Oh, one of those moving ramp things - I believe they're called travelators. Escalators have steps - a moving staircase in fact - most usuitable for shopping trolleys!
I have come across a travelator in an Asda in Birmingham, but the vast majority of supermarkets have nothing of the sort. What...
No, you're not necessarily turning into Victor Meldrew (although you might be!) but if you take a serioud look at many supermarket car parks, the trolley stations are not in the optimum places. Many times a trollry left on a walk-way, or by a signboard, is far more convenient for less able...