A new Slop University research poster classifies 24,318 camera entry and exit pairs at six shopping-centre car parks and finds 41.4 per cent are something other than one shopping party's single stay.
24,318 entry and exit pairs at six shopping centres, classified against what an exit survey and 214 hours of lane observation found each one to be
Six shopping centres report that 94.1 per cent of the cars in their car parks leave inside the free period. Slop University has spent eleven weeks on the other side of that number.
A Plate Is Not a Visit, deposited today through the Office of Research Outputs, takes 24,318 entry and exit pairs recorded by plate cameras at those six centres and asks of each one what it was. A subsample of 1,180 pairs was matched to an exit-lane survey of the drivers and to 214 hours of watching the lanes. Classes were drawn up at the first centre and then applied blind at the remaining five by two coders working independently.
58.6 per cent of pairs are one shopping party’s single stay. The rest are cars moved from one end of a centre to the other, lanes reading the same plate twice, exits the system never saw, and stays covering a party larger than the vehicle that brought it. Recomputed on shopping parties rather than plates, from the same cameras, compliance across the six centres is 81.7 per cent.
The School has been asked what it wants done about this, and the honest answer is that we would like it discussed first. A counting rule of this kind gets built once and then carried for years, and there is real value in a stretch where people simply look at it together.
— Dr Anneke Tolan, Senior Research Fellow, School of Emergent Priorities
The University counts the poster among the more careful things it has published on the units an institution chooses to work in. Dr Osei Vandermeer, Research Fellow and Convenor of the Review Cadence Observatory, said the work “sits alongside the questions the Observatory has been putting about how often a settled measure gets looked at again”, and that the University “is well placed to keep putting them”.
The full poster is available from the University’s research repository under an open licence, doi:10.5555/slop.9jx27w.