Running paid parking properly rests on three decisions: who gets in, how they pay, and what happens when they do not. If all three have a clear answer and every session is recorded, the rest is detail.
First: who is allowed to enter, and how that is checked. Second: at what moment and by what means the driver pays. Third: what happens if payment fails or the stay runs long. Most car parks that lose money lose it not to equipment but because one of those three answers is vague.
A barrier with tickets is simple, but it builds a queue at the entrance and generates lost-ticket disputes. Plate recognition clears the queue and ties the session to the car automatically. A staffed gate is flexible but costs money and depends on shifts. An open car park with no control works only where checks genuinely happen.
Cash is the easiest to start with and the hardest to account for: it needs a person, collection, and trust. A terminal improves the record but still stops the driver at the gate. Payment in advance from a phone solves both, because the money is taken before arrival and the session is logged from the start.
This rule has to be written down and visible to the driver in advance, or every instance turns into an individual negotiation. Two common approaches: charge the extra time automatically, or settle the difference on exit. What matters is that the calculation is automatic rather than left to a guard's judgement.
If at the end of the day you cannot say which amount belongs to which car and which period, you also cannot see where the money goes. Session-level records are the only way to notice a shortfall in time and to measure what a rate change actually did.
One rate for everyone, when short and long stays run on different logic. Treating empty hours as a fixed fact of life. Control that works on entry but not on exit. And accounting that shows a total with no breakdown behind it.
Booking and payment happen on the driver's phone, so no money is collected at the gate. Every session is logged and reconcilable, and your empty hours become visible to drivers who would never have found your facility otherwise. The rate, the rules and the right of entry stay with you.