1. The shuttle bus is always parked in the parking lot. Other areas are forbidden.

Understanding the Context

The shuttle bus will wait for us in the parking lot. 2. The driver of the shuttle bus may stay in the vehicle playing his mobile phone, or shoot a breeze with security guards in the security room. I am not sure.

Key Insights

The driver will wait for us at/in the parking lot. After all, we drive into the parking lot. The parking lot is also a two-dimensional area, but it can be three-dimensional if the parking lot is enclosed (with a roof), which adds the notion of "height." In any event, I don't find "parked on the parking lot" incorrect. "Parking" is a more general term. (" Is there parking near the restaurant?

Final Thoughts

") "Car park" is a specific place to leave your car while you are at the restaurant. (In British English; Americans use the term " parking lot.") A parking space is a space which is used for parking. Space is countable in this usage, and parking is being used as an adjective. The bookstore is very big and there is a parking lot/space/place beside it. Do a parking lot, space, and place refer to the same thing? And which should I use here?

Thanks. Parking lot would be the US equivalent. While he was driving out of the car park (parking lot) ... or While he was driving away from the car park (parking lot) ...