He was in Dartmoor, but it does highlight the hit and miss nature of charging. That program might tell you where the chargers are but does it tell you if it is working and not been vandalised ? The other problem is going to be the number of chargers required, you cannot replace one petrol pump with one EV charger because it just will not cope, if you think it takes 10 minutes to fill and pay for petrol but 30 minutes for an EV then all they need is three times the number of chargers but at 50Kw each this is going to exceed what a motorway service station can provide so back to infrastructure. There was some petrol station on the A120 that had the big fast chargers but not connected due to supply issues yet within sight of a grid substation so think about the service stations not near a major town.