Yes, Pram parking is stroller parking. Pram is a British term for a basket stroller.
And maybe not necessarily for DC, but for the area you may want it. Trust me, youll NEVER be able to get a stroller into these shops, even without people in them they are way too small and tight.
Also, you may want to walk the queue with your little ones and use child swap...my 5 year old still uses a stroller off and on, and shes too small to ride FJ, but I would definately think about taking her through the queue - its a show in itself.