Thanks djrappa. I would be horrified if any park operated a broken/unsafe attraction. If I thought that DW was doing that, I would dob them into the Deptartment of Wokplace Health and Safety myself!

Is the park function the general ride operation, as i theme park, would the other function be test mode. Im probably way off, or maybe it is a button you hit to get the car lined up with the gates? I bet I'm way off.

Without knowing what the other control functions are I would say Park would lock the car down in the 'stopped in station' position either for; a)loading/unloading - car would return to station and then be 'parked' so that restraints could be released and it be safe for persons to dissembark and board the vehicle. There would also be interlocks tied to the braking and launch systems preventing both the breaks from releasing and the launch from being powered up until the car was 'unparked' or b)end of day lock down where the car would be parked and secured so that the ride could be shutdown at the end of the day or for maintanance operations... Am I pretty close?