi-storey car park | Allow for driving down between levels |
Frequently asked questions
How long is the post-payment exit period?
20 minutes by default; it can be changed per kiosk.
Is the remaining time shown to the driver?
Yes. The remaining exit time counts down on the kiosk screen.
If exceeded, is the full fee charged again?
No. Only the extra time is charged.
Can two vehicles leave with one payment?
No. The exit grant is tied to the parking session and is single-use; it closes once used.
Is the exit grant valid without internet?
Yes. The grant is held on the site PC and verified locally.
Last updated: September 24, 2026 · Technical content: Gray Teknoloji project team
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