Not sure this is most rerated credit.

We're working on a large retail mall project and are unsure about the best information to use for ARC input regarding visit duration.

The challenge is that predicting visitor dwell time within the building is difficult.

We do have car park entry and exit records showing visit duration. However, can we reliably use this data to represent all visitors, including those who don't use parking?

If this strategy isn't appropriate, any alternative information for ARC visit duration input? Alternatively, is there a default value we can use?